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Use Prevailing Torque All-Metal Nut chart if using this style of nut. = Nominal Diameter. = Clamp Load For J429 Grade 5 and 8, FNL Grade 9, A574, Class 4.6, 8.8, 10.9 and 12.9, the clamp loads are listed at 75% of the proof loads specified by the standard. For A307 Grade A, 75% of 36,000 PSI is utilized.
Metric Bolt Torque Chart. In the following table of torque specifications, you will find all the necessary torque values in Newton-meters (Nm) for common screw thread sizes and strength classes. Please note that the required torque may vary due to differences in screw strength classes and thread sizes.
Grade 2 calculations only cover fasteners 1 ⁄ 4 “-3 ⁄ 4 ” in diameter up to 6″ long; for longer fasteners the torque is reduced significantly. Clamp loads are based on 75% of the minimum proof loads for each grade and size.
Torque-Tension Relationship for Metric Fasteners. 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. Torque values listed in foot-pounds .
FASTENER TORQUE CHARTS. Guide for Prevailing-Torque Lock Nut Assembly Torques. (Cad and Wax, Grade B, C, and Grade G flange nuts) lock nut standards from IFI-100 requirements Torque-Tension Requirements. Metric Torque Chart for Hex Head Cap Screws. Grade C. Grade B. Grade G.
This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions.
US imperial bolt torque chart. Maximum tightening torques for coarse threaded metric bolts. This chart displays values for lightly oiled threads. The tension is 85% of the proof load.
