supply of hexagonal head bolt m10 x 40 full threaded as per is; 1367 bolt grade 8.8 with suitable spring washer , hexagonal head bolt m10 x 40 full threaded as per is; 1367 bolt grade 8.8 with suitable spri ng washer as per is -3063 and flat washer as per is 2016. acceptable makes for bolt: dfl / unbrako or tv s or vif only. acceptable makes for spring washer: bbbb (or) dfl/ unbrako (or) tvs only. all are zinc co ated. note: firm must specify the make in their offer otherwise offer will not be considered. [ warranty p eriod: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]