40

US Fasteners, 40
Hex bolts Bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts.	Machine screws Screws with machine threads for use with a nut or in a tapped hole.
Socket screws Screws with an Allen wrench drive.	Set screws Screws with no head and machine threads for use in a tapped hole.
Nuts Nuts have internal machine threads, for use with machine thread bolts and screws.	Studs, Rod & Stock Studs, threaded rod, unthreaded rod and keystock for industrial, machining and manufacturing applications.
Threaded inserts & Rivet nuts For adding a machine thread to material that otherwise cannot be tapped.	Shoulder bolts Screws with an unthreaded shoulder that is larger in diameter than the threads. Also known as stripper bolts.