Extreme caution should be used when using a formula for torque/ tension relationships. Torque is only an indirect indication of tension. Under/over tightening of fasteners can result in costly equipment failure or personal injury.
Bolt Torque Chart
Torque has been converted into ft/lbs by dividing the result of the formula by 12; All calculations are for Coarse Thread Series (UNC). Grade 2 calculations only cover fasteners 1 ⁄ 4 “-3 ⁄ 4 ” in diameter up to 6″ long; for longer fasteners the torque is reduced significantly.
Torque Table Standard Bolt Sizes SAE - Engineers Edge
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. This table is offered as the suggested maximum torque values for threaded products and is only a guide.
Metric Thread - Bolt Torque table
The corresponding values for the various screw sizes and strength classes for metric coarse threads can be found in the metric torque table below. The following table shows the tightening torque for metric thread fasteners. In the List metric bolt torque chart you find the metric torque unit in Nm and ft lbs.
tightening fasteners with low RPMs and without interruptions, applying only light pressure, and avoiding prevailing torque lock nuts when possible. CONVERSION FACTORS:
ASTM A307 utilized 75% of 36,000 PSI. Torque values for 1/4 and 5/16-in series are in inch-pounds. All other torque values are in foot-pounds. = 0.17 for zinc plated and dry conditions; we have also found various forms of customer applied thread lockers to have a similar K value.
The Essential Bolt Torque Chart for Standard Sizes - DSM …
2024年8月12日 · Screw and Bolt Torque Table for Standard Threads. The recommended tightening torques below are a great starting point for figuring out how much torque you need.
Torque specifications, especially for critical joints, should be determined under actual assembly conditions due to the many variables involved which are difficult to predict and do affect the torque-tension relationship.
Bolt Torque Chart
Bolt Torque Chart showing suggested torque values and corresponding bolt clamping forces for various sizes and specifications of fasteners.
Nominal Tightening SizeUNRC Torque (N•m) Inch Metric Size Nominal Tightening Torque Nominal Tightening Torque Size (In-Pounds) Size (N•m) 4 5 6 8 10 1/4 516 3/8 1/2 5/8 Inch-Button Head Metric-Button Head 8-15 30 65 125 200 360 1000 1750 M3 x 0.5 M4 x 0.7 M5 x 0.8 M6 x 1 M8 x 1.25
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