supply of hexagonal bolt (m10 x 90 long) with castle nut, split pin and washer and bolts ms black hex head round body with hex nuts m-16 x 75mm , hexagonal bolt (m10 x 90 long) with castle nut, split pin and washer for master valve arran gement of discharge system in btpn wagons to drawing no -j&td/cw/per sr.drg no. sk-1653 [ warrant y period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , bolts ms black hex head round body with hex nuts m-16 x 75mm to is: 1363/1984 rev.1 (re affirmed part 1 & 3 /1992) [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]