Product Name: Tooth Lock Washer / Serrated Washer (DIN6798) Model NO.: DIN 6798 A, J, V Spring Washer Type: Standard Combination Washer Packaging: Half a Pack Combination Washer Structure: DIN 6798 a, J, V Material: Carbon Steel, Stainless Steel Type: Lock Washer Tooth Lock Washer, DIN6798: Serrated Lock Washers, Zinc Plating Washers Trademark: Sea Song Transport Package: Inner Box + Outer Carton + Wooden Pallet / Case Specification: DIN, ANSI, BS, UNI Origin: China HS Code: 7318 Product Description Serrated / Tooth Lock Washer DIN 6798 A, J, VSerrated External / Internal / Countersunk Lock Washers.DIN 6798 A,J: M1.5~M30DIN 6798 V: M2~M16Material: Carbon spring steel Mn65. Stainless Steel ANSI 420, 304, 316.Surface Finish: Black Oxide, Black Phosphating, Zinc plating, Plain. Size, thickness, style or other specifications can be designed according to your demand.