S-91263A524 8-32 x 1/2" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 130,000 psi ensures reliable fastening under high-stress conditions, reducing the risk of failure in demanding applications.
• Zinc-plated alloy steel construction provides superior corrosion resistance, extending the lifespan of your assemblies in harsh environments.
• Class 3A thread fit offers precise, tight-tolerance threading for secure, vibration-resistant connections that maintain integrity over time.
• Fully threaded design along the entire 1/2" length allows for maximum grip and holding power in a variety of material thicknesses.
• 82° countersink angle and standard flat head profile enable a flush, clean finish when installed, ideal for applications where a smooth surface is critical.
• Hex drive (3/32") facilitates easy installation with common tools, improving assembly efficiency and reducing stripping risks.
• Compliance with ASTM F835, RoHS 3, and REACH ensures the screw meets rigorous industry and environmental standards for safety and performance.

Professional Applications & Engineering Value

These 8-32 UNC flat head screws are engineered to address common industrial challenges such as vibration loosening and corrosion. Made from zinc-plated alloy steel, they provide a durable barrier against moisture and chemicals, making them ideal for machinery, electronics, and outdoor equipment. The coarse thread spacing and Class 3A thread fit ensure quick, secure fastening in materials like metal and plastic, reducing assembly time while maintaining high tensile strength. The fully threaded design and 82° countersink angle allow for versatile use in countersunk holes, providing a sleek finish that minimizes protrusions in precision applications.

Specification Summary & Compliance

This screw features a right-hand thread with UNC coarse thread spacing and a precise Class 3A thread fit for consistent performance. Dimensions include a 1/2" length, 0.164" thread diameter, and 3/32" hex drive size. It complies with ASTM F835 specifications for mechanical properties, and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring environmental safety and regulatory adherence in industrial use.