S-95198A307 8-32 x 1 1/2" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with integrated Buna-N rubber O-ring that maintains integrity across temperatures from -40° to 225°F
• Exceptional corrosion resistance through 18-8 stainless steel construction with Rockwell B85 hardness for long service life
• High-pressure capability supporting up to 1500 psi maximum pressure for demanding industrial applications
• Precision thread engagement with Class 3A thread fit ensuring reliable fastening in critical assemblies
• Optimized drive efficiency featuring 9/64" hex socket drive for secure tool engagement and reduced stripping risk
• Versatile partial threading allowing both secure clamping and clearance functions in single fastener design
• Regulatory compliance assurance meeting ASME B18.3, DIN 912, ISO 4762 standards plus RoHS 3 and REACH requirements

Professional Applications & Engineering Value

These 8-32 UNC thread socket head cap screws deliver critical sealing solutions for industrial equipment exposed to fluids, gases, and environmental contaminants. The 18-8 stainless steel construction provides excellent corrosion resistance while maintaining 100,000 psi tensile strength for structural integrity. The integrated Buna-N rubber O-ring creates reliable seals in hydraulic systems, pneumatic components, and processing equipment where pressure containment is essential. The Class 3A thread fit ensures precise engagement in tapped holes, reducing the risk of cross-threading in automated assembly operations. These partially threaded screws offer both secure fastening in the threaded section and clearance through the unthreaded portion, making them ideal for mounting brackets, machinery guards, and fluid handling systems requiring both clamping force and alignment accuracy.

Specification Summary & Compliance

This socket head cap screw features 8-32 UNC coarse threads with Class 3A thread fit for precision applications. The 1-1/2" length includes 3/4" minimum thread length with partial threading configuration. Manufacturing complies with ASME B18.3, DIN 912, and ISO 4762 standards for dimensional consistency. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental regulations for hazardous substances.