S-92423A149 5/16"-18 x 2" ASME B18.3, NAS1352N5-32, SAE AMS5731, SAE AMS5737 High-Strength A286 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional high-temperature performance with A286 stainless steel construction, maintaining structural integrity in demanding thermal environments.
• Superior tensile and yield strength (160,000 psi tensile, 120,000 psi yield) ensures reliable load-bearing capacity and resistance to deformation under stress.
• Enhanced corrosion resistance through passivated finish, prolonging service life in harsh industrial or outdoor settings.
• Precise Class 3A thread fit provides secure, vibration-resistant fastening with minimal risk of loosening in critical assemblies.
• Optimized drive engagement with 1/4" hex socket design for efficient installation and high torque application without stripping.
• Comprehensive standards compliance including ASME B18.3, NAS1352N5-32, and SAE AMS5731/5737 for guaranteed interchangeability and quality assurance.
• Environmental regulation adherence with RoHS 3 and REACH compliance, ensuring safe use in regulated industries and global markets.

Professional Applications & Engineering Value

This A286 stainless steel socket head cap screw delivers critical performance in aerospace, automotive, and heavy machinery applications where high tensile strength and heat resistance are paramount. The passivated finish combats corrosive elements in chemical processing or marine environments, while the Class 3A UNRC coarse thread ensures rapid assembly and secure clamping force in high-vibration systems. Engineered with partial threading and standard socket head profile, it provides optimal shear strength and streamlined installation in confined spaces. These industrial fasteners meet rigorous ASME B18.3 and NAS1352N5-32 specifications, making them ideal for structural components, engine mounts, and precision equipment requiring 160,000 psi tensile strength and consistent reliability under extreme operational stress.

Specification Summary & Compliance

Manufactured to exact Class 3A thread fit tolerances with 5/16"-18 UNRC coarse threads and 1.38" minimum thread length. Complies with ASME B18.3 dimensional standards and material specifications per SAE AMS5731/5737. Certified RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant for hazardous substance restrictions. Heat-treated to Rockwell C33 hardness with verified 120,000 psi yield strength and 160,000 psi tensile strength.