S-92865A869 3/4"-10 x 8 1/2" 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 in high-stress applications, reducing the risk of fastener failure.
• Superior corrosion resistance from zinc plating extends service life in harsh industrial environments, minimizing maintenance and replacement costs.
• High hardness rating (Rockwell C25) provides excellent wear resistance, maintaining thread integrity through repeated use.
• Precision Class 2A thread fit with UNC coarse spacing enables quick installation and secure fastening without cross-threading concerns.
• Full threading along the 8½" length offers maximum grip and adjustment flexibility in various material thicknesses.
• External hex drive design with 1⅛" head width allows for high-torque application using standard tools, speeding up assembly processes.
• Compliance with ASME B18.2.1/SAE J429 standards guarantees consistent quality and interchangeability in professional applications.

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers critical engineering value through its zinc plated steel construction and 3/4"-10 UNC coarse threading, specifically designed to address demanding industrial fastening challenges. The combination of 120,000 psi tensile strength and Rockwell C25 hardness provides exceptional resistance to vibrational loosening and structural fatigue in heavy machinery, construction equipment, and structural steel assemblies. The fully threaded design ensures maximum engagement in thick materials, while the external hex drive facilitates efficient installation in confined spaces. These industrial fasteners solve common pain points of corrosion-induced failure and installation inefficiency, making them ideal for heavy-duty applications requiring both superior clamping force and long-term reliability in challenging environments.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit with 3/4"-10 UNC coarse thread spacing and right-hand thread direction, manufactured to ASME B18.2.1 specifications where identified per SAE J429 Grade 5 requirements. The fastener maintains dimensional accuracy with 1⅛" head width and 8½" length for consistent performance. Compliance includes RoHS 3 (2015/863/EU) environmental regulations, ensuring safe use across various industrial sectors without hazardous substance restrictions.