S-95198A379 3/8"-16 x 1 1/2" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws
Sealing Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Superior sealing performance with integrated Buna-N rubber O-ring to prevent fluid and gas leaks in demanding applications
- Exceptional pressure resistance up to 1500 psi for reliable operation in high-pressure industrial systems
- Wide temperature compatibility from -40° to 225°F for stable performance across diverse environmental conditions
- Premium corrosion resistance thanks to 18-8 stainless steel construction for long service life in harsh environments
- Precise thread engagement with Class 3A UNC coarse threads ensuring secure fastening and vibration resistance
- High strength reliability with 100,000 psi tensile strength and Rockwell B85 hardness for heavy-duty applications
- Secure hex drive installation using standard 5/16" tools for consistent torque application and reduced stripping risk
Professional Applications & Engineering Value
This socket head cap screw delivers critical sealing functionality for industrial equipment where fluid containment is essential. The Buna-N rubber O-ring creates a reliable seal against oils, water, and compressed gases, while the 18-8 stainless steel construction provides excellent corrosion resistance in marine, chemical processing, and outdoor applications. The Class 3A UNC coarse threads offer superior engagement in tapped holes, reducing the risk of cross-threading during assembly. Engineered to withstand 1500 psi maximum pressure, this fastener is ideal for hydraulic systems, pneumatic equipment, pump housings, and pressure vessels where leak prevention is critical to operational safety and efficiency.
Specification Summary & Compliance
This 3/8"-16 x 1-1/2" socket head cap screw features precision Class 3A UNC coarse threads with full threading for maximum engagement. Manufactured to exacting standards including ASME B18.3, DIN 912, and ISO 4762 specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. With a maximum hole diameter of 0.397" and Rockwell B85 hardness, this fastener meets rigorous industrial requirements for dimensional accuracy and mechanical performance.
