Roll Fast is the biggest producer of stainless steel bolts and nuts in India. Stainless Steel fastener manufacturers are used in heat exchangers, instrumentation, and other applications due to our extensive industry expertise in manufacturing, sourcing, and exporting. These are also used in aggressive environments for sensitive applications. We have different types & sizes of raw materials with different grades. There are different grades of stainless steel with different specifications. These grades are mostly dependent on the chemical compositions.