S-94050A230 1/4"-20 x 2 1/2" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance for long-lasting performance in marine and outdoor environments, reducing replacement frequency and maintenance costs
• Secure anti-rotation locking with integrated square neck design that prevents spinning during installation, ensuring reliable fastening in wood and metal applications
• Wide rounded head profile distributes clamping force evenly, minimizing surface damage while providing a finished appearance
• Class 2A coarse UNC threading enables quick installation and superior resistance to vibration loosening in demanding industrial settings
• Full threading along the 2½" length offers versatile positioning and maximum grip range for various material thicknesses
• Compliance with ASME B18.5 specifications guarantees dimensional accuracy and interchangeability with standard components
• RoHS 3 and REACH environmental compliance ensures safe usage in regulated industries while meeting global sustainability standards

Professional Applications & Engineering Value

Engineered for marine-grade applications and harsh outdoor environments, these silicon bronze carriage bolts solve critical corrosion challenges where standard steel fasteners fail. The square neck design mechanically locks into materials during torque application, eliminating rotational slippage in wood-to-metal connections and structural assemblies. With fully threaded UNC coarse patterning and Class 2A tolerance, installation efficiency improves while maintaining vibration resistance in docks, fencing, and industrial equipment. The wide rounded head provides superior bearing surface without sinking into softer materials, making these corrosion resistant bolts ideal for permanent outdoor structures and saltwater-exposed applications where durability outweighs frequent maintenance.

Specification Summary & Compliance

Manufactured to ASME B18.5 dimensional standards with Class 2A thread fit ensuring precise interchangeability. The 1/4"-20 UNC coarse thread maintains consistent pitch accuracy while the square neck (0.26" width × 0.16" length) provides secure anti-rotation performance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations confirms suitability for regulated industrial and international applications.