File name: Metric Bolt Torque Table Pdf
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These torque levels are guideline values for metric standard threads in accordance with DIN ISO and head sizes in accordance with DIN EN ISO , DIN EN ISO , DIN EN ISO . This document provides a torque table for metric bolts with minimum tensile strengths of , , and based on ISO It lists nominal bolt sizes from M5 to M36 along with the . 5/in diameter are in inch-pounds; diameters 3/8-in and larger are in foot-lbs. Torque values for metric fasteners up through and including M8 are in inch-pounds; diameters M10 and larger . 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. Clamp loads estimated as 75% of proof load for specified bolts. 5/in diameter are in inch-pounds; diameters 3/8-in and larger are in foot-lbs. Torque values for metric fasteners up through and including M8 are in inch-pounds; diameters M10 and larger are in foot-lbs. Suggested Maximum Torquing Values - a guide based upon actual lab testing on dry or near dry fasteners wiped clean. The lubricated values were calculated at 90% of the dry condition test results. Values listed in N-m; in-lbs. up through M10, and foot-pounds for M12 and over. Note: Stainless steel fasteners tend to gall while being tightened. Suggested Maximum Torquing Values - a guide based upon actual lab testing on dry or near dry fasteners wiped clean. The lubricated values were calculated at 90% of the dry condition test results. Values listed in N-m; in-lbs. up through M10, and foot-pounds for M12 and over. Note: Stainless steel fasteners tend to gall while being tightened. 5/in diameter are in inch-pounds; diameters 3/8-in and larger are in foot-lbs. Torque values for metric fasteners up through and including M8 are in inch-pounds; diameters M10 and larger are in foot-lbs. 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.