supply of high tensile hexagonal head bolt of size m16 x 75 mm fully threaded ( tl-75 mm ) to is 1364 and property class 10.9 of is 1367 part 3 with 3 mm dia. split pin hole at a distance of 5 mm from threaded end and hexagonal head castle nut suitable for above bolt to is 2232 latest revision grade 8 or higher, 2 plain washer to is 2016 and 1 spring washer to is 3063 ( forbes or similar ) . ( one set consist of 1 bolt with hole, 1 castle nut, 2 plain washer, 1 spring washer ) make- unbrako / tvs / bolt master / vif / lps. ( one sample to be approved, before bulk supply ) [ warranty period: 30 months after the date of delivery ] senior secton engineer madhya pradesh 200.00 set