S-92865A737 1/2"-13 x 6 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 under heavy loads, reducing the risk of fastener failure in critical applications.
• Superior corrosion resistance from zinc plating extends service life and maintains integrity in harsh or outdoor environments.
• High hardness rating (Rockwell C25) provides excellent wear resistance and durability, minimizing deformation during installation and use.
• Coarse UNC threading offers faster installation and better performance in materials where fine threads may strip or weaken.
• Full threading along the 6 1/2" length allows for maximum grip and adjustability, ideal for applications requiring deep penetration or variable material thickness.
• External hex drive design enables easy installation with standard tools, improving assembly efficiency and reducing labor time.
• Compliance with ASME B18.2.1/SAE J429 standards guarantees consistent quality, interchangeability, and reliability in industrial and construction settings.

Professional Applications & Engineering Value

This Grade 5 hex head screw is engineered to address common challenges in heavy-duty fastening, such as vibration-induced loosening and environmental degradation. The zinc plated steel construction provides a protective barrier against rust and corrosion, making it suitable for outdoor construction, machinery assembly, and infrastructure projects. The coarse UNC thread ensures secure holding power in softer materials or where rapid assembly is critical, while the fully threaded design offers versatility for varying material thicknesses. With a tensile strength of 120,000 psi and Rockwell C25 hardness, it withstands high-stress applications without compromising integrity, reducing maintenance needs and downtime in industrial operations.

Specification Summary & Compliance

This screw features a 1/2"-13 UNC coarse thread with Class 2A fit for consistent engagement and ease of assembly. It complies with ASME B18.2.1 and SAE J429 specifications, ensuring dimensional accuracy and performance reliability. The product is RoHS 3 (2015/863/EU) compliant, meeting environmental regulations for hazardous substance restrictions. Manufactured in the inch system, it includes a right-hand thread direction and external hex drive for standardized tool compatibility.