S-96738A061 5/16"-24 x 1 1/2" ASME B18.3 Vibration-Resistant Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Vibration-proof performance with permanent nylon patch thread locker that maintains integrity from -70° to 250°F
• Superior corrosion resistance through 18-8 stainless steel construction with Rockwell B85 hardness
• Reliable sealing capability with integrated Buna-N rubber O-ring rated for pressures up to 1500 psi
• Precision thread engagement with Class 3A UNF fine threads ensuring secure fastening in critical applications
• Exceptional strength delivering 100,000 psi tensile strength for heavy-duty industrial use
• Standard hex drive compatibility with 1/4" drive size for easy installation and removal
• Full regulatory compliance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 18-8 stainless steel socket head cap screws combine multiple sealing and locking technologies to solve critical fastening challenges. The nylon patch locking mechanism provides permanent vibration resistance without compromising the Class 3A UNF fine threads, ensuring maintained clamp load in high-vibration machinery. The integrated Buna-N rubber O-ring creates a reliable seal against fluids and gases up to 1500 psi, making these fasteners ideal for hydraulic systems, pneumatic equipment, and precision assemblies where leak prevention is paramount. The combination of 100,000 psi tensile strength and corrosion-resistant stainless steel construction delivers long-term reliability in harsh operating conditions while the standardized hex socket drive facilitates efficient installation in confined spaces.

Specification Summary & Compliance

These socket head cap screws feature precision 5/16"-24 UNF Class 3A threads with fine thread spacing and right-hand thread direction. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance. The fasteners are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial applications. The 1-1/2" length and fully threaded design provide consistent engagement while the standard socket head profile maintains compatibility with industry-standard installation tools.