S-95198A268 2-56 x 1" 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 ensures reliable fluid and gas containment under pressures up to 1500 psi, preventing leaks in critical applications.
• Exceptional Corrosion Resistance: Made from 18-8 stainless steel, offering excellent durability in harsh environments and reducing maintenance costs.
• High Tensile Strength: Withstands up to 100,000 psi tensile load, providing secure fastening for heavy-duty industrial assemblies.
• Wide Temperature Tolerance: O-ring functions effectively from -40° to 225°F, ensuring performance stability in extreme thermal conditions.
• Precision Thread Fit: Class 3A thread fit and UNC coarse threads enable easy installation and reliable engagement in high-vibration settings.
• Standardized Socket Drive: Hex drive (5/64") and standard socket head profile allow for consistent torque application with common tools, minimizing assembly errors.
• Regulatory Compliance: Meets ASME B18.3, DIN 912, and ISO 4762 standards, ensuring interchangeability and quality assurance in global markets.

Professional Applications & Engineering Value

This socket head cap screw is engineered to address common industrial challenges, such as fluid leakage and component loosening under dynamic loads. The 18-8 stainless steel construction provides robust resistance to corrosion and wear, ideal for machinery, automotive, and chemical processing equipment. Its partially threaded design with UNC coarse threads ensures quick assembly and strong holding power, while the integrated Buna-N rubber O-ring creates an effective seal against oils, water, and gases. This combination makes it a reliable choice for high-pressure applications up to 1500 psi, reducing downtime and enhancing operational safety in demanding environments.

Specification Summary & Compliance

The screw features precise Class 3A thread fit and adheres to UNC thread standards for consistent performance. It complies with ASME B18.3, DIN 912, and ISO 4762 manufacturing specifications, ensuring dimensional accuracy and reliability. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial use.