pic: 5/8-18 X ¾ jam nuts by QA1 Precision Products

Was out shopping at my favorite auto parts store and found steel and aluminum 5/8-18 X ¾ jam nuts made by QA1 Precision Products. These fit on ¾ bore DA pneumatic cylinders and replace the rather large and heavy jam nuts currently seen on such products.

Cool, do you have a weight comparison.

I bet I have some 5/8 jam nuts left over from building my race car, now that you mention it.