S-91255A823 7/16"-14 x 1" ASTM F835 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in demanding industrial environments.
• Exceptional mechanical strength from alloy steel, providing 120,000 psi tensile strength for heavy-duty applications.
• Precise, reliable fastening ensured by Class 3A thread fit, minimizing the risk of cross-threading and assembly failures.
• High torque capability with a 1/4" hex drive, allowing for secure installation and removal with standard tools.
• Optimized for rapid assembly due to coarse UNC threading, reducing installation time in production lines.
• Consistent performance backed by compliance with ASME B18.3 and ASTM F835 standards, ensuring interchangeability and quality.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.

Professional Applications & Engineering Value

Engineered for industrial assembly, these black-oxide alloy steel screws address critical challenges in high-stress environments. The Rockwell C39 hardness and 120,000 psi tensile strength provide resilience against vibrational loosening and mechanical fatigue, making them ideal for machinery, automotive, and construction applications. The fully threaded UNC coarse design ensures maximum grip in softer materials or where rapid disassembly is needed. Combined with a rounded head and hex drive, they offer a low-profile, high-torque solution that resists corrosion, reducing maintenance costs and downtime in harsh operational conditions.

Specification Summary & Compliance

This screw features a 7/16"-14 UNC coarse thread with Class 3A fit for precise dimensional accuracy, manufactured in accordance with ASME B18.3 and ASTM F835 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use.