S-91306A266 8-32 x 7/16" ASTM F835 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating that protects against rust and extends service life in demanding environments
• Exceptional tensile strength of 120,000 psi ensures reliable performance under high-stress applications without failure
• Precise Class 3A thread fit delivers tighter tolerances for secure, vibration-resistant connections in critical assemblies
• Easy installation and removal with 3/32" hex drive design that prevents stripping and allows for high-torque application
• Full threading along the 7/16" length provides maximum grip and uniform load distribution across fastened materials
• Durable Rockwell C39 hardness maintains structural integrity and resists wear during repeated use
• Compliance with major industry standards including ASME B18.3 and ASTM F835 guarantees consistent quality and safety

Professional Applications & Engineering Value

These 8-32 UNC coarse thread screws are engineered with zinc-plated alloy steel to address common industrial challenges like corrosion and mechanical fatigue. The rounded button head and hex drive facilitate quick assembly in tight spaces, while the Class 3A thread fit ensures minimal backlash in precision equipment. Ideal for machinery, automotive, and electronics, they provide a robust fastening solution that withstands vibrations and heavy loads, reducing maintenance needs and enhancing operational reliability in industrial fasteners applications.

Specification Summary & Compliance

Manufactured to ASME B18.3 and ASTM F835 specifications, these screws feature precise UNC coarse threads with a Class 3A fit for accurate engagement. The 7/16" length and fully threaded design adhere to dimensional standards, while compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) ensures environmental safety and regulatory acceptance in global markets.