S-92785A501 2-56 x 5/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
• Maximum holding power and vibration resistance provided by the 90° cone point tip, ensuring secure component positioning.
• Precise, reliable fastening guaranteed by the Class 3A thread fit, offering tighter tolerances for high-strength applications.
• Easy installation in confined spaces with the headless hex drive design, allowing flush mounting and a clean finish.
• Robust installation torque handling due to the hex drive and Rockwell B80 hardness, preventing stripping and deformation.
• Wide compatibility and quick assembly with UNC coarse threads, facilitating faster engagement in various materials.
• Guaranteed quality and safety through compliance with ASME B18.3, RoHS 3, and REACH standards.

Professional Applications & Engineering Value

This 2-56 UNC set screw is engineered to address critical challenges in precision assembly and machinery. The 18-8 Stainless Steel material provides excellent resistance to oxidation and chemical exposure, making it suitable for industrial applications in automotive, aerospace, and electronics where durability is paramount. The headless design with a hex drive allows for secure, low-profile fastening in tight spaces, preventing protrusion and maintaining aerodynamic or aesthetic surfaces. The 90° cone point bites firmly into the shaft or component, resisting loosening under vibration—a common failure point in dynamic systems. Manufactured to ASME B18.3 specifications, it ensures dimensional accuracy and performance consistency, supporting right-hand thread operations for standard assembly processes. This set screw is a reliable solution for permanent positioning of gears, pulleys, and collars, enhancing overall mechanical integrity.

Specification Summary & Compliance

This set screw adheres to Class 3A thread fit for precise dimensional accuracy and superior thread engagement. It conforms to UNC coarse thread standards with a 2-56 thread size and 0.086" diameter. Manufacturing and quality are governed by ASME B18.3 specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial use.