S-91306A719 3/8"-16 x 3/8" ASTM F835 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance through zinc-plated alloy steel construction, extending service life in demanding industrial environments
• Exceptional mechanical strength with 120,000 psi tensile strength and Rockwell C39 hardness for reliable performance under high-stress applications
• Precise thread engagement with Class 3A thread fit ensuring secure fastening and vibration resistance in critical assemblies
• Optimized drive efficiency featuring 7/32" hex drive for maximum torque transmission and reduced tool slippage
• Full-threaded design providing consistent holding power along the entire 3/8" length for uniform load distribution
• Standard-compliant reliability meeting ASME B18.3 and ASTM F835 specifications for consistent quality and interchangeability
• Environmental compliance with RoHS 3 and REACH regulations for safe use across global industrial markets

Professional Applications & Engineering Value

These 3/8"-16 UNC zinc-plated alloy steel rounded head screws deliver exceptional engineering value in industrial fastening applications where corrosion resistance and mechanical reliability are paramount. The coarse thread spacing combined with Class 3A thread fit ensures rapid installation and secure fastening in machinery, equipment assemblies, and structural frameworks. The button head profile with hex drive provides low-profile clearance while maintaining high torque capability, making them ideal for confined spaces in automotive, manufacturing, and construction applications. The fully threaded design maximizes grip length and distributes shear forces evenly, while the zinc plating creates a protective barrier against oxidation and environmental degradation, significantly extending maintenance intervals in harsh operating conditions.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 3A thread fit tolerance and UNC coarse thread specifications. These rounded head screws comply with ASME B18.3 and ASTM F835 manufacturing standards, ensuring consistent quality and performance. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest international requirements for hazardous substance restrictions and chemical safety in industrial components.