S-95198A205 3/8"-16 x 1/2" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated silicone O-ring creates a reliable seal capable of withstanding pressures up to 1500 psi, preventing leaks in critical applications.
• Exceptional Temperature Resistance: O-ring maintains integrity across extreme temperatures from -80° to 400° F, ensuring consistent performance in harsh environments.
• High-Strength Construction: 18-8 stainless steel provides 100,000 psi tensile strength and Rockwell B85 hardness for maximum durability and corrosion resistance.
• Precision Thread Engagement: Class 3A UNC coarse threads ensure secure, vibration-resistant fastening with superior load distribution.
• Optimized Drive System: 5/16" hex socket drive allows for high-torque installation and removal without stripping, even in confined spaces.
• Industry Standard Compliance: Meets ASME B18.3, DIN 912, and ISO 4762 specifications for guaranteed interchangeability and quality assurance.
• Environmental Responsibility: RoHS 3 and REACH compliant construction ensures regulatory compliance for global industrial applications.

Professional Applications & Engineering Value

This socket head cap screw with integrated silicone O-ring seal addresses critical sealing challenges in high-pressure industrial systems. The 18-8 stainless steel construction combined with Class 3A UNC threads provides exceptional corrosion resistance and precise thread engagement, preventing fluid and gas leaks in hydraulic systems, pneumatic equipment, and processing machinery. The fully threaded design ensures maximum grip length while the standard socket head profile with 5/16" hex drive facilitates installation in tight spaces. Engineered to maintain seal integrity under 1500 psi maximum pressure and extreme temperature fluctuations from -80° to 400°F, this fastener delivers reliable performance in automotive, aerospace, and chemical processing applications where failure is not an option.

Specification Summary & Compliance

This 3/8"-16 UNC thread socket head cap screw features Class 3A thread fit precision with coarse thread spacing, ensuring optimal engagement and load distribution. Manufactured to ASME B18.3, DIN 912, and ISO 4762 standards for dimensional accuracy and performance reliability. The assembly is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring strict material compliance.