supply of hexagonal head screw fullhexagonal head screw full,hexagonal head screw full thread with one nut, three spring washers and two fla t washers as per the following details. sl.no.1. hexagonal head screw full thread with nut size : m10 x 1.5 mm 60 degree metric pitch x 50 mm long as per is:1364 & is:1367,property clause 10.9. q ty/set 1.set, sl.no.2.spring washer,size: m 10.b single coil steel as per is;3063/1994.qty/set.3.nos, sl. no.3.flat washer size id 11 mm, od 24 mm, thickness 2 mm as per is:2016/67.qty/set.2.nos. hexag onal screw, nut and flat washer are to be coated with zinc as per as per drg.no. is:1573/1986 and spring washer is to be phosphated [ warranty period: 30 months after the date of delivery ] ]