S-95198A403 1/2"-13 x 1 1/4" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated Buna-N O-ring provides reliable sealing up to 1500 psi and withstands temperatures from -40° to 225° F, preventing leaks in demanding industrial applications.
• Exceptional Corrosion Resistance: Made from 18-8 Stainless Steel, offering excellent durability and resistance to rust and corrosion in harsh environments.
• High Tensile Strength & Hardness: With 100,000 psi tensile strength and Rockwell B85 hardness, ensuring reliable load-bearing capacity and resistance to deformation under stress.
• Precision Thread Fit: Class 3A thread fit and UNC coarse threads enable easy installation, secure fastening, and reduced risk of cross-threading in high-vibration settings.
• Versatile Socket Head Design: Standard socket head with 3/8" hex drive allows for high-torque installation in confined spaces, improving assembly efficiency.
• Broad Industry Compliance: Meets ASME B18.3, DIN 912, and ISO 4762 standards, ensuring interchangeability and reliability in global engineering projects.
• Environmental & Safety Compliance: RoHS 3 and REACH compliant, making it safe for use in regulated industries without hazardous substances.

Professional Applications & Engineering Value

This socket head cap screw is engineered to address critical sealing and durability challenges in industrial applications. The 18-8 stainless steel construction provides robust corrosion resistance, making it ideal for machinery, automotive, and fluid handling systems exposed to moisture, chemicals, or extreme temperatures. The integrated Buna-N rubber O-ring ensures a tight seal against high-pressure fluids (up to 1500 psi), preventing leaks in hydraulic systems, pumps, and pressurized enclosures. With a Class 3A thread fit and UNC coarse threads, it offers quick assembly and reliable performance in high-vibration environments, reducing maintenance downtime. Fully threaded for maximum grip, this fastener is a trusted solution for OEMs and maintenance teams requiring precision, compliance with ASME B18.3, DIN 912, and ISO 4762 standards, and long-term reliability.

Specification Summary & Compliance

This product features precise Class 3A thread fit with 1/2"-13 UNC coarse threads, ensuring accurate engagement and consistent performance. It adheres to key manufacturing standards including ASME B18.3, DIN 912, and ISO 4762, guaranteeing dimensional accuracy and interoperability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety requirements for global supply chains.