S-91306A414 3/8"-16 x 1/2" ASTM F835 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc-plated alloy steel construction, ideal for harsh industrial environments
• Superior load-bearing capacity with 120,000 psi tensile strength and Rockwell C39 hardness for heavy-duty applications
• Precise, reliable fastening ensured by Class 3A thread fit and fully threaded design, minimizing loosening risks
• Easy installation and removal with 7/32" hex drive and rounded button head, reducing assembly time
• Broad compatibility with UNC coarse thread (3/8"-16) and right-hand direction, fitting standard industrial equipment
• Regulatory peace of mind through compliance with ASME B18.3, ASTM F835, RoHS 3, and REACH standards
• Optimized head profile with 0.656" diameter and standard rounded design for secure, flush seating

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these 3/8"-16 UNC zinc-plated alloy steel rounded head screws deliver critical reliability where vibration resistance and structural integrity are paramount. The Class 3A thread fit and coarse threading provide superior grip in metals and plastics, preventing stripping under high stress. With a fully threaded design and hex drive, they enable quick, torque-efficient installation in machinery, automotive assemblies, and construction frameworks. The zinc plating combats corrosion in humid or chemical-exposed environments, while the rounded button head offers a low-profile, snag-resistant finish. Ideal for OEM and MRO applications, these screws address common failure points by combining high tensile strength with standardized dimensions for consistent performance.

Specification Summary & Compliance

This screw features precision UNC 3/8"-16 coarse threads with Class 3A fit for tight tolerances and optimal engagement. Manufacturing adheres to ASME B18.3 and ASTM F835 specifications, ensuring dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances. Key dimensions include a 1/2" length, 0.656" head diameter, and 7/32" hex drive, all consistent with industrial fastener standards for reliable interchangeability.