supply of fully threaded hexagonal head screw and prevailing torque hex nut , fully threaded hexagonal head screw m12 x 40mm conforming to iso 4017/is:1364 (part 2) or latest and property class - 8.8 to is : 1367 (part - 3)-2002. the screw should be zinc electro plated to a3l of annex-e of is : 1367 (part-11). accepted makes : tvs/unbrako/dfl/tuff. [ warranty period: 30 months after the date of delivery ] ] , fully threaded hexagonal head screw m12 x 50mm conforming to iso 4017/is:1364 (part 2) or latest and property class - 8.8 to is : 1367 (part - 3)-2002. the screw should be zinc electro plated to a3l of annex-e of is : 1367 (part-11). accepted makes : tvs/unbrako/dfl/tuff. [ warranty period: 30 months after the date of delivery ] ] , prevailing torque hex nut, size m12, property class 8, conforming to iso 7040/is:7002 (tab 1) or latest. the nut should be zinc electro plated to a3l of annex-e of is 1367 (part-11). accepted makes : tvs/unbrako/dfl/tuff. [ warranty period: 30 months after the date of delivery ] ] , prevailing torque hex nut, size m12, property class 8, conforming to iso 7040/is:7002 (tab 1) or latest. the nut should be zinc electro plated to a3l of annex-e of is 1367 (part-11). accepted makes : tvs/unbrako/dfl/tuff. [ warranty period: 30 months after the date of delivery ] ]