The Shoulder bolt series, manufactured by Boneham & Turner Ltd®, is utilized as a clamping and fixing stripper bolt that also comes in different variations of names such as socket head shoulder screws, shoulder bolts or shoulder screws. Furthermore, it is designed in steel material that is high graded. It is used for dual stripper plates to be retained on its place, wherein, the tolerance of the shoulder has precised guide punches in different stripper operations.