S-91306A269 10-24 x 1/4" 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 tensile strength of 120,000 psi ensures reliable performance under heavy loads and vibration
• Class 3A thread fit provides tighter tolerances for secure, precise assembly in critical applications
• Rockwell C39 hardness offers excellent durability and resistance to wear and stripping
• Fully threaded design allows for maximum grip and uniform stress distribution along the entire length
• Hex drive (1/8") with rounded button head enables easy installation and a clean, low-profile finish
• Compliance with ASME B18.3, ASTM F835, RoHS 3, and REACH guarantees quality and environmental safety standards

Professional Applications & Engineering Value

These 10-24 UNC zinc-plated alloy steel rounded head screws are engineered to address common industrial challenges such as fastener failure due to corrosion, vibration loosening, and high-stress demands. The coarse thread spacing and Class 3A thread fit ensure quick, secure fastening in materials like metal and hard plastics, reducing assembly time and improving joint integrity. The zinc plating provides a protective barrier against moisture and chemicals, extending service life in applications like machinery, automotive assemblies, and outdoor equipment. With a rounded button head style and hex drive, they offer both aesthetic appeal and practical installation ease, making them a reliable choice for engineers seeking high-strength, corrosion-resistant fasteners that meet rigorous industry standards.

Specification Summary & Compliance

This product features precise Class 3A thread fit per UNC standards, with a thread size of 10-24 and coarse spacing for optimal engagement. Dimensions include a 1/4" length, 0.361" head diameter, and 1/8" hex drive. Manufacturing adheres to ASME B18.3 and ASTM F835 specifications, ensuring consistent quality and performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and suitability for global industrial use.