S-91253A016 10-32 x 1 3/4" 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 applications, reducing the risk of fastener failure.
• Class 3A thread fit provides superior precision and tighter tolerances for secure, vibration-resistant assemblies.
• Black-oxide coating on alloy steel offers enhanced corrosion resistance and a durable, non-reflective finish suitable for harsh environments.
• Partially threaded design with 7/8" minimum thread length allows for controlled clamping force and easier alignment in precision components.
• 82° countersink angle and flat head profile enable a flush, clean finish that minimizes protrusion and improves aerodynamics or safety.
• Hex drive (1/8") facilitates quick and secure installation with standard tools, reducing assembly time and labor costs.
• Compliance with ASTM F835, RoHS 3, and REACH ensures adherence to industry standards for quality, safety, and environmental regulations.

Professional Applications & Engineering Value

These 10-32 UNF flat head screws are engineered to address critical challenges in industrial and precision assemblies, where vibration resistance, material integrity, and consistent performance are paramount. The black-oxide alloy steel construction, combined with a Rockwell C39 hardness, provides excellent durability against wear and environmental exposure, reducing maintenance needs in machinery, automotive, or aerospace components. The fine thread spacing and Class 3A thread fit ensure a tight, secure connection that minimizes loosening under dynamic loads, while the 82° countersink angle allows for seamless integration into angled surfaces, enhancing structural integrity and aesthetic appeal. Ideal for applications requiring high-strength heavy-duty fasteners, these screws deliver reliable clamping force and long-term operational stability.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including a Class 3A thread fit for high-accuracy assemblies and UNF fine threading with a minimum thread length of 7/8". Manufactured in compliance with ASTM F835 specifications, it meets rigorous mechanical and quality requirements. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental safety and regulatory alignment for global industrial use.