S-91318A711 7/16"-20 x 7/32" 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.
• Precise and secure fastening thanks to the Class 3A thread fit, ensuring minimal backlash and vibration resistance in critical assemblies.
• High-strength performance with a Rockwell B80 hardness, providing excellent durability and resistance to wear.
• Easy installation in confined spaces using the headless hex drive design and a standard 7/32" hex key.
• Reliable fine thread engagement (UNF 7/16"-20) for improved clamping force and better load distribution.
• Compliance with major environmental regulations, including RoHS 3 and REACH, for use in regulated industries.
• Right-hand threading for standard, intuitive installation and removal in most industrial applications.

Professional Applications & Engineering Value

This 7/16-20 UNF Class 3A set screw is engineered to address common challenges in precision machinery and equipment assembly. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for applications in moist or chemically aggressive environments. The headless hex drive design allows for flush mounting, preventing interference in compact spaces while the fine thread spacing ensures a tighter grip and superior holding power against rotational forces. With its Class 3A thread fit, this screw minimizes play and maintains alignment in high-vibration settings, such as automotive components, aerospace fixtures, and industrial automation systems. Its Rockwell B80 hardness further enhances wear resistance, extending service life and reducing maintenance needs in demanding industrial applications.

Specification Summary & Compliance

This set screw adheres to UNF thread standards with a Class 3A thread fit for high precision and tight tolerances. Key dimensions include a 7/16"-20 thread size, 7/32" length, and fine thread spacing. It is manufactured from 18-8 stainless steel and hardened to Rockwell B80 for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety standards for industrial use.