S-96738A063 3/8"-16 x 7/8" ASME B18.3 Vibration-Resistant Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with Nylon Patch thread locker prevents loosening under dynamic loads, ensuring long-term assembly integrity.
• Exceptional corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh industrial environments and outdoor applications.
• High tensile strength of 100,000 psi provides reliable performance in heavy-duty mechanical assemblies and high-stress applications.
• Precise Class 3A thread fit offers superior engagement and alignment, reducing the risk of cross-threading and improving installation efficiency.
• Temperature resilience with thread locker operating from -70° to 250°F and Buna-N O-ring from -40° to 225°F, suitable for varied thermal conditions.
• Secure sealing capability with integrated Buna-N rubber O-ring to prevent fluid and gas leakage in pressurized systems up to 1500 psi.
• Easy installation and removal using a standard 5/16" hex drive, allowing for high torque application in confined spaces.

Professional Applications & Engineering Value

This 18-8 Stainless Steel Socket Head Cap Screw is engineered to address critical challenges in industrial fastening, such as vibration-induced failure and environmental degradation. The Nylon Patch thread locker embedded in the UNC coarse threads ensures consistent clamping force in machinery subjected to constant motion, while the Buna-N rubber O-ring provides a reliable seal against contaminants and pressure fluctuations in hydraulic and pneumatic systems. With a Rockwell B85 hardness and 100,000 psi tensile strength, it withstands extreme mechanical stresses in automotive, aerospace, and manufacturing equipment, reducing maintenance downtime and enhancing operational safety. The combination of high-temperature resistance and full threading allows for versatile use in assemblies requiring adjustable positioning and durability.

Specification Summary & Compliance

This fastener features a 3/8"-16 UNC coarse thread with Class 3A fit for precise dimensional accuracy, ensuring reliable thread engagement. It is manufactured in compliance with ASME B18.3 standards and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial applications without hazardous substances.