S-90843A140 10-32 x 1/2" Cleaned and Bagged 18-8 Stainless Steel Socket Head Screws for High Vacuum

Key Features & Benefits at a Glance

• Superior corrosion resistance with silver-plated 18-8 stainless steel construction, ideal for harsh environments and preventing galvanic corrosion.
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under high stress.
• Precise thread engagement with Class 3A fine UNF threads ensuring tight, secure fits and reducing the risk of loosening in vibration-prone applications.
• High vacuum compatibility suitable for vacuum systems and cleanroom environments where outgassing and contamination must be minimized.
• Easy installation and removal using a standard 5/32" hex drive, providing a secure grip and reducing the risk of tool slippage and damage.
• Full thread coverage along the 1/2" length for maximum holding power and flexibility in various assembly depths.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.

Professional Applications & Engineering Value

This 10-32 UNF socket head cap screw is engineered to address critical challenges in precision assemblies, such as in aerospace, medical devices, and electronics. The silver-plated 18-8 stainless steel provides excellent corrosion resistance, essential for components exposed to moisture or chemicals, while the Class 3A fine thread ensures superior clamping force and vibration resistance. Its high vacuum rating makes it ideal for vacuum chambers and scientific instruments, where leak-tight integrity is paramount. The combination of 70,000 psi tensile strength and Rockwell B70 hardness guarantees durability in high-stress applications, reducing maintenance and replacement costs. These features make it a reliable choice for industries demanding tight tolerances, long service life, and regulatory compliance.

Specification Summary & Compliance

This screw adheres to UNF fine thread standards with a Class 3A thread fit for precise, interference-free assembly. Dimensions include a 1/2" length, 5/32" hex drive, and standard socket head profile. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for industrial use.