All Metal Lock Nut 1. Standard: DIN980 2. Size: M3 -M24 3. Material: stainless steel 200, 201, 304 or 316 All Metal Lock Nut 1. Standard: DIN980;2. Thread: coarse, fine or extra fine (e.g. M10-1.5, M10-1.25, M10-1.0);3. Surface: full hexagon, no burr and nice flatness;4. Raw Material: from Group Company, with stable quality and competitive price;5. Processing: by multi-position cold-heading ...