Lock nuts of metal; metal nuts; nuts of metal; pipe nuts of metal; screw nuts of metal; screw-in insert nuts of metal; screw-in nuts of metal; threaded nuts of metal; wing nuts of metal; flat bolts; bolts of metal; fixing bolts of metal; joint connector bolts of metal; metal bolts as fasteners; threaded fasteners of metal; locknuts primarily of metal; metal inserts for metal locknuts; metal segments for segmented metal nuts; metal sleeves or collars for segmented metal nuts; metal washers