Flange Lock Nut 1. Standard: DIN6926 (DIN1663) 2. Size: M3 - M20 3. Material: stainless steel 200, 201, 304 or 316 Flange Lock Nut 1. Standard: DIN6926 (DIN1663);2. Thread: coarse, fine or extra fine (e.g. M10-1.5, M10-1.25, M10-1.0);3. Surface: full hexagon and flange, no burr and nice flatness;4. Raw Material: from Group Company, with stable quality and competitive price;5. Processing: by multi ...