3 8 16 Bolt Torque

Grade 2 5 and 8 values are for plated bolts.

3 8 16 bolt torque.

Torque values for and 5 16 inch series are in inch pounds. Torque values calculated from formula t kdf. Grade 2 grade 5 grade 8 18 8 s s bronze brass. All other torque values are in foot pounds.

Recommended bolt torque table size recommended torque grade 2 grade 5 grade 8 18 8 s s bronze brass coarse fine coarse fine coarse fine coarse fine coarse fine coarse fine 4 5 2 4 8 4 3 6. Bolt size tpi proof load lbs 1 clamp load lbs 2 tightening torque ft lbs galv waxed galv plain. These charts show suggested maximum torque values for threaded products and are intended only as a guide. Coarse fine coarse fine coarse fine coarse fine coarse fine coarse fine 4 5 2 4 8 4 3.

These figures represent an estimate of torque torque being the measurement of friction not tension required to induce given preload clamp load in a bolt. F t k d 1 l 100 1a example dry vs. Tightening torque guide for grade 5 8 hex cap screws this table is based on ifi 5th edition technical data n 12 n 16 using equation 1 and a torque coefficient k 0 20 for non plated steel fasteners and k 0 15 for plated fasteners. 23 section 6 appendix 12 21 01 rcr15 series rotary cutters 312 556m land pride section 6 appendix torque values chart for common bolt sizes in tpi1 n m2 ft lb3 n m ft lb n m ft lb mm x pitch4 n m ft lb n m ft lb n m ft lb 1 4 20 7 4 5 6 11 8 16 12 8 436597.

1 can be rearranged to express bolt force as. D is the nominal diameter f is the clamp load k 0 15 for lubricated conditions k 0 18 for zinc plated and dry conditions. Deflecting beam torque wrenches. Always refer to the manufacturers recommended torque values if possible.

The proof load for a m30 metric bolt grad 8 8 is 337000 n.