S-90843A180 8-32 x 3/4" Cleaned and Bagged 18-8 Stainless Steel Socket Head Screws for High Vacuum

Key Features & Benefits at a Glance

• Enhanced corrosion resistance through silver-plated 18-8 stainless steel construction, ideal for harsh environments
• Superior mechanical performance with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing applications
• Precise thread engagement with Class 3A fit ensuring tight tolerances and vibration resistance in critical assemblies
• High vacuum compatibility for use in sealed systems and specialized industrial equipment
• Secure hex drive installation using standard 9/64" tools, preventing cam-out and ensuring proper torque application
• Full thread coverage along the 3/4" length for maximum grip and uniform stress distribution
• Regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

Engineered for demanding applications, this 8-32 UNC thread socket head cap screw combines silver-plated 18-8 stainless steel with a Class 3A thread fit to address common industrial challenges like vibration loosening and corrosive degradation. The coarse thread spacing and fully threaded design provide rapid assembly and consistent clamping force in precision equipment, vacuum chambers, and machinery requiring high tensile strength. Its high vacuum rating makes it suitable for aerospace, semiconductor, and medical device manufacturing, where fastener integrity directly impacts system performance and safety.

Specification Summary & Compliance

This fastener maintains Class 3A thread fit per UNC standards with a 9/64" hex drive and right-hand thread direction. It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety compliance. Manufactured from 18-8 stainless steel with a silver-plated finish, it delivers consistent dimensional accuracy and meets industrial requirements for durability and chemical resistance.