supply of set of hexagonal head high tensile bolt , set of hexagonal head high tensile bolt with hexagonal nut, spring washer and lock washer c omprising of 02 items as per dimensions as stated below. 1) hexagonal head screw of size m20x65mm full y threaded 2mm pitch with hex nut m20, spring lock washer of m20 and plain washer of m20 size (consist of 04 items)as per is 1363 property class 8.8 with zinc plated (all 04 items shall be assembled together) 2) h ex headed bolt of size m20x220mm long with threading up to 65mm, 2mm pitch with hex nut m20, spring l ock washer of size m20 and plain washer of size m20(consist of 04 items) as per is 1363 property class 8.8 with zinc plated (all 04 items shall be assembled together). [ warranty period: 30 months after the date of delivery ] ]