... Product size:M3-M48 1/4"-3 4) OEMdouble head screws in manufacturer in Foshan1) Factory price2) Excellent quality ... Good after-sale service5) free sample... Quick Details for double head screws in manufacturer in Foshan Type: ScrewsPlace of Origin: ... /2"~4"Material: carbon steelHead CodeCSK, pan head, truss head, hexagon head, round head, oval head in cross recessed, combined, slotted, countersunk, ...