S-8077A711 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, which also reduces light reflection and provides a sleek appearance.
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under heavy loads.
• Precise alignment and smooth rotation with a Class 3A thread fit and standard shoulder, ensuring minimal play in assemblies.
• Easy installation and removal using a standard 3/32" hex drive and knurled head for improved grip and torque application.
• Coarse UNC threading for quick assembly and reduced cross-threading risks in various materials.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical failure. The 2-1/2" precision shoulder provides a stable pivot or spacer in machinery, ensuring accurate component positioning in applications like rotating assemblies, linkages, and bearing supports. The black oxide finish not only enhances corrosion resistance but also reduces galling and seizing in high-friction environments. With a Class 3A thread fit and UNC coarse thread, it offers reliable fastening in dynamic settings, from automotive to electronics, where vibration resistance and long-term durability are critical. The hex drive socket head allows for efficient installation in confined spaces, making it a versatile choice for maintenance and OEM projects requiring robust, corrosion-resistant shoulder screws.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a precise Class 3A fit for tight tolerances. Dimensions include a shoulder diameter of 3/16" (tolerance: -0.004" to -0.002") and length of 2-1/2" (tolerance: -0.005" to 0.005"), ensuring consistent performance. Manufactured from 316 stainless steel with a hardness of Rockwell B79, it meets industry specifications for strength and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and environmentally responsible use.