S-91236A732 1/2"-13 x 5" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibration
• Superior corrosion resistance with zinc plating extends service life in demanding industrial environments
• High hardness rating (Rockwell B69) provides excellent wear resistance and durability
• Coarse UNC threading enables faster installation and superior holding power in various materials
• External hex drive design allows for high torque application with standard tools
• Partial threading configuration offers optimal clamping force distribution
• Comprehensive regulatory compliance ensures environmental and safety standards are met

Professional Applications & Engineering Value

This 1/2"-13 UNC hex head screw delivers critical engineering solutions for industrial assembly challenges. The high-strength steel construction with zinc plating provides essential protection against corrosion in manufacturing facilities, construction sites, and outdoor applications. The coarse thread design ensures rapid installation while maintaining superior pull-out resistance in structural connections, machinery assembly, and heavy equipment maintenance. With partial threading, this fastener optimizes clamping force distribution, preventing joint loosening under dynamic loads. The external hex drive accommodates high-torque applications using standard tools, reducing installation time and labor costs in production environments.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit tolerances with UNC coarse threading (1/2"-13). This 5" length partially threaded hex head screw meets ASME B18.2.1 specifications and ASTM A307 material standards. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications.