Specifications : ASTM A 193 ASME SA 193 Standard : DIN, ASTM, BS and all International Standards Length : M02 to M33 Size : 3 mm to 200 mm Type : Flat Washer, Lock Washer, Sealing Washer, Split Washer, Slot Washer, Machine Washer, Star Washer SPRINGS Wire Spring & Flat Spring