S-8077A532 5/8"-11 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and black oxide finish, ideal for harsh industrial environments.
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and mechanical stress.
• Precise Class 3A thread fit guarantees secure, vibration-resistant connections in critical assemblies.
• Knurled head with 3/8" hex drive provides excellent grip and torque application, reducing installation time.
• Long 2 1/2" shoulder length allows for accurate component alignment and smooth rotational movement.
• Compliance with ASME B18.3, RoHS 3, and REACH ensures quality, safety, and environmental standards are met.
• Coarse 5/8"-11 UNC thread offers quick assembly and disassembly, enhancing maintenance efficiency.

Professional Applications & Engineering Value

This 5/8"-11 UNC shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical failure. Made from 316 stainless steel with a black oxide finish, it provides exceptional resistance to chemicals and moisture, extending service life in demanding settings like machinery, automotive, and marine applications. The Class 3A thread fit and precise shoulder dimensions ensure minimal play and reliable positioning, reducing wear and maintenance costs. Ideal for use in pivots, guides, and rotating assemblies, this socket head shoulder screw delivers consistent performance where precision and durability are critical.

Specification Summary & Compliance

The screw features a Class 3A thread fit with UNC coarse threading for secure fastening, adhering to ASME B18.3 manufacturing standards. Dimensions include a shoulder diameter of 3/4" (tolerance: -0.004" to -0.002") and length of 2 1/2" (tolerance: -0.005" to 0.005"), ensuring high precision. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material integrity.