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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.
Torque Values Stainless Steel Bolt Table Chart. Recommended Bolt Torque Values for Stainless Steel and Nonferrous Fasteners (inch series). The following torque values are suggested maximums based upon actual lab testing on clean and dry or near dry fasteners.
Torque Chart for Stainless Steel Cap Screws. Imperial has made a concerted effort to provide accurate information in its catalog and on its web site, however Imperial assumes no responsibility for the accuracy of the information.
Stainless Steel Bolt and Machine Screw Torque Reference. To construct a securely assembled joint using bolts or machine screws, the fasteners must be tightened to develop the proper amount of clamping force. Therefore, using the correct installation torque is imperative.
STANDARD TORQUE VALUE CHART. There is no difference in the above chart between the torque figures for fine or coarse threads. The torque figures for a finely-threaded fastener as compared to a coarsely-threaded fastener of the same diameter may be slightly higher but hardly worth mentioning. CAUTION.
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 Values for Stainless Steel and Non-Ferrous Fasteners. Suggested Maximum Torquing Values - a guide based upon actual lab testing on dry or near dry fasteners wiped clean.
