
Shoulder Bolt Dimensions & Specifiions | AFT Fasteners
A bolt with a 1/2" diameter shoulder has a 3/8"-16 thread. A 5/8" diameter shoulder has a 1/2"-13 thread. 1. List shoulder diameter, then. 2. List thread size, then. 3. List shoulder length. Example: M6-M5 x 20 mm = a shoulder bolt with a 6 mm shoulder diameter, a 5 …