S-90318A630 6-32 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.
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and reduces the risk of fastener failure.
• Precise shoulder fit with tight tolerances allows for accurate alignment in assemblies, minimizing play and improving component stability.
• Class 2A thread fit with UNC coarse threads provides easy assembly and disassembly while maintaining secure fastening in various applications.
• Socket head hex drive design offers efficient installation with standard tools, reducing assembly time and improving workspace accessibility.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global standards for restricted substances.
• Rockwell B70 hardness enhances durability and wear resistance, supporting long-term use in demanding mechanical systems.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision assemblies, such as misalignment and corrosion-induced failures. The ultra-low socket head profile and hex drive enable compact installations in confined spaces, while the coarse UNC threads and Class 2A fit ensure quick, secure fastening without cross-threading. The precise shoulder diameter and length provide stable pivoting or spacing in machinery, automotive, and electronics applications, reducing vibration and component wear. Made from corrosion-resistant 316 stainless steel, it excels in moist or chemical-exposed environments, offering reliable performance and reducing maintenance costs for industrial operators.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. Key specifications include a shoulder diameter of 5/32" with tight tolerance (-0.001" to 0") and shoulder length of 3/16" (0" to 0.002" tolerance), ensuring precise assembly. The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free from hazardous substances and suitable for global industrial use.