S-91306A272 10-32 x 5/16" 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 demanding applications, reducing the risk of fastener failure.
• Class 3A thread fit provides tighter tolerances for superior vibration resistance and secure, precise assembly in critical machinery.
• Zinc-plated alloy steel construction offers excellent corrosion resistance, extending service life in harsh industrial environments.
• Fully threaded design allows for maximum grip and load distribution along the entire fastener length, enhancing joint integrity.
• 1/8" hex drive and rounded button head facilitate easy installation and a low-profile finish, ideal for spaces with clearance constraints.
• Rockwell C39 hardness ensures high durability and wear resistance, maintaining thread integrity through repeated use.
• Compliance with ASME B18.3 and ASTM F835 guarantees consistent quality and interoperability in professional assemblies.

Professional Applications & Engineering Value

Engineered for precision and endurance, these 10-32 UNF Class 3A zinc-plated alloy steel rounded head screws address common industrial challenges such as vibration loosening and corrosion. The fine UNF thread and Class 3A fit provide a secure, tight connection that resists back-off in high-stress environments like automotive assemblies, machinery, and electronic enclosures. Made from alloy steel with a zinc plating surface finish, they offer robust protection against rust, ensuring long-term reliability in outdoor or humid conditions. The rounded button head and hex drive allow for straightforward installation with standard tools, reducing assembly time while maintaining a sleek profile. Ideal for applications requiring high tensile strength and compliance with rigorous standards, these screws deliver consistent performance in industrial fastening scenarios.

Specification Summary & Compliance

This screw features precise Class 3A thread fit per UNF standards, ensuring accurate engagement and high vibration resistance. Dimensions include a 10-32 thread size, 5/16" length, and 1/8" hex drive, manufactured to meet ASME B18.3 and ASTM F835 specifications for reliability. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for industrial use.