I am currently working on a design for a strut tower brace that involves an aluminum extruded center bar and billet aluminum strut tower caps. The caps have extruded ends that push into the hollow parts of the somewhat "H" beam profiled bar. The end product needs to be one solid piece...
I've seen OE's (and others) put split (lock) washers underneath the head of a bolt or underneath the nut in a mounting configuration. Which one is correct or does it matter? Everywhere I search I get a different answer, I need a educated answer to help make my decision. Thanks.