S-90608A323 1/4"-20 x 1" ASME B18.3, DIN 912, ISO 4762 Sealing 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.
• Reliable high-pressure sealing up to 1500 psi, preventing leaks in critical fluid and gas systems with the integrated Buna-N rubber O-ring.
• Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B85 hardness, ensuring high load-bearing capacity and resistance to stripping.
• Precise and secure fastening due to the Class 3A thread fit, providing tighter tolerances for improved assembly reliability in demanding applications.
• Wide temperature compatibility from -40° to 225° F, allowing consistent performance in both extreme cold and moderate heat conditions.
• Easy installation and high torque application with the standard hex socket (3/16" drive) and socket head profile, facilitating efficient maintenance and assembly.
• Full regulatory compliance with major international standards (ASME B18.3, DIN 912, ISO 4762) and environmental regulations (RoHS 3, REACH), ensuring global acceptability and safety.

Professional Applications & Engineering Value

This 316 Stainless Steel Socket Head Cap Screw is engineered to address critical challenges in industrial sealing and high-stress fastening. The combination of a Buna-N rubber O-ring and coarse UNC thread ensures a robust seal against fluids and gases, making it ideal for hydraulic systems, pneumatic equipment, and machinery exposed to variable pressures. The fully threaded design and Class 3A thread fit provide uniform clamping force and vibration resistance, reducing the risk of loosening in dynamic environments. Its high tensile strength and corrosion-resistant material make it suitable for chemical processing, marine applications, and outdoor installations, where durability and reliability are paramount for minimizing downtime and maintenance costs.

Specification Summary & Compliance

This screw features precise Class 3A thread fit and UNC coarse thread spacing for accurate engagement. It conforms to ASME B18.3, DIN 912, and ISO 4762 manufacturing standards, ensuring dimensional consistency and interoperability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guaranteeing the absence of hazardous substances and supporting sustainable procurement practices.