S-91306A337 8-32 x 1/2" ASTM F835 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Zinc-plated alloy steel construction provides excellent corrosion resistance, extending service life in harsh environments and minimizing maintenance needs.
• Class 3A thread fit offers superior precision and tighter tolerances for secure, vibration-resistant assemblies in critical machinery.
• Fully threaded UNC coarse design enables faster installation and stronger holding power in a wide range of materials, improving assembly efficiency.
• Hex drive (3/32") with rounded button head allows for easy tool access and a clean, low-profile finish, enhancing both usability and aesthetics.
• Rockwell C39 hardness ensures high durability and resistance to wear, maintaining thread integrity through repeated use.
• Compliance with ASME B18.3, ASTM F835, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations, ensuring safe, reliable sourcing for B2B buyers.

Professional Applications & Engineering Value

These 8-32 UNC coarse thread screws are engineered to address common industrial challenges, such as vibration loosening and corrosion in demanding environments. The zinc-plated alloy steel material provides a robust barrier against moisture and chemicals, making them ideal for outdoor equipment, automotive assemblies, and machinery exposed to harsh conditions. The fully threaded design with Class 3A fit ensures maximum grip and load distribution, reducing the risk of joint failure in high-stress applications. Paired with a hex drive and rounded button head, these screws offer quick, secure fastening in tight spaces, streamlining maintenance and assembly processes for engineers and technicians.

Specification Summary & Compliance

This product features precise Class 3A thread fit per UNC standards, with dimensions including a 1/2" length, 0.312" head diameter, and coarse thread spacing. It is manufactured in compliance with ASME B18.3 and ASTM F835 specifications, ensuring consistent quality and performance. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, supporting sustainable and safe industrial practices.