S-90600A137 3/8"-16 x 3/4" ASME B18.3 Stainless Steel Button Head Torx Screws

Key Features & Benefits at a Glance

• Superior torque transmission and stripping resistance with the T45 Torx drive, ensuring secure installation and reduced tool wear in repetitive assembly.
• Exceptional corrosion resistance and durability thanks to 18-8 Stainless Steel construction and passivated finish, ideal for harsh environments.
• Precise and reliable thread engagement with Class 3A thread fit, minimizing the risk of cross-threading and ensuring consistent clamping force.
• High tensile strength of 60,000 PSI and Rockwell B55 hardness for dependable performance under heavy loads and vibration.
• Fully threaded design provides maximum grip and holding power along the entire length for versatile applications.
• Low-profile rounded button head offers a smooth, finished appearance while reducing snagging risks in assembled products.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety, quality, and environmental responsibility.

Professional Applications & Engineering Value

This 3/8"-16 UNC T45 Torx Rounded Head Screw in 18-8 Stainless Steel is engineered to address critical industrial challenges such as corrosion, high stress, and assembly efficiency. The passivated finish enhances the natural corrosion resistance of stainless steel, making it suitable for outdoor equipment, marine applications, and chemical processing environments where moisture and chemicals are present. The T45 Torx drive delivers higher torque transmission compared to traditional drives, reducing cam-out and enabling faster, more reliable installations in automated or manual settings. With a coarse UNC thread and Class 3A fit, it ensures quick alignment and secure fastening in metals and plastics, minimizing production downtime. Fully threaded for uniform load distribution, this screw is ideal for machinery, automotive assemblies, and structural frameworks requiring high tensile strength and long-term reliability.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC coarse thread with Class 3A thread fit for precise dimensional accuracy and consistent performance. Manufactured in compliance with ASME B18.3 standards, it ensures interchangeability and reliability in industrial applications. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for hazardous substances. Additional specifications include a right-hand thread direction, fully threaded length of 3/4", and a rounded button head profile, all designed to meet rigorous engineering requirements.