S-90600A152 5/16"-18 x 1 1/4" ASME B18.3 Stainless Steel Button Head Torx Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and passivated finish, ideal for harsh industrial environments
• Enhanced torque transmission and reduced cam-out thanks to the T40 Torx drive design for secure fastening
• High tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibrations
• Precise Class 3A thread fit provides excellent engagement and minimizes the risk of stripping
• Low-profile rounded head offers a smooth finish that reduces snagging and improves safety
• Full threading with UNC coarse spacing allows for faster installation and strong holding power
• Compliance with ASME B18.3 and environmental standards guarantees quality and regulatory adherence for global use

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these 5/16"-18 x 1 1/4" T40 Torx rounded head screws deliver exceptional reliability in machinery assembly, automotive components, and structural frameworks. The 18-8 stainless steel construction, combined with a passivated finish, effectively combats corrosion and extends service life in humid or chemical-exposed environments. Featuring a Class 3A thread fit and UNC coarse threading, these screws ensure quick, secure fastening with minimal effort, reducing installation time and maintenance costs. The T40 Torx drive enhances torque control, preventing slippage and damage to the fastener head, which is critical for high-stress applications. Ideal for heavy-duty fastening where vibration resistance and durability are paramount, these screws meet rigorous ASME B18.3 specifications, providing peace of mind for engineers and procurement specialists.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and UNC coarse thread spacing (5/16"-18) to ensure compatibility with common industrial components. Manufactured in compliance with ASME B18.3, it also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility. The fully threaded design and passivated finish further support consistent performance and corrosion resistance in varied applications.