S-92865A564 1/4"-20 x 6" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance from zinc plating extends service life and maintains integrity in humid or outdoor environments, lowering long-term replacement costs.
• Full UNC coarse threading provides enhanced grip and faster installation in a wide range of materials, improving assembly efficiency.
• Class 2A thread fit offers consistent, reliable engagement with standard nuts and tapped holes, minimizing cross-threading and rework.
• Grade 5 steel construction with Rockwell C25 hardness delivers optimal balance of strength and ductility for repeated use without deformation.
• External hex drive design allows for high-torque application with common tools, speeding up maintenance and assembly processes.
• Compliance with ASME B18.2.1 and SAE J429 guarantees interchangeability and quality assurance for industrial and automotive applications.

Professional Applications & Engineering Value

This Grade 5 steel hex head screw is engineered to address common industrial challenges such as vibration loosening and environmental degradation. The fully threaded UNC coarse pattern ensures maximum thread engagement in soft metals or wood, providing superior clamping force for structural assemblies, machinery frames, and heavy-duty equipment. The zinc-plated finish acts as a sacrificial layer, preventing rust in moisture-prone settings like agricultural machinery or outdoor construction. With a right-hand thread direction and external hex drive, it enables quick installation using standard wrenches, reducing labor time in assembly lines or field repairs. Ideal for automotive, manufacturing, and infrastructure projects, this fastener combines high tensile strength with consistent dimensional accuracy to minimize downtime and ensure long-term reliability.

Specification Summary & Compliance

This screw adheres to Class 2A thread fit per UNC standards, ensuring precise dimensional tolerance for reliable mating components. It meets ASME B18.2.1 and SAE J429 specifications for mechanical properties and design, confirming interchangeability in regulated industries. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing the absence of restricted hazardous substances for safe use in global markets.