ARK Stainless Inc. is a trusted manufacturer and supplier of high-quality Stainless Steel Fasteners, engineered to deliver exceptional strength, reliability, and performance in diverse industrial applications. Our fasteners are designed to withstand high levels of stress and resist loosening even under demanding operational conditions.
We manufacture fasteners using premium stainless steel grades such as SS 304, 304L, 316, 316L, B8, B8M, A193, and A194. These grades offer superior corrosion resistance, excellent mechanical properties, and a brilliant surface finish, making them ideal for harsh environments and heavy-duty applications.
Our stainless steel fasteners are available in a wide range of types including hex bolts, stud bolts, socket head cap screws, hex nuts, heavy hex nuts, spring washers, flat washers, anchor bolts, knurled nuts, and threaded studs. They are manufactured as per international standards like ASTM F593, ASTM F594, ASTM A193, and ASTM A194 to ensure the highest quality and durability.
Widely used in industries such as oil & gas, petrochemical, construction, power generation, marine, and infrastructure projects, our stainless steel fasteners offer excellent resistance to corrosion, a long-lasting shiny finish, and minimal maintenance needs. ARK Stainless Inc. ensures that every fastener provides ultimate strength, reliability, and protection against environmental factors for critical service environments.
Hex bolts, commonly known as hexagon head bolts, are designed with a hexagonal head to provide easy tightening with wrenches or spanners. Manufactured as per ASTM A193, these bolts are known for their high tensile strength, which makes them suitable for heavy-duty applications. The unique hexagonal shape provides a secure grip during installation, even under high-torque conditions.
Applications: Hex bolts are widely used in mechanical, civil engineering, and construction applications. They are particularly useful in structural assemblies, such as in bridges, buildings, and machinery, where reliability and durability are crucial. They also serve in industries like oil and gas, petrochemical, automotive, and power generation.
Stud bolts are threaded fasteners with threads along the entire length, providing a superior gripping surface. These fasteners are commonly used in flange connections, where they provide secure fastening between two surfaces. Designed in accordance with ASTM A193 and ASTM A194 standards, stud bolts are available in various grades to ensure they meet the demanding requirements of industrial applications.
Applications: Stud bolts are often used in flanged connections in pipelines, valves, pumps, and pressure vessels. They are essential in industries such as power generation, petrochemical, and chemical processing, where they are exposed to high pressures and temperatures. Stud bolts are also used in large mechanical assemblies like turbines, reactors, and heavy equipment.
Socket head cap screws are designed with a cylindrical head and internal hexagonal recess for a hex wrench. These screws are manufactured in accordance with ASTM F593 and provide excellent strength, making them ideal for applications requiring precision and reliability. The compact design allows for installation in tight spaces where traditional head screws may not fit.
Applications: Socket head cap screws are commonly used in high-stress applications such as in machinery, automotive, and aerospace industries. They are also used in assembling heavy equipment and in precision instruments where torque precision is important. These fasteners are designed to hold up under both high mechanical stress and exposure to corrosive environments.
Hex nuts are hexagonal in shape and are primarily used to fasten bolts and screws. Manufactured as per ASTM A194 standards, these nuts are designed to provide a secure connection between threaded fasteners and the surfaces they hold. They are available in various grades and coatings to meet the demands of specific industrial applications.
Applications: Hex nuts are used in nearly every industrial and construction application, including structural steel assembly, heavy machinery, and mechanical engineering. These nuts are particularly useful in fastening bolts in flanged connections, pipes, and valves, ensuring that all components stay securely fastened even under high mechanical stress and vibration.
Heavy hex nuts are designed to withstand higher loads compared to standard hex nuts due to their thicker and larger profile. Manufactured in compliance with ASTM A194 Grade 8, these nuts provide superior strength and are commonly used in applications where high torque and tension are required.
Applications: Heavy hex nuts are typically used in high-stress, high-load applications such as in construction, machinery, pressure vessels, and large-scale industrial equipment. They are commonly used in flanged connections and other structural applications where secure fastening under heavy pressure is essential.
