S-90608A319 1/4"-20 x 1/2" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial and marine environments
• Reliable high-pressure sealing up to 1500 psi with integrated Buna-N O-Ring, preventing fluid and gas leaks in critical assemblies
• Exceptional temperature tolerance from -40° to 225°F, ensuring consistent performance in extreme thermal conditions
• High-strength durability with 100,000 psi tensile strength and Rockwell B85 hardness for demanding mechanical applications
• Precise thread engagement with Class 3A UNC coarse threads, providing secure, vibration-resistant fastening
• Easy installation and removal using standard 3/16" hex drive, reducing assembly time and tooling requirements
• Full thread coverage along the entire 1/2" length, offering maximum adjustability and grip in various material thicknesses

Professional Applications & Engineering Value

This 316 stainless steel socket head cap screw delivers critical engineering solutions where sealing integrity and corrosion resistance are paramount. The integrated Buna-N rubber O-Ring creates a dependable seal in hydraulic systems, pneumatic equipment, and fluid handling applications, eliminating leakage issues that compromise system efficiency. The Class 3A UNC coarse threads ensure rapid assembly with superior thread engagement, while the fully threaded design provides consistent clamping force across varying material depths. Engineered for high-pressure environments up to 1500 psi and extreme temperature fluctuations, this fastener maintains reliability in manufacturing equipment, automotive systems, and chemical processing installations where failure is not an option.

Specification Summary & Compliance

Manufactured to precision thread standards with Class 3A UNC thread fit and 1/4"-20 coarse thread spacing. Complies with ASME B18.3, DIN 912, and ISO 4762 specifications for dimensional accuracy and performance. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards. Features standard socket head profile with 3/16" hex drive and 3/8" head diameter for consistent tool engagement across industrial applications.