S-8077A732 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial environments and chemical exposure.
• Enhanced durability and wear resistance from the Black Oxide finish, providing a protective layer against abrasion and reducing galling.
• Precise alignment and reduced assembly stress due to the Class 3A thread fit, ensuring tight tolerances and reliable fastening in critical applications.
• High mechanical strength with 70,000 psi tensile strength and 35,000 psi minimum shear strength, supporting heavy loads and dynamic forces.
• Secure and efficient installation using the 3/32" hex socket drive, allowing for high torque application and minimizing tool slippage.
• Excellent pivot and bearing surface provided by the smooth shoulder with controlled diameter and length tolerances, facilitating precise rotational movement.
• Compliance with stringent environmental standards including RoHS 3 and REACH, ensuring safety and sustainability in global supply chains.

Professional Applications & Engineering Value

This 8-32 UNC Thread Shoulder Screw is engineered to address common challenges in precision machinery, automation systems, and assembly fixtures. The 316 Stainless Steel material offers exceptional resistance to corrosion and oxidation, making it suitable for marine, chemical processing, and food-grade applications where moisture and corrosive agents are present. The Black Oxide finish not only enhances aesthetic appeal but also reduces friction and wear on the knurled head and shoulder surface, prolonging service life. With a Class 3A thread fit and coarse thread spacing, it ensures quick assembly and reliable performance in high-vibration environments, minimizing the risk of loosening. The hex drive design allows for easy installation in confined spaces, while the precise shoulder dimensions provide stable rotational support in linkages, pivots, and guide mechanisms, reducing maintenance downtime and improving operational efficiency.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for superior precision and minimal backlash. Key dimensional tolerances include a shoulder diameter of 3/16" with a tolerance of -0.004" to -0.002" and a shoulder length of 1 3/8" with a tolerance of -0.005" to 0.005", ensuring consistent performance in demanding applications. The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming the absence of hazardous substances and supporting environmental safety protocols in industrial use.