Cranky said

A 9.30 1/8th would be a mid 14 second pass in the 1/4



During my machinist apprenticeship, we were taught that what makes up a bolt are two nuts that are threaded onto each end of a stud and a cap screw is a screw with a fixed head on one end and they can have full threads or partial threads....like a head bolt for example. The automotive field calls things differently.

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