Hex bolts with 1 nuts, 2 washers, 2 isolating washers, as per attached files. Quantity: 20 000 1- ONE bolt Hex BM M 10X66.3 10.9 Code DIN 931 Wt. 0.055 KG Material : 42 CR MO 4 - Surface protection E3E. 2- ONE Nut . HEX M10 DIN 934 – Surface protection E3E Wt.0.0109 KG 3- TWO ISOLATING WASHER Material : HGW2372.1 DIN 7735 Wt. 0.001 KG - Cutting from Plate material Delimitations of Cutting Edges Are not Permissible 4- TWO Material Washer 50CRV4 din 17222 with Hardness : 470-510 hv10 AT core . Wt. 0.03 KG 5- White pipe inside bolt material polypropylene.