Caliber Enterprises offers a comprehensive selection of high-quality Bolts, Nuts, Washers, Threaded Rods, Screws, and Rings. Available in a variety of sizes and materials. We are the leading manufacturers of bolts, nuts, screws, threaded rods, rings, washers, rivet guns, and fasteners manufacturers in India . We also make Stainless Steel, Alloy Steel, Incoloy, Carbon Steel, Duplex Steel, and other products.A attaching connection is created using bolts. Bolts are tightened with nuts. Washers are used to evenly distribute the weight of bolts or screws in order to prevent dents/marks.