S-95198A326 10-32 x 7/8" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with integrated Buna-N rubber O-ring, effectively preventing leaks in high-pressure environments up to 1500 psi.
• Exceptional corrosion resistance due to 18-8 Stainless Steel construction, ensuring long-term reliability in harsh or humid conditions.
• Precise thread engagement with Class 3A fit for secure, vibration-resistant fastening in critical assemblies.
• High tensile strength of 100,000 psi provides robust load-bearing capacity, reducing the risk of fastener failure.
• Wide temperature tolerance from -40° to 225°F, maintaining sealing integrity across diverse operating environments.
• Standard hex drive (5/32") allows for easy installation and removal with common tools, minimizing assembly time.
• Full threading ensures consistent clamping force along the entire 7/8" length for uniform pressure distribution.

Professional Applications & Engineering Value

This 10-32 UNF socket head cap screw is engineered to address critical sealing challenges in precision industrial applications. The 18-8 Stainless Steel material offers excellent resistance to oxidation and chemical exposure, while the Class 3A thread fit guarantees tight tolerances for vibration-prone machinery. The integrated Buna-N rubber O-ring creates a reliable seal against fluids and gases, making it ideal for hydraulic systems, pneumatic equipment, and pressurized enclosures where leak prevention is paramount. Its fine UNF thread and fully threaded design ensure maximum thread contact, enhancing joint stability in high-stress environments such as automotive assemblies, industrial pumps, and valve systems. This combination of materials and design solves common issues of seal degradation and fastener loosening under dynamic loads.

Specification Summary & Compliance

This screw features a 10-32 UNF fine thread with Class 3A thread fit for precise dimensional accuracy. It complies with ASME B18.3, DIN 912, and ISO 4762 standards, ensuring interchangeability and consistent performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for hazardous substances.