Standard:IFI(ASTM.ASME.SAE), ASTM A193,  ASTM A320
Grade:B7/B7M,B16, L7/L7M,B8/B8M
Size:M6-M100, 1/4"-4"
Matreial:Alloy Steel
Tap-end studs have a short thread on one end, called the tap end which is threaded to a Class NC5 or Class UNRC-3A fit. This end is for screwing into a tapped hole. The other or nut end is threaded with a Class UNRC-2A fit. Length of the stud is measured overall. The tap end has a chamfered point, but the nut end may have either a chamfered or round point, at the manufacturer's option.