PST v. QA1 strut rods

Sorry for the delay on a response it is my fault that I forgot to respond.

We use a grade 8 fastener, so 5/8-18 grade 8 uncoated technically calls for 240lbs-ft of torque. The weld ends on the tubing are also chrome-moly, so it could handle this much torque. However, we always used about half that, 125ft-lbs. The full clamping force is not necessary in this type of assembly.

Thanks
James From
PST