S-93516A726 1/2"-13 x 3 1/2" ASME B18.2.1 Bronze Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh marine and chemical environments due to 651 Silicon Bronze material composition
• Exceptional mechanical strength with 70,000 psi tensile strength for heavy-duty industrial applications
• Reliable thread engagement with UNC coarse threading and Class 2A fit ensuring secure fastening in various materials
• Optimized drive performance through external hex design providing maximum torque transfer and installation efficiency
• Full-threaded design offering consistent holding power along the entire 3½" length for superior load distribution
• Certified material hardness at Rockwell B70 ensuring excellent wear resistance and durability
• Regulatory compliance assurance meeting ASME B18.2.1, RoHS 3, and REACH standards for quality and environmental safety

Professional Applications & Engineering Value

Engineered for demanding environments where corrosion resistance and structural integrity are paramount, these silicon bronze hex head screws deliver exceptional performance in marine applications, chemical processing facilities, and coastal infrastructure. The 651 silicon bronze composition provides natural resistance to saltwater corrosion and atmospheric degradation, while the UNC coarse thread pattern ensures reliable installation in both soft and hard materials. The external hex drive design allows for high-torque applications without stripping, and the fully threaded configuration maintains consistent clamping force across the entire fastener length. These industrial-grade hex head screws are specifically designed to withstand the challenges of harsh environments where standard steel fasteners would rapidly deteriorate.

Specification Summary & Compliance

This 1/2"-13 UNC silicon bronze hex head screw features precise Class 2A thread fit tolerances and coarse thread spacing for optimal performance. Manufactured in compliance with ASME B18.2.1 specifications for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) standards for chemical safety, ensuring environmental responsibility while maintaining 70,000 psi tensile strength and Rockwell B70 hardness for reliable industrial performance.