What are the non-standard fasteners processed by automatic lathes? Bolt: A type of fastener consisting of a head and a screw. Stud: A type of fastener without a head and only with external threads on both ends. Screw: A type of fastener consisting of a head and a screw. Nut: With internal threaded holes, used to tighten and connect two parts into one piece. Self tapping screw: Similar to machine screws, but the thread on the screw is a specialized thread for self tapping screws. Wood screw: Similar to machine screws, but the thread on the screw is a specialized ribbed wood screw!
