Stainless steel screw nut manufacturer / supplier in China, offering Carbon/Stainless Steel DIN7967 Buckle Lock Nut Self-Locking Nut, ASTM A193 B7m / A194 2hm Stud Bolts & Heavy Hex Nuts, 1/2" X 70 mm B7/A194 Fluorocarbon Coating Stud Bolts with Nuts 2PCS HDG Finish for Heavy Duty Applications and so on.