S-91253A168 6-32 x 3" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 130,000 psi ensures reliable performance in demanding industrial applications, reducing the risk of fastener failure.
• Class 3A thread fit provides superior precision and tighter tolerances for secure, vibration-resistant assemblies in critical machinery.
• Black-oxide coating on alloy steel enhances corrosion resistance and durability, extending service life in harsh environments.
• Hex drive design allows for high-torque installation with standard tools, improving assembly efficiency and reducing strip-out.
• Partially threaded shank with coarse UNC spacing offers optimal grip and alignment, minimizing loosening under dynamic loads.
• 82° countersink angle ensures a flush, professional finish when seated, preventing snagging and maintaining aesthetic integrity.
• Compliance with ASTM F835, RoHS 3, and REACH guarantees material quality and environmental safety, meeting global regulatory standards for B2B procurement.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial use, these 6-32 UNC flat head screws address common challenges like vibration-induced loosening and corrosion in machinery assembly. The Black-Oxide Alloy Steel construction, combined with a Class 3A thread fit, ensures precise engagement and long-term reliability in equipment subjected to high stress. Ideal for applications in automotive, aerospace, and manufacturing sectors, the hex drive facilitates quick installation with standard wrenches, reducing downtime. The partially threaded design and coarse thread spacing enhance clamping force, making these screws a trusted solution for securing components in dynamic environments where durability and compliance with ASTM F835 are critical.

Specification Summary & Compliance

This product adheres to Class 3A thread fit tolerances per UNC standards, ensuring dimensional accuracy for secure fastening. Manufactured in compliance with ASTM F835 specifications, it meets rigorous mechanical and material requirements. Environmental conformity is confirmed through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting sustainable procurement practices. Key attributes include a 3" length, Rockwell C39 hardness, and 82° countersink angle, all designed for consistent performance in industrial settings.