S-92196A323 1/4"-28 x 7/8" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional Tensile Strength – Withstands up to 70,000 psi, providing reliable load-bearing capacity for demanding applications.
• Superior Corrosion Resistance – Crafted from 18-8 Stainless Steel, ensuring long-term durability in harsh or moist environments.
• Precision Fine Threads (Class 3A) – Delivers tighter fit and enhanced vibration resistance compared to coarse threads.
• High Hardness Rating (Rockwell B70) – Resists wear and deformation under high-torque assembly.
• Standard Hex Drive (3/16") – Allows for easy installation with common tools, reducing assembly time.
• Full Thread Engagement – Ensures maximum grip along the entire 7/8" length for secure fastening.
• Compliant with Industry Standards – Meets ASME B18.3 specifications and environmental regulations (RoHS 3, REACH).

Professional Applications & Engineering Value

This 1/4"-28 UNF Socket Head Cap Screw is engineered to address critical industrial challenges, such as vibration loosening and corrosion-induced failure. The 18-8 Stainless Steel construction offers excellent resistance to rust and chemicals, making it ideal for machinery, automotive, and marine environments. Its fine thread design and Class 3A thread fit provide superior clamping force and stability in high-stress assemblies. The right-hand threading and fully threaded body ensure consistent engagement, reducing the risk of joint failure. Whether used in precision equipment or heavy-duty frames, this fastener delivers reliable performance under extreme conditions.

Specification Summary & Compliance

This screw adheres to ASME B18.3 standards, with precise Class 3A thread tolerances for fine thread applications. It features a 1/4"-28 UNF thread size, 3/16" hex drive, and 7/8" length. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability.