3 8 Bolt Torque Into Aluminum

For example grade 5 1 4 20 should be torqued no more than 7 ft lb in cast iron or 6 ft lb in aluminum.

3 8 bolt torque into aluminum.

Torque values stainless steel bolt table chart. For longer fasteners the torque is reduced significantly. Grade 2 grade 5 grade 8 18 8 s s bronze brass. Ansi hardware design guide design torque and force calculations.

Torque has been converted into ft lbs by dividing the result of the formula by 12 all calculations are for coarse thread series unc. When a wrench is stored below freezing you run the risk of developing condensation that can cause the internals to rust affecting the accuracy and performance of the tool. Grade 2 calculations only cover fasteners 1 4 3 4 in diameter up to 6 long. 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.

Coarse fine coarse fine coarse fine coarse fine coarse fine coarse fine 4 5 2 4 8 4 3. Cdi torque wrenches and temperature ranges. The following torque values are suggested maximums based upon actual lab testing on clean and dry or near dry fasteners. This table is offered as the suggested maximum torque values for threaded products and is only a guide.

A bolt of the same size thread and material in a given grade can generally be tightened to a given torque. The following suggested tightening torques provide an excellent starting point for determining torque requirements. Remember you may need to vary these numbers somewhat based on the individual joint or the amount of fastener lubrication. Cdi click style clicker torque wrenches.

In grade 8 those numbers are 11 and 9. 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.