3 8 Bolt Torque Spec

These charts show suggested maximum torque values for threaded products and are intended only as a guide.

3 8 bolt torque spec.

Arp 2000 3 8 x 1 600. I have found some ambiguity it the torque spec for the above bolts. Search car torque specifications by engine or model. 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 load calculated as 75 of the proof load when specified by the standard. 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. Astm a307 utilized 75 of 36 000 psi. 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.

Torque tension relationship for a307a grade 5 8 9 bolts locknut size threads per inch steel hex locknut steel hex flange nut grade c fnl grade 9 grade f grade g clamp load lbs. Grade 2 grade 5 grade 8 18 8 s s bronze brass. 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. Torque values for 1 4 and 5 16 in series are in inch pounds.

Always refer to the manufacturers recommended torque values if possible. 3 8 0 3750 16 0 0775 8136 38 ft lbs 43 ft lbs 51 ft lbs 7 16 0 4375 14 0 1063 11162 61 69 81. 3 8 15 17 23 26 33 37 20 22 18 20 16 18 7 16 24 27 37 41 52 58 31 33 29 31 26 27 1 2 37 41 57 64 80 90 43 45 40 42 35 37 9 16 53 59 82 91 115 129 57 63 53 58 47 51. Gm 3 8l 231ci v6 engine torque specs.

For bolting specifications that do not have a published proofload it is usually calculated at 92 of minimum yield strength. Recommended bolt torque table size recommended torque grade 2 grade 5 grade 8 18 8 s s bronze brass. The leaflet included with the rods specifies 45ftlb for all arp fasteners in that size including arp 8740 2000 l19. Torque wrench calibration browse our selection torque wrench faqs.