S-95198A376 3/8"-16 x 1 1/8" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated Buna-N rubber O-ring provides reliable fluid and gas sealing up to 1500 psi, preventing leaks in pressurized applications.
• Exceptional Corrosion Resistance: Made from 18-8 Stainless Steel, offering excellent durability in harsh environments and resistance to rust and oxidation.
• High Tensile Strength & Durability: Withstands 100,000 psi tensile stress and Rockwell B85 hardness for reliable performance under heavy loads and vibration.
• Precision Thread Fit: Class 3A UNC coarse threads ensure tight, secure fastening with minimal risk of stripping or cross-threading in industrial assemblies.
• Wide Temperature Compatibility: O-ring maintains sealing integrity across a broad range from -40°F to 225°F, suitable for varied operating conditions.
• Standard Socket Drive Design: Hex socket head allows for high-torque installation with standard tools, facilitating quick and secure assembly in confined spaces.
• Broad Regulatory Compliance: Meets ASME B18.3, DIN 912, and ISO 4762 standards, ensuring consistent quality and interchangeability in global markets.

Professional Applications & Engineering Value

This Socket Head Cap Screw is engineered to address critical sealing and strength challenges in demanding industrial environments. The 18-8 Stainless Steel construction provides inherent corrosion resistance, making it ideal for applications in chemical processing, marine equipment, and food machinery where exposure to moisture and corrosive agents is common. The integrated Buna-N rubber O-ring creates a reliable seal that prevents fluid and gas leakage under pressures up to 1500 psi, solving common sealing failures in hydraulic systems, pneumatic controls, and pump assemblies. The Class 3A thread fit with UNC coarse threading ensures precise engagement with mating components, reducing installation time and preventing thread damage in high-vibration settings. These features combine to deliver a fastener that maintains integrity in critical joints while meeting international engineering standards for reliability and safety.

Specification Summary & Compliance

This socket head cap screw features precise 3/8"-16 UNC coarse threads with Class 3A fit for superior thread engagement and dimensional accuracy. Manufacturing complies with ASME B18.3, DIN 912, and ISO 4762 standards ensuring consistent quality and performance. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for hazardous substance restrictions.