... :2004 3. Bolt, Nut, Washer 4. Galvanized steel or stainless steel nut washer flat washer , bolts nuts washers , nut washer ·Detail Specification:Octopus ... , Hex, Flange, Hex socket and other you can chooseType of Nut: Square, Hex, Flange, Hex socket, Coupling, wheel, acorn, tapper, ... of Washer: Round, Square, Plat, Friction, Plate Specifications:Bolts & Nut Item No.SizeBolt LengthOCT-BN-M6 6 mm 20 mmOCT ...