S-97763A365 1/2"-13 x 1" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh environments and reducing replacement frequency
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration, minimizing failure risks
• Class 3A thread fit provides precise, secure fastening with reduced risk of cross-threading in critical assemblies
• Coarse UNC threading allows for quicker installation and better debris resistance in industrial settings
• Hex drive (5/16") design offers high torque application capability and prevents stripping during installation
• Fully threaded shank ensures maximum grip and load distribution along the entire length
• Rockwell B55 hardness maintains thread integrity and durability against wear over repeated use

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these Black-Oxide 18-8 Stainless Steel rounded head screws address common challenges like corrosion, high stress, and assembly efficiency. The 1/2"-13 UNC coarse thread and Class 3A fit provide rapid, secure fastening in metals and composites, reducing installation time while resisting loosening under vibration. The hex drive enables high-torque applications without cam-out, making these fully threaded screws ideal for heavy machinery, structural frameworks, and outdoor equipment where corrosion resistance and 70,000 psi tensile strength are critical for long-term reliability and reduced maintenance cycles.

Specification Summary & Compliance

This screw meets ASME B18.3 specifications for dimensional accuracy and performance, with Class 3A thread fit ensuring tight tolerances. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental and safety standards. The UNC coarse thread and inch measurements adhere to industrial norms for consistent compatibility across applications.