S-91253A192 8-32 x 3/8" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating on alloy steel, extending service life in demanding environments.
• High tensile strength of 130,000 psi ensures reliable load-bearing capacity and resistance to mechanical stress.
• Precise Class 3A thread fit guarantees secure, vibration-resistant fastening and reduces assembly errors.
• 82° countersink angle provides a flush, professional finish and prevents snagging in assembled components.
• Hex drive design (3/32") allows for easy installation and high torque application with standard tools.
• Fully threaded UNC coarse spacing enables quick engagement and strong holding power in various materials.
• Compliance with ASME B18.3 and ASTM F835 ensures consistent quality and interchangeability in industrial applications.

Professional Applications & Engineering Value

Engineered for high-performance industrial assemblies, these 8-32 UNC flat head screws address critical challenges in machinery, electronics, and automotive sectors. The black-oxide alloy steel construction combats rust and wear, while the Rockwell C39 hardness maintains structural integrity under repetitive stress. The fully threaded coarse spacing and Class 3A fit minimize cross-threading risks and enhance vibration resistance, making them ideal for high-tensile applications where reliability is paramount. Their 82° countersink seamlessly integrates into pre-drilled holes, reducing protrusion and improving safety in compact designs.

Specification Summary & Compliance

This screw features a Class 3A thread fit with UNC coarse threading and precise dimensional adherence to ASME B18.3 and ASTM F835 standards. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability for global industrial use.