# Bolt Torque Calculator Metric

It should be noted that these figures are based on the first tightening of single assemblies in isolation. What are bolt strength level numbers. Mechanical Calculators: Estimation of Bolt Size and Property Class, Disc Spring Calculator, Cost Savings Calculator, Thread Engagement Length Calculator, Torque and Preload with nut factor (imperial system), Torque and Preload with Nut Factor and Tool Accuracy (imperial system), Torque and Preload with Nut Factor and Tool Accuracy (metric. Calculate the maximum torque and load for different types of bolts: BA BSF BSW Metric Coarse UNC BS970 UNF BS970 UNC ASTM UNF ASTM Mach. Most accurate bolt torque calculator given its geometry and thread diameter, using vdi 2230 standard, Screw Clearance through the specific tool 3D model Bolt torque calculator metric( vdi 2230) Bolt torque calculator metric. Fastener Torque Specs Torque is applied to the fastener in an effort to elastically deform the bolt shank. com Metric System & Specifications metric system & specifications fastenal. 5M Metric Coarse 12 Point Spline Bell Flange Head Bolt Grade-12. Near the end of the job, they might be a few kegs of bolts short, so they get whatever bolts they can find and stick them into the holes. This calculator is intended as a guide only. Information regarding socket head bolt torque chart and metric socket head bolt torque chart can easily be got online, from websites that deal with these kinds of products. Maximum tightening torque to preload a bolt Metric thread : M1 M1. US Recommended Bolt Torque. Bolt Torque Specs in Foot Pounds or (Inch Pounds) Size/Thread Grade 5 Grade 8 Grade ASTM-A574 Class Tensile Torque Reference Chart Metric (ISO 898) - Inch (SAE J429) Note: These charts are provided as a Reference only. Bolts, either Standard or Metric, all have certain torque ratings according to size and grade. Reduce value by 10% if threads. Hi I know this is fundamental engineering but i cannot remember from my uni days. 062" thick Compressed Sheet1 & GYLON® Ring Gaskets - ANSI B16. how do you calculate torque? Torque is the result of multiplying the value of Force applied by the Distance from the point of application. The first factor is the bolt's diameter. The values are stated in Inch pounds. BOLTCALC - Bolted Joint Analysis Program: bcdemo. Pre-load and tightening torques for stainless steel fasteners - Coarse Metric Threads. The second factor is the bolt's grade. Materials Static Load Repeated Load Impact Pulsating Reversed Steel 3 5 8 12 Cast Iron 4 6 10 15 Copper, Soft Metal 5 5 9 15 QInitial Tightening Force and Tightening Torque (a) (b) [Technical Data] Proper Bolt Axial Tightening Force and Proper Tightening Torque [Technical Data]. 6 M2 M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M30 M36 M42 - 3. This calculator will calculate torque given the lead screw parameters and the required force. Consequently the torque values quoted can only be regarded as a guide and bench trials. Because of this, the largest size bolt a person can typically tighten by hand about 24mm. What are bolt strength level numbers. Sy (Metric) P. com Recommended Fastener Torque:. This standard bolt torque calculator is used to find the maximum torque for the given fractional bolt with the diameter, thread series and standard of the bolt. The calculation considers tool accuracy and scatter on preload. 1568 Metric Plain Washer Designation BRITISH FASTENERS 1570 British Standard Bolts and Nuts 1570 Square and Hexagon Bolts 1570 British Standard Screwed Studs 1571 Whitworth and Fine Precision Hexagon Bolts, Screws 1574 ISO Metric Precision Hexagon Bolts, Screws and Nuts 1575 Hexagon Bolts and Screws 1576 Hexagon Nuts and Thin Nuts. 9, Class 12. People use anchor bolts and fasteners to anchor fixtures and materials to a foundation. One of the major problems associated with traditional bolt tightening methods is as the diameter of the bolt increases, the amount of torque required to tighten it increases in the third power of the diameter. First if a bolt is a replacement of an existing bolt you wouldn't want to substitute the bolt for a weaker bolt compromising strength. It is also the nominal size of the bolt. Torque values are based on clean, dry threads. Torque Calculator. ISO Metric Theads. torque device set to the appropriate assembly torque, for different types of bolt and bolt tension, as given in the following Tables in this Technical Standard. Because of this, the largest size bolt a person can typically tighten by hand about 24mm. ins Or for metric sizes: M = P x D M = torque N. Never use teflon tape. Torque unit in SI system is newton meter (nm). Accepted formulae relating torque and tension, based on many tests are: M = P x D M = torque lbf. Consult LGT Engineering for flange bolt-up procedure, target bolt stresses, and guidelines for non-standard connections. Can't find something? Try searching. Consequently the torque values quoted can only be regarded as a guide and bench trials. What is the required force on a wrench at an angle phi if the bolt comes loose with a force of 33 Nm?. Check tightness of fasteners periodically. Metric fastener threads are also specified according to thread pitch, which is the distance between adjacent threads, again in millimeters. Bolt Torque Information for Diy Mechanics 3/8 Inch Drive Torque Wrench Proper bolt torque applied with a torque wrench for any given automotive repair is the best way to assure your completed project will last as long as possible. Lets use the water pump example applied to the common 3. For metric SI units, power is watts, torque is newton metres and angular speed is radians per second (not rpm and not revolutions per second). The Snug torque is mandatory for strategies other than "Standard Torque" and requires Fastener Engineering review with possible development for Tightening Class A. For bolting specifications that do not have a published proofload, it is usually calculated at 92% of minimum yield strength. 9 ISO Metric Coarse Pitch Bolts & Screws Bolt Tension Recommended Corresponding to Assembly 65% of Proof Load Torque kN Nm 7. Our metric stud bolt to nut table is meant to help determine the correct size bolt or nut for your purpose. Axial Tightening Force for Bolt and Fatigue Limit · The proper axial tightening force for a bolt should be calculated within an elasticity range up to Load 70% of the rated yield strength when the torque method is used. Bolts Stud Bolts Mach. 14 Bolt Full Floater Vs Semi Float. This is the maximum torque that can be applied to the bolt without stripping the internal threads, using a safety factor of 1. $\endgroup$ - grfrazee Apr 7 '16 at 12:54 1 $\begingroup$ Note that the relationship between torque and clamping force is not very reliable in practical situations, and where it really matters other methods are often used to determine the clamping force. 9 Socket Head. Metric bolt torque chart lists the typical maximum recommendations for tightening torques for metric bolts. Never use teflon tape. com Recommended Fastener Torque:. Torque specifications for fasteners. neither employs nor maintains an engineering or technical staff, and All-Pro is merely supplying certain manufacturing, technical, and/or design specifications and data received. I Calculation of Axial Tightening Force and Tightening Torque. 12 Forces and Torque to Overcome Bolt Head Friction 3. 1 5 Axial Stiffness of Connected Plates. The above Table is applicable only for ASTM A320 Grade L7, A193 Grade B7 and A193 Grade B16 Stud Bolts. Nut height (thickness) Nut height needs to be equal to 0. People use anchor bolts and fasteners to anchor fixtures and materials to a foundation. The Bolted Joint Analysis calculator allows for stress analysis of a bolted joint, accounting for preload, applied axial load, and applied shear load. 5 is a metric bolt with a 10 mm diameter and 1. Bolts, either Standard or Metric, all have certain torque ratings according to size and grade. 1M Metric Coarse 12 Point Flange Head Bolt Stainless-Steel-A2 B18. ins or for metric sizes:-M = torque N. Several discussions in this technical section stress the importance of preload to maintaining joint integrity. metric torque values on: May 18, 2011, 08:58:34 pm I understand that some of you like to tighten up your bikes bolts by feel rather than using torque wrenches but for those who do use torque wrenches on their bikes fasteners I've made up a little table of torque values. This Table is applicable to Never-Seize paste and Fel-Pro lubricant, K=0. The bolt is stressed up to the proofload value, and if there is no deformation, elongation, or fracture, then the bolt is deemed to have passed. It is just as important to carefully select an appropriate tightening torque for securing machine screw joints as it is for securing bolt and nut joints. 14 Bolt Full Floater Vs Semi Float. - Calculates estimated required bolt tightening torque, minimum length of engagement to prevent stripping of threads and dimensional properties of bolts and nuts such as shear area of external and internal thread and tensile stress area of bolt. Note that columns five and nine use a 1. Big difference Nothing is going to give you that except the component manufacturer. The formula is T=FA or F=T/A where "T" equals the torque, "F" equals the force and "A" equals the arm or moment. The calculator is generic an can used for imperial and metric units as long as the use of units are consistent. Even some. (Foot Pounds). 5M Metric Coarse 12 Point Spline Bell Flange Head Bolt Grade-12. Norbar has devised easy-to-use online calculators that support the correct application of torque in three key areas: Unit conversion to assist international measurement definitions. Stainless steel bolts should always be lubricated with GTP600 or similar. 5 150# Flat Face Flanges with B7 Bolts Tables Applicable for GYLON, GRAPH-LOCK, and CNA Materials. In the Metric system, torque is measured in "Newton-meters". Torque Calculators: Enter value, select unit and click on calculate. Spaenaur has a large selection of washers to suit any project Spaenaur has: different sizes, materials, finishes, metric and inch washers, steel fender washers, fiber washers, spring lockwashers, sealing rings, disc springs, flat washers, etc. Available sizes: metric series for shafts from 16 mm to 1000 mm dia. 8%, respectively, of the total torque, confirming the commonly heard assertion that only 10 to 15% of the input torque goes toward stretching the bolt. Count on confusion about which bolts go into which holes, or which nuts are to be used with which grade of bolts. Actually I am going to carry out planned maintenance on equipment and as per job plan I am given tightening torque table in which data for brass to brass is not available. The major diameter is the largest diameter of a screw thread. Tightening Using The Bolt Head Or Nut Relation formula between bolt and tightening torque bolt torque chart bolt torque calculator metric bolts tightening torques. Fastener Torque Calculation Developed for designers and engineers that look for more information about the fastener than only the torque value. Nut is usually made of a softer material than the bolt. 2 x Bolt Diameter (mm) x Load (N) / 1000 *Please select the quantity for each item you wish to order and click the 'Add To Quote' button below. Phone: 1-800-558-2808 • Fax: 1-800-553-8769 • www. Torque units conversion calculator for metric (SI), US Customary and imperial measurement systems. com Metric System & Specifications metric system & specifications fastenal. Bolt Planet. As you can see, the grade 10. 9, Class 12. There are many methods for measuring preload (see Table 12). Torque unit in SI system is newton meter (nm). --- Torque and preload with nut factor and tool accuracy - metric. Tighten toothed or serrated-type lock nuts to the full torque value. It takes more force to tighten a 3/4-10 bolt than to tighten a 318-16 bolt because it is larger in diameter. This calculator is for imperial fasteners, use the conversion factors above if you have metric fasteners. Fasteners' Metric to Inches Conversion Chart (Items Below to be added soon) CAD Drawings: Access our CAD library of standard fastener parts. A bolt torque calculator is the best way. BOLTCALC - Bolted Joint Analysis Program: bcdemo. This is the most widely used method. Mechanical Calculators: Estimation of Bolt Size and Property Class, Disc Spring Calculator, Cost Savings Calculator, Thread Engagement Length Calculator, Torque and Preload with nut factor (imperial system), Torque and Preload with Nut Factor and Tool Accuracy (imperial system), Torque and Preload with Nut Factor and Tool Accuracy (metric. However, it is the user's responsibility to verify that the provided information is correct before using it. During the bolt tightening process, the length of the bolt increases and it behaves like an extension spring. Bolt Torque Calculator - amesweb. Bolt torque, the amount of force required to tighten a bolt, is listed according either to the Society for Automotive Engineers (SAE), which uses U. Simple Torque Calculation for Belt Conveyor If this is your first visit, be sure to check out the FAQ by clicking the link above. The recommended torque for the application. K Factor is a torque coefficient between bolt and receptacle. Result will be displayed. EZ Read Hex Bolt Torque Chart - Metric Another in the series of EZ Read Metric Bolt Chart. Tightening Torque Tightening Torque Tightening Torque Tightening Torque The torque values can only be achieved if nut (or tapped hole) has a proof load greater than or equal to the bolt's minimum ultimate tensile strength. of the rated yield strength when the torque method is used. Mechanical Calculators: Estimation of Bolt Size and Property Class, Disc Spring Calculator, Cost Savings Calculator, Thread Engagement Length Calculator, Torque and Preload with nut factor (imperial system), Torque and Preload with Nut Factor and Tool Accuracy (imperial system), Torque and Preload with Nut Factor and Tool Accuracy (metric. pdf), Text File (. What are bolt strength level numbers. This assembly torque is designed to achieve a preloading in the bolt expressed in. See the reference section for details on the equations used. Metric bolts use the millimeter as the standard reporting unit. Therefore, an example would be to torque a bolt on a cylinder head in an engine. Maximum tightening torque to preload a bolt Metric thread : M1 M1. No two bolts respond exactly the same to a given torque. Presented below are the results from TORQUE for a M12 Grade 8. Bolt Torque Calculator - Calculate required bolt torque; Improvised Torque Wrench - Improvised torque wrench with luggage scale; ISO 724 - Metric Threads - Dimensions of metric threads according ISO 724; Lubricated Bolts and Reduced Torque - Lubrication effect on bolt tension and torque; Metric Bolts - Head and Wrench Sizes - ANSI/SO, DIN and. Flange Bolt-Up Bolting Torque Table 2 The torque tables are built on specific assumptions regarding bolt and nut factor. Because of this, the largest size bolt a person can typically tighten by hand about 24mm. Bolt torque can be checked with a tool such as a torque wrench, but without a value as a guideline, a torque wrench offers no advantage. It is impossible for our products to loosen unintentionally due to the wedge created underneath the bolt head and nut. --- Torque and preload with nut factor and tool accuracy - metric. Axial Tightening Force for Bolt and Fatigue Limit · The proper axial tightening force for a bolt should be calculated within an elasticity range up to Load 70% of the rated yield strength when the torque method is used. There are a number of bolt torque charts available on the net either in word format or in excel format. The calculator is generic an can used for imperial and metric units as long as the use of units are consistent. Ultimately at the end of the day, apart from the gasket seating and bolt torque calculations, I would also want to perform a flange leakage calculation. The first factor is the bolt's diameter. 2 has been used which assumes threads are plain finish, burr free with a light oil coating. This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. 875” diameter. As received, Alloy or Mild Steel As received, Stainless Steel Cadmium plate (dry) Zinc coating (Hot-Dip Galvanized) Moly paste 700F Anti-seize HD 2400F Copper anti-seize 1800F Nickel andti-seize 2600F Copper-Graphite anti-seize 1800F API SA2 Machine oil Shear Tension (Gasket. does not accept responsibility for the misuse of this information. If I apply a torque to a bolt that is used to clamp something down, how can i calculate the axial load or the force the bolt is applying. 13 1/2" 7450 48 35 80 59. ft-lbs to nm = 0. Every different bolt or screw, in each type of fastening substrate, under varying temperature and atmospheric conditions, can handle a different amount of stress before failure. 5 150# Flat Face Flanges with B7 Bolts Tables Applicable for GYLON, GRAPH-LOCK, and CNA Materials. Torques for standard metric and imperial bolts. Apply suitable axial tension It is best to do axial tension control for tightening screw, but ac-tually it is difficult to measure. This Table is applicable to Never-Seize paste and Fel-Pro lubricant, K=0. 6 M2 M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M30 M36 M42 - 3. Actually I am going to carry out planned maintenance on equipment and as per job plan I am given tightening torque table in which data for brass to brass is not available. Flange Bolt-Up Bolting Torque Table 2 The torque tables are built on specific assumptions regarding bolt and nut factor. Consequently the torque values quoted can only be regarded as a guide and bench trials. Bolt Torque T = ft/lbs = in/lbs = Nm Joint Type P Sy (Imperial) P. The bolt is stressed up to the proofload value, and if there is no deformation, elongation, or fracture, then the bolt is deemed to have passed. This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. It is impossible for our products to loosen unintentionally due to the wedge created underneath the bolt head and nut. com, info@kmsteelindia. Their may be 10. In the metric world, these characteristics are described per DIN numbers. Metric Recommended Bolt Torque. Calculation Surface Speeds from wheel dimensions and RPM. com Metric System & Specifications metric system & specifications fastenal. Torque Specs For Metric Bolts In Nm By reza 15 Dec, 2017 Leave a comment Ez read metric bolt torque chart metric bolts thightening torques hd image of metric bolt and nut torque chart the best produck 560sl head torque metric bolt jpg. Torque unit in SI system is newton meter (nm). 12 Forces and Torque to Overcome Bolt Head Friction 3. Actually I am going to carry out planned maintenance on equipment and as per job plan I am given tightening torque table in which data for brass to brass is not available. This research examines the influence of bolt length, grip length, bolt strength, and thread lubrication on the. Another reason is if you know the property class of an existing bolt and you know its diameter, you can determine the suggested basic torque setting, even if you don't have a reference to the original torque. The torque applied to fastener must overcome all friction before loading take place. 5 150# Flat Face Flanges with B7 Bolts Tables Applicable for GYLON, GRAPH-LOCK, and CNA Materials. This is represented by the last number in a metric bolt’s designation. 737562149277. D = Bolts nominal diameter P = Clamp Load or Bolt's desired tensile load (generally 75% of yield strength) Above Three factors affect how much tension occurs when a given amount of tightening torque is applied. There are a number of bolt torque charts available on the net either in word format or in excel format. 1: Browse through the page and find the unit you want to convert from. There are two types of constant torque hose clamps: Belleville washer (1) and Tee bolt and spring (2) When the constant torque hose clamp (Belleville washer) (1) is assembled correctly, the Belleville washers (1A) are nearly collapsed flat. 6 M2 M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M30 M36 M42 - 3. Besides using metric measurements, a metric bolt uses the distance between the threads rather than the thread pitch, used in American measurements, which is the number of. Torque Why do we tighten screws？ T The purpose of tightening screws is to fix one object to another object. The algorithms used for this calculator are based on the "my" best interpretation of the ANSI/ASME B1. As the use of anti-seize is going to vary the friction characteristics of the assembly, the actual torque required will also vary. Try our free and simple bolt load calculator to approximate your bolt stress at installation. It is just as important to carefully select an appropriate tightening torque for securing machine screw joints as it is for securing bolt and nut joints. model bolt torque calculator metric vdi 2230 bolt torque calculator metric, the torque required for a 3 4 dry steel bolt to achieve this tension can be calculated as t dry 0 2 20000 lb 0 75 in 3000 in lb 3000 in lb 12 in ft 250 ft lb example required 5 / 16. Bolt Torque Calculator. By combining the torque-angle curves with a few simple calculations and a basic understanding of the. Use of its content by anyone is the sole. 737562149277. In bolted joints, clamping force is usually generated by applying torque to bolt head or nut. M for Various Thread Prediction Equations 3. Torque Values A2 or A4 Metric Stainless Steel Fasteners. See Torque Force Design Equations webpage and torque chart page for recommended fastener torque and equation data. NORD-LOCK does not take responsibility for malfunctioning or failure due to incorrect usage of the torque calculator. 4 and 8 Bolt Flanges. Our metric stud bolt to nut table is meant to help determine the correct size bolt or nut for your purpose. There can be situations where a number of bolts holding on the same component may have different torque settings despite being the same size. The long bolts are torqued to 40 foot-pounds and the short bolts to 28 foot-pounds. 3 important stud bolts charts: 1- stud bolts dimensions in inches and millimeters (number, diameter, length of stud bolts for ASME flanges of different diameter and rating); 2- stud bolts weight (in kilograms and pounds for metric and imperial bolts, by diameter and length); 3- stud bolt torque chart (tightening sequence and load to ensure proper flanged joints). The calculator below can be used to calculate the torque required to achieve a given axial bolt force or load. Size Recommended Torque; Grade 2 Grade 5 Grade 8 18-8 S/S Grade 2, 5, and 8 values are for slightly lubricated bolts. Always refer to vehicle manufactures recommended Torque setting for the specific application. In other words, tension is the stretch or elongation of a bolt that provides the clamping force of a joint where torque is a measure of the twisting force required to spin the nut up along the threads of a bolt. The major diameter is the largest diameter of a screw thread. Ansys Apdl Bolt Torque Tutorial. Miscellaneous Fastening And Self Ting Torelina Toray. See the reference section for details on the methodology and the equations used. Maximum tightening torque to preload a bolt Metric thread : M1 M1. This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. This research examines the influence of bolt length, grip length, bolt strength, and thread lubrication on the. Torque has been converted into ft/lbs by dividing the result of the formula by 12. Every different bolt or screw, in each type of fastening substrate, under varying temperature and atmospheric conditions, can handle a different amount of stress before failure. Torque values assume that Nickel Anti-Sieze thread lubricant is used. 6 M2 M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M30 M36 M42 - 3. In bolted joints, clamping force is usually generated by applying torque to bolt head or nut. What this calculator doesn't list, are these torque values for bolt and nut joints or bolt and threaded into a given material. They should also be retorqued after a few hundred miles. Several factors affect how much tension occurs when a given amount of tightening torque is applied. 8, Class 10. When designing machinery that uses lead screws, it's a common task to try and figure out the size of motor needed to drive a given force with a lead screw. 1568 Metric Plain Washer Designation BRITISH FASTENERS 1570 British Standard Bolts and Nuts 1570 Square and Hexagon Bolts 1570 British Standard Screwed Studs 1571 Whitworth and Fine Precision Hexagon Bolts, Screws 1574 ISO Metric Precision Hexagon Bolts, Screws and Nuts 1575 Hexagon Bolts and Screws 1576 Hexagon Nuts and Thin Nuts. Use of its content by anyone is the sole responsibility of that person and they assume all risk. Take the bolt to which you will be adding a nyloc to, measure its lenght with a mic, install and torque plain nut, measure its lenght again. Bolt Torque Calculator. The clamping force on a bolt is defined as the compressive force a fastener exerts on a joint. It isn't only the thrill you get when you open the throttle and your bike surges forward—it's also the rotating force you apply when you're tightening a bolt, whether it's an oil drain plug or an axle nut. 1, which doubles the clamping force. 2: Click the Convert button. Bolt Torque T = ft/lbs = in/lbs = Nm Joint Type P Sy (Imperial) P. The Yoke swivel eyebolt with a metric thread is useful for many different tasks you may have due to its 360° rotation. Bolt Diameter (D) Nut Factor (K) Bolt Torque (T) lbf/ft P. Bolt torque can be checked with a tool such as a torque wrench, but without a value as a guideline, a torque wrench offers no advantage. Accepted formulae relating torque and tension, based on many tests are: M = P x D M = torque lbf. In practice, knurl angles between 30 and 45 degrees have a positive impact on pull-out resistance with a minimal loss of torque value. 50% of torque applied is to overcome head-bearing friction, 35 % is to overcome thread friction, 15% is available to produce bolt load (Bolt tensioning). Bolt Calculation 3D Animation with Blender 3D How to use torque wrench for beginners - Duration: 8:12. Lead Screw Torque and Force Calculator. The second factor is the bolt's. The long-form equations calculate that swapping a close-diametrical-clearance hole with one 10% larger leads to a 2% reduction in bolt tension for a given torque. I am damn sure this is the complete Bolt Design Tutorial covering A-Z details on Fastener and bolts, once you gone through this you should be able to design better products with safe bolt joint methods. The Bolted Joint Analysis calculator allows for stress analysis of a bolted joint, accounting for preload, applied axial load, and applied shear load. ft-lbs to nm = 0. EZ Calc - Bolting Calculator, Enerteq's oline tool for estimating Required Torque Values. 37lbs is NOT enough torque for the size a u-bolt is. 5 109 M14 2. K - constant. bolt length assumed equal total clamped plate thickness + hnut 3) Torque Tightening and Bolt PreLoad Calculation Method of torque tightening determines accuracy of bolt preload obtained. This assembly torque is designed to achieve a preloading in the bolt expressed in. Gasket Calculator. m 5000 P = bolt tension Newtons D = bolt dia. neither employs nor maintains an engineering or technical staff, and All-Pro is merely supplying certain manufacturing, technical, and/or design specifications and data received. There’s two grades of bolts of the same diameter on site. See the reference section for details on the methodology and the equations used. We call this force to fix axial tension. See the instructions within the documentation for more details on performing this analysis. Bolt Tightening. Torque Settings Suggested Starting Values The below estimated torque calculations are only offered as a guide. Flange Bolt-Up Bolting Torque Table 2 The torque tables are built on specific assumptions regarding bolt and nut factor. Other common units are pound force foot, ounce inch and kilogram force meter. Fastener Torque Calculation Developed for designers and engineers that look for more information about the fastener than only the torque value. This calculator is intended as a guide only. Another name for fastener is anchor bolt. 5 times the bolt diameter for full strength connection (assumes nut and bolt are the same material). Small Screws, Bolts and Metric Screws for Nuts" (Yamamoto). 8 (revised) June, 2001 www. If bolts are to be torqued "dry", increase wrench setting by 20%. The required torques for fastening common steel fasteners can be found in the Bolt Torque Calculator. Select the bolt grade and lubricant and, if required, increase or decrease the bolt stress. Select relevant factors from the tables below for joint type, yield strength & nut factors. Example Calculation - Metric Units. Flange Bolt-Up Bolting Torque Table 2 The torque tables are built on specific assumptions regarding bolt and nut factor. These Locking Assemblies are of single-taper design with a self-locking taper providing good self-centering action and concentricity, as well as increased torque capacity. For bolting specifications that do not have a published proofload, it is usually calculated at 92% of minimum yield strength. Apply suitable axial tension It is best to do axial tension control for tightening screw, but ac-tually it is difficult to measure. Note / Disclaimer: The user is solely responsible for the correct interpretation of the results. A problem exists because friction has a large influence on how much torque is converted into preload. Tightening Torque Calculation For Metric Bolts New Images Bolt. The calculation considers tool accuracy and scatter on preload. mm These formulae may be used for bolts outside the range of the tables,. Bolts, either Standard or Metric, all have certain torque ratings according to size and grade. Grade 2 calculations only cover fasteners 1/4" - 3/4" in diameter up to 6" long. Enlarging the fastener-head. Tension Calculation Visual Aid Shear Calculation Visual Aid Torsion Calculation Visual Aid Bolt torque vs Clamping Load Visual Aid Bolt Torque vs Clamp Load *Note: T he torque/clamp-load relationship varies with lubrication used on the bolt (lubrication type can be input at the top of the page). Nut Factors are generalized averages that may vary greatly given all of the variables in any bolted joint, but are useful in approximating theoretical torque values. 85-100 is the correct range. The long bolts are torqued to 40 foot-pounds and the short bolts to 28 foot-pounds. The calculation considers tool accuracy and scatter on preload. 5 mm between threads. So for an example two 3/4 inch say fine thread bolt would have a different torque capacity if one is grade 8 and one grade 5. 16 This Table is applicable to Never-Seize paste and Fel-Pro lubricant, K=0. In the Metric system, torque is measured in "Newton-meters". See the instructions within the documentation for more details on performing this analysis. Nut and Bolt Stress Calculators This is the place to find UN/Unified nut and bolt dimensions/thread dimensions/sizes and stress calculators. com A55 FASTENER TORQUE CHARTS Imperial has made a concerted effort to provide accurate information in its catalog and on its web site, however Imperial assumes no responsibility for the accuracy of the information. Torque Axial Force Calculator | Strength of Materials Bolt Preload Tension Force Equation & Calculator Bolt Preload Tension Force: In the tension joint, the bolt and clamped components of the joint are pre-load designed to transfer the external tension load through the joint by way of the clamped components through the design of a proper. A metric bolt designated as ISO class 6. Maximum torque per bolt is based upon a gasket stress of either 15,000 psi or the available gasket stress at 75% of bolt yield, whichever is lower. It takes more force to tighten a 3/4-10 bolt than to tighten a 318-16 bolt because it is larger in diameter. 10 Bolt Torque Chart Templates - Free Samples , Examples & Format Our bolt torque charts are absolutely essential charts for handymen to keep handy. There are numerous "real world" complications. They should also be retorqued after a few hundred miles. This online metric bolt torque calculator is used to find the torque of the ecoguard, lubricated and dry metric bolts. A k factor of 0. Bolt Torque Calculator. 5M Metric Coarse 12 Point Spline Bell Flange Head Bolt Stainless-Steel-A2 B18. Metric Bolt Torque Calculator. Torque Calculator helps in determining the torque that arises in a rotating object. What are bolt strength level numbers. Enlarging the fastener-head. You should tighten the bolts or screws in a part to about half of the torque spec first. 9, Class 12. API 6A is an International Standard which specifies requirements and. They are of two types, metric flange bolts and metric hex bolts. The Yoke swivel eyebolt with a metric thread is useful for many different tasks you may have due to its 360° rotation. Things such as dirt in a tapped hole, grease of oil on the threads, damaged threads, hole misalignment, accuracy of torque measuring device, and numerous other factors can alter the torque-tension relationship. ins or for metric sizes:-M = torque N. --- Torque and preload with nut factor and tool accuracy - metric. DO NOT use these values if a different torque value or tightening procedure is given for specific application. Do not break the tightened piece by tightening. Definitions of terms are located below the chart. 50% of torque applied is to overcome head-bearing friction, 35 % is to overcome thread friction, 15% is available to produce bolt load (Bolt tensioning). 8, Class 10. This standard bolt torque calculator is used to find the maximum torque for the given fractional bolt with the diameter, thread series and standard of the bolt. Ansys Apdl Bolt Torque Tutorial.