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Metal plugs ending in a head and threaded so they can be tightly screwed into nuts to secure fastenings and assemblies.
Metal threaded plug ending in a head; it is tightly screwed into a nut to secure fastenings and assemblies.
Hollow cylinder of metal whose lining is threaded to screw onto a corresponding bolt.
Widened end of the bolt, of various shapes and sizes.
Bolt whose head comprises a section of smaller diameter for concentrating the tightening pressure.
Elongated part whose surface has a spiral protrusion for screwing into a corresponding nut.
Cylindrical nonthreaded protrusion used as a bracket as the bolt is being tightened.