S-90780A724 1/2"-13 x 3" ASTM F468, MIL-S-1222 Nickel Alloy Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 400 Nickel material for extended service life in harsh environments
• High load-bearing capability with 80,000 psi tensile strength for demanding industrial applications
• Reliable thread engagement through Class 2A fit and UNC coarse threading for secure fastening
• Optimized stress distribution with partially threaded design reducing risk of thread stripping
• Easy installation and removal with standard 3/4" external hex head for common tool compatibility
• Consistent performance backed by Rockwell B80 hardness for dimensional stability under load
• Regulatory compliance assurance meeting multiple industry standards for quality and safety

Professional Applications & Engineering Value

This 1/2"-13 UNC hex head screw delivers exceptional engineering value through its 400 Nickel composition, providing outstanding corrosion resistance that outperforms standard steel fasteners in chemical processing, marine, and offshore applications. The partially threaded design concentrates thread engagement where needed most, preventing stress concentration at the thread run-out while maintaining full shank strength. With coarse UNC threading and Class 2A fit, these screws resist vibration loosening and provide reliable performance in heavy machinery, structural assemblies, and equipment subjected to dynamic loads. The external hex drive configuration ensures high torque capability during installation, making them ideal for maintenance operations where access may be limited.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse thread profile ensuring interchangeability and proper engagement. This hex head screw complies with ASTM F468 and MIL-S-1222 specifications for material quality and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. Thread specifications maintain 1/2"-13 UNC dimensions with 3" overall length and 1-1/4" minimum thread length for consistent performance across industrial applications.