Roll-fast is a manufacturer of world class Bolts & nuts for use in Railways, these bolts are manufactured as per Indian, European and American standard in PLAIN, Black and hot dip galvanised finish, where ever applicable we can also provide these bolts in special coatings like HDG, PTFE, Geomet and Dacromet finish. Track bolts and nuts are often used as the components on rail fastening systems. Anchor bolts are used in railways fasteners tie plates and rail sleepers. T-bolts and nuts are mainly used to tighten rail clip (Or rail blade, rail clamp) to help tighten rails.