S-94050A180 3/8"-16 x 1 1/4" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance for long-lasting performance in marine and outdoor environments
• Superior anti-rotation security provided by the integrated square neck design
• Reliable coarse threading with UNC 3/8"-16 pattern and Class 2A fit for quick installation
• Wide rounded head profile distributes clamping force evenly and prevents pull-through
• Full threading capability allows for maximum adjustment and secure fastening
• Industry-standard compliance with ASME B18.5 specifications for consistent quality
• Environmental safety assurance through RoHS 3 and REACH compliance

Professional Applications & Engineering Value

Engineered for demanding environments where corrosion resistance and structural integrity are paramount, these silicon bronze carriage bolts deliver exceptional performance in marine construction, coastal infrastructure, and outdoor applications. The combination of marine-grade silicon bronze material and fully threaded UNC coarse spacing provides superior resistance to saltwater corrosion while enabling faster installation in wood and soft materials. The integrated square neck design beneath the wide rounded head prevents rotation during tightening, eliminating the need for secondary locking mechanisms and reducing installation time. This makes them ideal for dock construction, boat building, and outdoor structures where maintenance access is limited and long-term reliability is critical.

Specification Summary & Compliance

These carriage bolts feature precision Class 2A thread fit with UNC 3/8"-16 coarse thread spacing and full threading along the 1 1/4" length. Manufactured in compliance with ASME B18.5 standards for dimensional accuracy and performance reliability. The products meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements, ensuring they contain no restricted hazardous substances and are safe for industrial use.