Masonry Anchor, Tapping Screw, Driling Screw manufacturer / supplier in China, offering M12 Self Clinching Nuts 304 Stainless Steel Self-Lock Nylon Inserted Hex Lock Nuts, 8#32 Nylon Insert Lock Nuts, 304 (A2-70) Stainless Steel Locknuts, Standard Inch Thread Nylock Nuts, Throughbolt Fixings Concrete Through Bolt Anchors Masonry Thru Bolts Steel Zinc and so on.