Material:stainless steel,steel,brass,etc screw manufacturer screw slot form:Phillips, Phil-Slot,LR,LHS Why choose YUEI screws Japanese funds enterprises located at China with high quality screws.ISO 9001, ISO14001 and TS 16949 approved.Long term screw supplier for many world famous enterprises.Competitive price and fast delivery. Featured Products high precision screw,micro screw,pan washer head ...