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ASME B18.21.1 Spring Washer are widely used in load-bearing and non-load-bearing structures of general mechanical products. They are characterized by low cost and convenient installation, and are suitable for the parts with frequent assembly and disassembly. ASME B18.21.1 Spring Washer in the screw industry, often called ASME B18.21.1 Spring Washer. The benefit of spring lock washers lies in the trapezoidal shape of the washer. When compressed to loads near the proof strength of the bolt, it will twist and flatten. This reduces the spring rate of the bolted joint which allows it to maintain more force under the same vibration levels. This prevents loosening.

DIN127A Lock Single Coil Spring Washer are commonly used metric lock washers, As you tighten a bolt, these DIN127A Lock Single Coil Spring Washer flatten to add tension to the threaded joint and prevent loosening from small amounts of vibration. DIN127A Lock Single Coil Spring Washer meet a DIN or ASME standard for split lock washer dimensions. Standard DIN127A Lock Single Coil Spring Washer have a left-hand helix, which means you can only use them with bolts that have right-hand threads to prevent clockwise rotation from vibration. 

ASTM A325 Heavy Hex Structural Bolt with its unique design, our butterfly bolts have a spring-loaded toggle that expands behind the wall once installed. This ensures a secure anchor point that can support a wide range of weights, ensuring whatever you're attaching stays in place. ASTM A325 Heavy Hex Structural Bolt can be used with a wide variety of materials, such as drywall, plaster, and even concrete. We offer our butterfly bolts in a variety of sizes to best fit your needs.

ASTM A325 Heavy Hex Bolt are designed for steel-to-steel structural connections. Consequently, they are typically very short. The A325 and A490 specifications are not intended for general applications, including anchor bolts. In these applications, substitutions of A449 for A325 and A354 grade BD for A490 should be considered.

DIN961 Hex Bolt is the most commonly used hex bolt in the metric bolt, DIN961 Hex Bolt common grades are 4.8, 6.8, 8.8, 10.9, 12.9. DIN961 Hex Bolt surface is coated with different coatings for different environments.

Steel Construction Hex Bolt are designed to endure harsh conditions and bear heavy loads, providing you with a superior level of reliability that you can count on. Made from high-grade carbon steel, our hex bolts are designed to be tough and durable. The Steel Construction Hex Bolt ensures that the bolts can handle high pressures and stresses, while the hexagonal head of the bolts provides excellent grip and allows for easy installation with a wrench or socket.