S-8077A239 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel material, ideal for harsh or wet industrial environments.
• Enhanced durability and wear resistance from the Black Oxide finish, reducing maintenance and replacement frequency.
• High load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for reliable performance in demanding applications.
• Precise alignment and smooth rotation due to the Class 3A thread fit and standard shoulder fit, minimizing assembly errors.
• Easy installation and removal with a hex drive and knurled head, providing a secure grip and reducing tool slippage.
• Compliance with environmental regulations, including RoHS 3 and REACH, ensuring safe and sustainable use in various industries.
• Consistent hardness and strength at Rockwell B79, offering long-term reliability in high-stress assemblies.

Professional Applications & Engineering Value

This 8-32 UNC thread shoulder screw is engineered to address common industrial challenges, such as misalignment and corrosion-induced failure. Made from 316 Stainless Steel with a Black Oxide finish, it excels in applications like machinery, automotive, and marine equipment, where exposure to moisture and chemicals is frequent. The coarse threading and Class 3A fit ensure quick, secure fastening, reducing assembly time and improving operational efficiency. Its precision shoulder dimensions provide stable support for rotating parts, preventing wear and extending service life in high-performance assemblies.

Specification Summary & Compliance

This shoulder screw adheres to UNC coarse thread standards with a Class 3A thread fit for tight tolerances. Dimensions include a thread size of 8-32, shoulder diameter of 7/32" (tolerance: -0.004" to -0.002"), and shoulder length of 1/2" (tolerance: -0.005" to 0.005"). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and reliability in industrial use.