scope:

This standard specifies requirements for double end studs with a flattened dog point on one thread end. Double end studs are designed primarily to be used for clamping two components together by tightening nuts that are screwed onto both ends.

For sizes up to M39, this standard specifies two thread lengths for each size.

NOTE It is recommended that stud bolts with short-thread studs only be used as spare parts for existing designs, and for sizes exceeding M39.