S-91223A322 8-32 x 5/8" 316 Stainless Steel Ultra-Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial and marine environments
• Enhanced torque transmission through the 5/64" hex drive and ultra-low socket head profile for secure, reliable fastening
• High tensile strength of 70,000 psi and Rockwell B70 hardness ensure long-term durability under heavy loads
• Precise thread engagement with Class 2A UNC coarse threading for easy assembly and consistent performance
• Full thread coverage along the 5/8" length provides maximum grip and uniform stress distribution
• Strict dimensional tolerances on head diameter (±0.005") guarantee consistent fit and flush installation
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries

Professional Applications & Engineering Value

This 316 stainless steel socket head cap screw is engineered to address critical challenges in demanding applications where corrosion resistance and mechanical reliability are paramount. The UNC coarse thread with Class 2A fit ensures quick assembly and reduced cross-threading risks, while the ultra-low head profile and 5/64" hex drive enable high torque application in confined spaces. Ideal for marine equipment, chemical processing machinery, and outdoor industrial assemblies, it combats saltwater, chemicals, and extreme temperatures. The fully threaded design and 70,000 psi tensile strength provide robust clamping force, preventing loosening under vibration and extending service life in high-stress environments.

Specification Summary & Compliance

This socket head cap screw adheres to inch system dimensions with precise Class 2A thread fit per UNC standards, ensuring interchangeability and reliable performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for regulated industrial and international markets. Manufacturing specifications include a head diameter tolerance of -0.005" to 0.005" and full compliance with material and threading norms for consistent quality.