... :plain(oil),black,zinc,hdg double head screws in manufacturer in Foshan 1) Factory price 2) Excellent quality. 3) Product size: ... M3-M48 1/4"-3 4) OEMdouble head screws in manufacturer in ... 8#Length: 4~100mm,1/2"~4"Material: carbon steelHead CodeCSK, pan head, truss head, hexagon head, round head, oval head in cross recessed, combined, slotted ...