S-95198A363 5/16"-24 x 3/4" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with integrated Buna-N O-ring that prevents fluid/gas leakage in demanding applications
• Exceptional corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments and washdown applications
• Precision thread engagement with Class 3A UNF fine threads ensuring reliable, vibration-resistant fastening in critical assemblies
• High-pressure capability withstands up to 1500 psi while maintaining seal integrity across temperature extremes (-40° to 225°F)
• Maximum torque transmission through 1/4" hex drive design that prevents tool slippage and damage during installation
• Proven mechanical strength with 100,000 psi tensile strength and Rockwell B85 hardness for heavy-duty industrial applications
• Global standard compliance meeting ASME B18.3, DIN 912, and ISO 4762 specifications for international project compatibility

Professional Applications & Engineering Value

This socket head cap screw with integrated Buna-N O-ring addresses critical sealing challenges in hydraulic systems, pneumatic equipment, and fluid processing applications. The 18-8 stainless steel construction provides excellent corrosion resistance while maintaining structural integrity under pressure fluctuations. The Class 3A UNF fine threads deliver superior engagement in thin-walled materials and vibration-prone environments, preventing loosening that could compromise system integrity. Engineered for high-pressure applications up to 1500 psi, this fastener eliminates the need for separate sealing components while offering reliable performance across a broad temperature range from -40° to 225°F. The combination of precision threading and sealing capability makes it ideal for OEM equipment, maintenance repairs, and industrial assemblies where leak prevention is critical.

Specification Summary & Compliance

This fastener features 5/16"-24 UNF Class 3A threads with fine thread spacing for precise engagement in engineering applications. Manufactured to ASME B18.3, DIN 912, and ISO 4762 dimensional standards ensuring global compatibility. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substance restrictions. Mechanical properties include 100,000 psi tensile strength and Rockwell B85 hardness, validated through standardized testing protocols.