3 8 Bolt Torque

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.

3 8 bolt torque.

1 3 8 12 72967 1003 1254 1421 1672 118324 1627 2034 2305 2712 138686 1907 2384 2701 3278 1 1 2 12 87747 1316 1645 1865 2194 142292 2134 2668 3024 3557 166778 2502 3127 3544 4169 torque tension relationship for a307a grade 5 8 9 bolts. 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. 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.

Bolt size tpi tension tightening torque range ft lbs min max min max galv waxed plain. Torque values for 1 4 and 5 16 in series are in inch pounds. Balance shaft sprocket to balance shaft. If you have removed or loosened any bearing cap fasteners always replace them with new and torque them to the recommended torque shown on the charts 2 3 and 4.

Torque tolerance 0 15 of torquing values. Unless otherwise specified use torque values listed above. 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. Always refer to the manufacturers recommended torque values if possible.

Click on one of the links below. Astm a307 utilized 75 of 36 000 psi. 5 8 8 8 10 9 class 5 8 class 8 8 class bolt head identification bolt size grade 2 grade 5 grade 8 metric bolt head identification bolt size inches. Torque specifications for gm 3 8l 231ci v6.

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. Clamp load calculated as 75 of the proof load when specified by the standard.