supply of hexagon head screwhexagon head screw,hexagon head screw (m20x80- 10.9, as per is:1364, part-2) [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , hexagon head screw iso 4017 - m20 x 65-10.9 1 zinc flake coating (geomet321 or similar ) with top coat,without any hexavalent chromium, without any intgrated or seperately added lubricant. mini mum salt spary test life of 1000 hours is to be ensured. 2. screws shall be of make/ brand tvs or unbrako. may be sourced from m/s lps bossard also. [ warranty period: 30 months after the date of del ivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]