S-8077A729 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Enhanced durability and wear resistance from the black oxide finish, which also reduces light reflection and provides a sleek appearance.
• High mechanical strength offering 70,000 psi tensile strength and 35,000 psi shear strength for reliable performance under heavy loads.
• Precise thread engagement with Class 3A fit, ensuring tight tolerances and reduced risk of loosening in dynamic applications.
• Easy installation and removal using a standard 3/32" hex drive and knurled head for improved grip and torque application.
• Versatile coarse UNC threading for quick assembly and better performance in materials prone to stripping or where vibration is a concern.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address common industrial challenges such as corrosion, high stress, and precise alignment needs. The black oxide finish not only enhances corrosion resistance but also minimizes galling and seizing in high-temperature or moist conditions. With a Class 3A thread fit and UNC coarse threading, it provides secure fastening in machinery, automotive assemblies, and electronic enclosures where vibration resistance is critical. The shoulder design allows for accurate pivot points and spacing in linkages, bearings, and rotating components, reducing wear and maintenance downtime. Its high tensile and shear strength ensures reliability in demanding applications, from heavy equipment to precision instruments, making it a trusted choice for engineers seeking longevity and performance.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a precise Class 3A thread fit for optimal engagement. Dimensions include a thread size of 8-32, shoulder diameter of 3/16" with tight tolerances, and a shoulder length of 1 1/8". It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. Manufactured to deliver consistent performance, it is suitable for applications requiring high strength and environmental responsibility.