tender for square head bolt m12x1.75x80 with one hex nut,one thin nut and one m12b spring washer.provision of split pin hole 3.2mm dia at a distance of 12mm from threaded end of the bolt. bolt as per is:2585-2006 hex nut is:1364;(part-3)-2002-6,is:1367 and thin nut as per is:1364 (part-4)-2002-05 andis:1367, springwasher as per is:3063 -1994 threaded length of the bolt-70mm. finished- parkerised.