S-91223A321 8-32 x 1/2" 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 environments and extended service life.
• High-strength performance offering 70,000 psi tensile strength and Rockwell B70 hardness for reliable, vibration-resistant fastening.
• Precise, easy installation enabled by the ultra-low socket head profile and 5/64" hex drive, allowing for efficient assembly in confined spaces.
• Consistent thread engagement with Class 2A thread fit and 8-32 UNC coarse threads, ensuring quick assembly and reduced cross-threading risk.
• Strict dimensional control featuring a head diameter tolerance of ±0.005", guaranteeing a flush fit and uniform appearance in precision applications.
• Full regulatory compliance with RoHS 3 and REACH, making it safe for use in regulated industries and global markets.
• Versatile fully threaded design providing maximum grip and adjustability across the entire 1/2" length for diverse mounting needs.

Professional Applications & Engineering Value

This 316 Stainless Steel Socket Head Cap Screw is engineered to address critical challenges in industrial settings, such as corrosion in marine, chemical, or outdoor applications. The ultra-low profile head and UNC coarse threads facilitate rapid installation and disassembly, even in tight spaces, reducing labor time and tool wear. Its 70,000 psi tensile strength and consistent Class 2A thread fit ensure that fasteners remain secure under dynamic loads and vibrations, preventing loosening in machinery, automotive, and electronics assemblies. By combining precision head diameter tolerance with a fully threaded rod design, it offers reliable clamping force and alignment, making it a top choice for OEMs and maintenance teams seeking durable, corrosion-resistant fasteners that meet stringent industry standards.

Specification Summary & Compliance

This screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. Key specifications include an 8-32 thread size, 1/2" length, and ultra-low socket head profile. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for industrial use.