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ses 75% of the yield strength. The prevailing torque lock nut clamp loads are listed at 75% of the proof loads specified for the appropriate grade bolt: Grade C – SAE J429 Grade 8, FNL Grade 9 – FNL Grade 9 bolt, Grade F – SAE J429 Grade 5.
Due to many variables that affect the torque-tension relationship like human error, surface texture, and lubrication the only way to determine the correct torque is through experimentation under actual joint and assembly conditions.
The basics of torque and torque wrench use on bicycles, including a table of various torque spec recommendations.
Torque Conversion Calculator. Torque Table. The following suggested tightening torques provide an excellent starting point for determining torque requirements. Remember, you may need to vary these numbers somewhat based on the individual joint or the amount of fastener lubrication.
The charts below show the ideal tightening torque for each bolt grade for a variety of sizes. The size column also includes the thread count. Identify the grade, size, and thread density of your bolts and refer to the tightening torque columns.
Nov 14, 2017 · Two types of tests can be run to determine a torque specification: measuring torque and angle to failure and measuring torque and angle to a specific tension. “Torque-angle to failure is simpler. You need less complex equipment…but it’s probably not as accurate,” says Archer.
Bolt torque chart reference guides include Grade 2, B7, A307, A325, Grade 8, A490, and Grade 5. AFT Fasteners is your trusted source for fastener information.
Bolt Torque Chart showing suggested torque values and corresponding bolt clamping forces for various sizes and specifications of fasteners.
Over 6,000 Automotive Torque Specs. Search Car Torque Specifications by Engine or Model.
Apr 26, 2023 · For a 3/8-inch grade 8 bolt in steel, the recommended torque range is between 30 and 45 foot-pounds (ft-lbs). For a 1/2-inch stainless steel bolt, the recommended torque range is between 40 and 60 ft-lbs. For a 5/16-inch lag bolt in wood, the recommended torque range is between 10 and 20 ft-lbs.
