supply of hex.head bolthex.head bolt,hex. head bolt m-24x90 with prevailing torque type nut-m24 & interlock washer suitable fo r m24 bolt. hex.head bolt m24x90 and prevelling torque type nut-m24 are of make tvs / unbrako / gkw a nd interlock washer suitable for m24 bolt of make disclock / nordlock / durlock to icf drg no : icf/st d-2-2-009, items: 12, 14 & 15 alt : j/nil. note: firm should submit authorised dealership certificate for hex. head bolt, m24 nut and inter lock washer along with supply of material [ warranty period: 30 months aft er the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]