supply of m20 bolt length 85 mm with one hex nut, one castle nut and one split pinm20 bolt length 85 mm with one hex nut, one castle nut and one split pin,m20 bolt length 85 mm with one hex nut, one castle nut and one split pin, as per is: 1364 (part-1) grade a for m 20 bolt, is:1364 (part-3) gra de b for hex head nut, is:549/2005 for split pin, is:9549/1980 for hole of nut and is: 2232:1967 grade - precision (p) as the bolt is of grade a for castle nut. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]