Differences Between Bolts and Studs

Thread pitch : same

Diameter (Threaded portion) - same.

Diameter of shank - usually same, but not always.

Some times the other side of stud will have opposite threading, i.e., if you hold the stud in your hand left side of shank will have right hand thread, and right side will have left hand thread of same pitch.

DHAYANANDAHN.S

A stud is threaded on both ends, no head. The threads may or may not extend the full length of the piece. If they do extend throughout, it may be called threaded rod or all-thread rod. It will engage two nuts, one on each end, or maybe more nuts if jam nuts or lock nuts are used.

A bolt is threaded on one end only, with a head on the other end.

There is a subtle distinction between a cap screw and a bolt, even though they might be the same dimensions. A bolt typically passes through two holes and engages a nut. A cap screw passes through one hole and engages a tapped hole in the piece behind--no nut.

You may sometimes encounter the term "stud bolt". This term is illiterate or redundant; it is just a stud.

Sincerely yours--Editor Crankshaft

Hi Tornado, so bolts and studs have the exactly threads and diameters?

Thanks.

Your question is similar to asking whether one computer is identical to another. The only way to know is by closely reviewing the spec.

It's understood what you're asking and, the simple answer is "yes". However, even if you have a stud and a bolt with identical nominal diameters, you'll still need to verify that the thread form and tolerances are also identical.