六角头螺栓 hexagon headed bolt ; Hexagon head bolts ; hexagonal head bolt ; hexagon bolt

六角头螺丝 hexagonal head screw ; Hex Cap Screws ; Hex Head Set Screws ; Alkaling Galvanization

六角头螺钉 [机] hex head screw ; hexagon head screw ; HHB ; Hex cap screw

六角头螺套 hex head bushing

六角头螺塞 hex head plug

六角头螺栓和螺钉 JIS ; Hexagon head bolts and screws

米制六角头螺栓 Metric hex bolts

六角头螺母 Hexagon nuts ; HEX NUT

内六角头螺栓 hex socket head bolt ; hexagonal socket head bolt