S-94050A470 1/2"-13 x 2 1/2" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance in harsh marine and industrial environments due to premium silicon bronze material composition
• Secure anti-rotation performance with integrated square neck that prevents spinning during installation and use
• Wide rounded head design provides superior load distribution and reduces surface damage to connected materials
• Full threading with Class 2A fit ensures consistent engagement and reliable fastening across the entire bolt length
• 1/2"-13 UNC coarse thread pattern enables quicker installation and better performance in softer materials
• Comprehensive regulatory compliance meets ASME B18.5 standards plus RoHS 3 and REACH environmental requirements
• Heavy-duty construction delivers long-term reliability in demanding applications where durability is critical

Professional Applications & Engineering Value

These silicon bronze carriage bolts are specifically engineered to address the critical challenges of marine environments and industrial applications where corrosion resistance and structural integrity are paramount. The silicon bronze material provides inherent protection against saltwater corrosion and chemical exposure, significantly extending service life compared to standard fasteners. The combination of fully threaded UNC coarse pattern and square neck design solves common installation problems by preventing rotation during tightening while ensuring maximum thread engagement. This makes them ideal for boat building, dock construction, chemical processing equipment, and other applications where vibration resistance and long-term reliability are essential. The wide rounded head distributes clamping force effectively, minimizing damage to wood and composite materials commonly used in these demanding environments.

Specification Summary & Compliance

This 1/2"-13 UNC carriage bolt features precision Class 2A thread fit with coarse thread spacing, ensuring consistent performance and easy assembly. Manufactured to exact ASME B18.5 specifications for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest standards for hazardous substance restrictions. With a 2 1/2" length and 0.5" diameter, these bolts maintain strict inch system measurements for compatibility with existing industrial and marine systems.