Sigma Industry Fasteners
Fasteners That Operate Globally
At Sigma Industries, we specialize in the manufacturing and supply of high-quality industrial fasteners for diverse applications. With a focus on precision engineering, we offer a complete range of Bolts, Nuts, Washers, Studs, Foundation Bolts, and Chemical Anchors in MS, High Tensile, and Stainless Steel grades.
Renowned for premium quality, timely delivery, and customer satisfaction, Sigma Industries stands as a trusted partner for fastener solutions across industries such as construction, automotive, infrastructure, and heavy engineering.
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High Strength
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High Temperature
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Low
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Weathering
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Marine Grade
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Corrosion Resistant
All Purpose Fasteners
Sigma Industry specializes in manufacturing fasteners for a wide range of bolting applications across industries such as power generation, chemical processing, aerospace, automotive, and more. Our bolting solutions are designed to meet the diverse needs of various industrial sectors.
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High Strength
Strength is a primary requirement for any industrial fasteners or bolting components. Some material grades offers exceptionally high mechanical properties as compared to other alloys and are classified as high tensile or high strength bolting alloys and are prominently used in commercial and high speed automotive industry, aerospace engineering, and many more....
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High Temperature
Alloys that maintain superior physical and mechanical integrity at elevated temperatures are crucial in the fastener industry. They are essential for high-temperature applications including furnace and related equipment manufacturing, steam turbine production, metal and mineral refining, metal forming, chemical processing, and power generation.
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Low Temperature
Fasteners designed to withstand significant impact while maintaining structural integrity at low temperatures are essential for low-temperature bolting applications. These fasteners are typically manufactured from AISI or SAE 4340 alloy and conform to various ASTM specifications, including A320 L43, L7, L7M, B21, B23, and B24.
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Weathering Steel
A key category of bolting alloys is known for its high durability and resistance to corrosion and erosion caused by harsh, year-round weather conditions. These properties extend the product's life cycle and reduce maintenance costs. When exposed to the atmosphere, these alloys form an adherent protective layer of rust or patina, which helps prevent further corrosion.
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Marine Grade
Marine-grade bolting is specifically engineered using materials that offer resistance to saltwater corrosion and erosion, while also providing high strength and low-temperature performance. Commonly used materials in this category include stainless steels and copper alloys. Alternatively, high-strength alloy steels with corrosion-resistant coatings are also utilized to endure the demanding conditions of marine environments.
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Corrosion Resistant
This category of bolting alloys offers exceptional resistance to various forms of corrosion, including general corrosion, intergranular corrosion, localized corrosion, galvanic corrosion, and stress corrosion cracking under diverse environmental conditions. We supply a wide range of bolts and fasteners made from stainless steel alloys, copper alloys, tantalum, zirconium, pure nickel, and other corrosion-resistant nickel-based alloys.
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