Nuts
Washers
Clips
Contact washer
Designed to be used seperately (Not directly assembled on a nut or screw)
Contact assembled washers
Designed to be assembled on a nut or a screw (SEMS)
Contact washers, for electrical continuity
Contact washers to be used seperately, with electrical continuity barbs
Contact plate washers
Parts with same function as contact washers, but not circular