S-90185A720 1/2"-13 x 2" ASME B18.5, SAE J429 Carriage Bolts

Key Features & Benefits at a Glance

• Superior anti-rotation performance due to the integrated square neck design, preventing the bolt from turning during installation and ensuring a secure, reliable hold.
• Exceptional strength for demanding applications with a Grade 5 classification and 120,000 psi tensile strength, providing high resistance to breaking and stripping under heavy loads.
• Enhanced corrosion resistance from the zinc-plated steel construction, offering durable protection against rust and extending the service life of your assemblies.
• Reliable and fast installation with fully threaded UNC coarse spacing, allowing for quicker driving and better performance in wood and soft materials.
• Consistent quality and interchangeability ensured by compliance with the ASME B18.5 standard, guaranteeing precise dimensions and reliable performance.
• Wide head profile for superior load distribution, reducing the risk of surface damage and providing a larger bearing surface for a more secure fastening.
• Safe for various industrial environments by meeting RoHS 3 and REACH environmental compliance standards, ensuring they are free from hazardous substances.

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel carriage bolt is engineered to solve critical fastening challenges in heavy-duty industrial and construction applications. The combination of a square neck and rounded head provides exceptional anti-rotation, making it ideal for wood-to-metal connections where vibration resistance is paramount. The fully threaded UNC coarse thread ensures rapid assembly and strong holding power in materials like timber and composite structures, reducing installation time and labor costs. With a tensile strength of 120,000 psi and Rockwell C25 hardness, it withstands significant stress and impact, preventing joint failure in demanding environments such as structural framing, machinery assembly, and trailer manufacturing. The zinc plating offers a protective barrier against corrosion, ensuring long-term reliability even in moderately harsh conditions, while compliance with major standards guarantees performance consistency and safety.

Specification Summary & Compliance

This carriage bolt features a 1/2"-13 UNC thread with Class 2A fit and coarse spacing, ensuring dimensional accuracy and easy assembly. It is manufactured in accordance with ASME B18.5 specifications, guaranteeing consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming it is free from restricted hazardous substances and safe for use in various industrial sectors.