S-91306A341 10-24 x 3/8" ASTM F835 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional holding power with 120,000 psi tensile strength and Rockwell C39 hardness for reliable performance in demanding applications
• Superior corrosion resistance through zinc plating, extending service life in industrial environments
• Precise thread engagement with Class 3A fit and UNC coarse threads ensuring secure fastening and vibration resistance
• Easy installation and removal with 1/8" hex drive and rounded button head design for accessible tool engagement
• Full threading coverage along the 3/8" length provides maximum grip and load distribution
• Right-hand thread direction for standard installation procedures and compatibility with common assembly methods
• Regulatory compliance assurance meeting ASME B18.3 and ASTM F835 standards for quality and performance reliability

Professional Applications & Engineering Value

These 10-24 UNC thread screws with zinc-plated alloy steel construction deliver critical performance advantages for industrial assembly applications. The combination of Class 3A thread fit and coarse threading provides excellent vibration resistance in machinery, automotive components, and electrical enclosures where loosening under dynamic loads is a concern. The rounded button head profile with hex drive allows for flush mounting while maintaining easy access for installation and maintenance. With full threading across the entire 3/8" length, these fasteners distribute clamping force evenly, preventing stress concentration points that can lead to material fatigue. The 120,000 psi tensile strength ensures reliable performance in high-stress applications, making them ideal for structural assemblies, manufacturing equipment, and heavy-duty industrial fixtures requiring durable fastening solutions.

Specification Summary & Compliance

These rounded head screws feature precise Class 3A thread fit with UNC coarse threads (10-24 size) and are manufactured to exacting dimensional standards. The fasteners comply with ASME B18.3 and ASTM F835 specifications, ensuring consistent quality and performance. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, making them suitable for regulated industrial applications. The right-hand thread direction and fully threaded design provide standardized installation across various assembly operations.