BigBoltNut is one of the Biggest manufacturer for headed bolts, hex bolts and hot forged bolts and nuts in India. We exports to more than a nations like Middle East (UAE, Oman, Qatar, Dubai Nigeria, Saudi Arabia), African (South Africa, Tanzania, Nigeria ) and European countries( France, Germany, Belgium, Spain etc). We manufacture bolts for sewage plants, s...
Big Bolt Nut is a leading fasteners manufacturer in India, specializing in high-quality industrial, aerospace fasteners. With a robust presence in the market, the company offers an extensive range of products including bolts, nuts, washers, threaded rods, and custom fasteners. These products are manufactured adhering to international standards such as ASTM, ...
The structural Bolts following EN 14399-4 and DIN 6914 is to use thinner nuts and shorter thread lengths to obtain the required ductility by plastic deformation of the threads within the nut. The structural bolt assembly is used in both preloaded and non-preloaded applications and it can be argued that in the event of failure by thread plastic deformation th...
Stainless steel fasteners are particularly popular in the automotive industry, which involves stainless steel screws in the construction of structural automotive components. Their unique properties—corrosion resistance, durability, and strength—are driving innovation in construction, automotive, aerospace, and renewable energy sectors. Key Benefits of Stainl...
Big Bolt Nut is recognized as the largest manufacturer of stud bolts in India, renowned for its high-quality products and extensive manufacturing capabilities. Established with a vision to cater to the growing demands of the industrial sector, the company has carved a niche for itself in the fastener industry. Big Bolt Nut specializes in the production of a ...
ASTM stud bolts and nuts are essential components in various industrial applications, known for their reliability and compliance with stringent standards. ASTM, or the American Society for Testing and Materials, provides specifications that ensure these fasteners meet rigorous quality and performance criteria. Stud bolts, which are fully threaded rods with n...
High strength, heavy duty hexagonal construction screws with diameters from 1/2" to 1-1/2" are covered by the ASTM A325 standard. Because these bolts are intended for use in structural connections, the thread length is shorter than regular hexagonal bolts. For thread lengths and other relevant dimensions, please see the structural bolts page on our website. ...
The ASTM A320 specification covers alloy steel and stainless steel bolting materials for low temperature service. This standard covers rolled, forged, or strain hardened bars, bolts, screws, studs, and stud bolts used for pressure vessels, valves, flanges, and fittings. Like the ASTM A193 specification , unless otherwise specified, the 8UN thread series is s...
Spring washers, which have axial inflexibility and are used to help fastening or loosening due to climate. Locking washers, which help fastening or loosening by precluding coiling gyration of the fastening device; locking washers are generally also spring washers. In proposition split washers( aka lock washers or spiral spring washers) are supposed to work b...
Spring washers, which have axial inflexibility and are used to help fastening or loosening due to climate. Locking washers, which help fastening or loosening by precluding coiling gyration of the fastening device; locking washers are generally also spring washers. In proposition split washers( aka lock washers or spiral spring washers) are supposed to work b...
Stainless steel bolts are known for their durability and reliability, making them the choice for many applications. Made from steel containing chromium, these bolts have excellent resistance to corrosion and oxidation. These important properties ensure that stainless steel bolts remain robust and functional even in harsh environments such as marine environme...
When fasteners vibrate, spring washers are utilized to provide stability and flexibility to bolts and nuts. Locking washers: these are usually spring washers that stop the fastening device from unscrewing and causing loosening or fastening. We manufacture these washers in carbon steel, stainless steel, and mild steel. MS, HV 100, HV 200, HV 300, SS304, SS316...
