S-92313A575 5/16"-18 x 5/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and extended service life
• Exceptional torque transmission via the hex drive design, ensuring secure installation and preventing tool slippage
• Precise thread engagement with Class 3A fit, providing reliable, vibration-resistant fastening in critical assemblies
• Enhanced durability from Rockwell B80 hardness, offering excellent resistance to wear and deformation under load
• Secure component positioning with the cup tip, which minimizes surface damage and maintains a firm grip on shafts and collars
• Broad industry compliance meeting ASME B18.3 specifications, ensuring dimensional accuracy and interchangeability
• Environmental responsibility with RoHS 3 and REACH compliance, supporting sustainable and safe manufacturing practices

Professional Applications & Engineering Value

This 5/16"-18 UNC hex headless set screw is engineered to address common industrial challenges such as component slippage, corrosion-induced failure, and assembly inaccessibility. Manufactured from 316 Stainless Steel, it provides outstanding resistance to chemicals, moisture, and high temperatures, making it suitable for marine, chemical processing, and outdoor equipment. The coarse UNC thread and Class 3A thread fit ensure quick installation and high clamping force, reducing the risk of loosening in vibrating machinery. The headless design and cup tip allow for flush mounting and minimal protrusion, ideal for securing pulleys, gears, and collars in confined spaces. By complying with ASME B18.3, this set screw guarantees precision and reliability in demanding mechanical systems, enhancing overall equipment longevity and performance.

Specification Summary & Compliance

This set screw features a 5/16"-18 UNC coarse thread with Class 3A thread fit for precise dimensional tolerance, ensuring consistent performance in industrial applications. It adheres to the ASME B18.3 standard, which governs dimensional and mechanical requirements for socket set screws. Additionally, the product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for hazardous substance restrictions.