Torque all fasteners to 70 of full torque. Metric bolt torque calculator according to VDI 2230 standard for shank bolts with metric standard thread according to ISO 262; hexagonal bolts according to DKm-Effective diameter for the friction moment at the bolt head or nut bearing area, A0-Appropriate minimum cross-sectional area of the bolt. T K D F12. Where T Target Input Torque (ft-lb) This is your input torque from your torque wrench determined by your specified torque. K nut factor. This is your X if you are doing testing, D nominal diameter (bolt diameter) of the fastener (in.) F target preload (lb) NOTE do not confuse this with bolt yield point or yield strength. Title Metric Bolts, Screws & Nuts Tightening Torques Author Fastener Mart Created Date 8122006 102223 PM. Metric bolt grades and strength calculator to show proof strength, tensile strength, Vickers Brinell hardness, minimum breaking torque and stress area of metric bolts and screws made of carbon steel and alloy steel with.

This calculation gets a bit more complex so Im just going to leave a link to a calculator Metric Thread Shear Area Calc. Ashear 58.338mm 2thread (assumes M10x1.5) So shear strength analysis allows us to specify a minimum number of threads to. Bolt torque is calculated for a flanged assembly using the following equation. Applied Torque, T (kfd)12 in FPS Unit Where TTorque in ft-lb kDimensionless nut factor or tightening factor faxial force in pounds dNominal bolt diameter in inches In the Metric System, Torque Applied, T (k.d.f)1000 where T Torque in N-m f Bolt load in N.

Those 10 inches is the Arm in this calculation. The formula is TFA or FTA where T equals the torque, F equals the force and A equals the arm or moment. Therefore, an example would be to torque a bolt on a cylinder head in an engine. The required torque from the manufacturer is 100 Ft. Lbs. Foot Pounds). The greater the tensile strength of the bolts, the more torque the bolts can take and tighter the joint can be fixed. No matter the system, the higher the number the greater the strength of the bolt. They are generally used for metric bolts but can sometimes be seen on imperial versions, although this is less common, and are to be used as a.

Title Metric Bolts, Screws & Nuts Tightening Torques Author Fastener Mart Created Date 8122006 102223 PM. mm Threads per mm mm 2 MPa N N-mm coarse To Activate Copy WS M8 x 1.25. James Pike After opening the workbook To activate the worksheet click on another worksheet and then come back to this worksheet. James Pike The user can select SAE 429 in-lb (English) or Metric (SI) ISO bolts in either coarse or fine thread types. Standard bolt strength. Metric Bolt Torque Table Estimated with clamp load as 75 of proof load as specified in ISO 898-1. Property Class. 8.8 Grade Hex . 10.9 Grade Hex . 12.9 Socket Head . Cap Screw. Minimum Tensile Strength MPa. M6 - M16 800 M20 - M30 830. 1040. 1220. Nominal Size and Thread Pitch. Bolt Torque Specs in Newton Meters - Nm.

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calculator bolt torque calculators, metric bolts screws amp nuts tightening torques, metric torque values classic motorworks, metric stainless steel torque mar 6 2009 fastenal, 1 2. torque values for brass fasteners mechanical engineering, boltmasters pty ltd recommended. Metric Bolt Conversion Fastener Conversion Chart Dimensions Specifications Stainless Steel Fasteners Data Diameters Size Fasteners Weight Calculator Price in India. Raaj Sagar Steels is an international supplier of Slotted Machine Screws, Spanner (Snake Eye) Machine Screws, Stainless Steel Lag Screws, Torx Machine Screws, Trim. Torque Conversion Calculator. You can use this free torque conversion calculator to easily convert a range of torque measurement units including pound-force inches, Newton meters, kilogram-force centimeters, ounce-force inches, kilogram-force meters, among others.

May 6th, 2018 - Metric Bolts Maximum Torque in foot pounds for clean dry threads Check your Shop Manual Bolt size Low Grade Grade 8 8 Grade 10 9 Grade 12 9 6mm 3 5' 'product listing nut amp bolt group home may 5th, 2018 - edmonton nut amp bolt 8635 63 avenue edmonton alberta t6e 0e8 phone 780 465 1466 fax 780 466 6398 toll.Metric bolt grades.Bolt Torque Calculator. How to Use the Torque Calculator The procedure to use the torque calculator is as follows Step 1 Enter the force, distance, and x for the unknown in the respective input field. Step 2 Now click the button Calculate the unknown to get the torque. Step 3 Finally, the torque of the object will be displayed in the output field.

. KT Coefficient of Torque. The coefficient of torque is a calculation based on the condition of the fastener and can be affected by lubrication, plating, anti-seize compounds, etc. The coefficient of torque can be estimated as 0.2 if the condition is unknown. Example To continue the example above assuming an unknown joint condition. US and METRIC STEEL BOLT GRADES SAE 2 SAE 5 SAE 8 ALLEN SAE ID Marks No Marks 3 Lines 6 Lines None Material Low Carbon Medium Medium High Carbon Carbon Carbon Tempered Quenched Quenched M5 x 0.8 & Tempered & Tempered Tensile 74,000 psi 120,000 psi 150,000 psi 160,000 psi METRIC METRIC METRIC ALLEN ID Marks 8.8 10.9 12.9 12.9.

The SR1 program can provide important documentation for bolted joint designs where complete traceabilty is required according to ISO-9000. Tightening factor and tool precision discrepancies are available from the SR1 - VDI 2230 database. These are guidelines based upon actual experience and measurements made in the field. The Bossard &171;Online converters&187; are used for converting different units of measure, such as lengths, hardnesses, pressures etc. The converters are divided into topic areas to enable the most efficient selection possible. Length converter. Torque converter. Pressure converter. Force converter. Metric inch. fasteners converter.

Calculate Structural Metric Bolt Lengths. This information is for a guide only, and has been used in the Australian steel fabrication industry. Note Chart only works with standard metric structural bolts, grade 4.6 or 8.8 nuts and hard flat washers. The torque used to tighten a bolt is consumed by overcoming the frictio and washer (about 60), overcoming the friction between bolt thread and nut threads (ab providing energy to elongate the bolt (about 10). Tests have indicated that torque-tensio for structural bolts easily vary by. In the first instance, calculate the tensile-stress area of a bolt from ASME B1.1-1989 Appendix B using. In this equation, Dpb Db (2 3 38H), where Db.

Torque tightening is the accurate application of torque to a nut so that a bolt can hold its load securely without breaking. Too little and our materials arent properly tightened making it structurally unsafe. Too much torque can break the bolt. When you apply the right amount of torque, the bolt is properly stretched so that it can act. T K D F12. Where T Target Input Torque (ft-lb) This is your input torque from your torque wrench determined by your specified torque. K nut factor. This is your X if you are doing testing, D nominal diameter (bolt diameter) of the fastener (in.) F target preload (lb) NOTE do not confuse this with bolt yield point or yield strength. For metric bolts, the diameter is specified in millimeters (mm) and usually converted to meters (divide mm by 1000) for the calculation. K Factor (Basic) The K factor is used to account for the energy lost to friction and other factors during the tightening process. The generally accepted K factors for this calculation are.