S-93548A530 1/4"-20 x 1/2" ASTM A307, SAE J429, ASME B18.5 Carriage Bolts
Carriage Bolts
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Neck & Shank Parameters
Dimension Parameters
Thread Parameters
Material & Strength Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
- Prevents rotation during installation thanks to the integrated square neck design that locks securely into materials
- High tensile strength of 60,000 PSI (Grade 2) ensures reliable performance under substantial loads
- Rockwell B70 hardness provides excellent durability and resistance to deformation
- Easy installation and removal with UNC coarse threading and Class 2A thread fit for smooth engagement
- Versatile fully threaded design allows for maximum adjustability and holding power across various material thicknesses
- Wide rounded head profile distributes clamping force evenly and reduces surface damage
Professional Applications & Engineering Value
Engineered for demanding industrial fastening applications, these zinc-plated steel carriage bolts deliver exceptional performance in construction, machinery assembly, and structural frameworks. The square neck design eliminates rotational movement during torque application, solving common installation challenges in wood-to-metal and timber connections. With UNC coarse threading and Class 2A thread fit, these bolts provide reliable engagement in various materials while the zinc plating offers superior corrosion protection in humid or outdoor environments. The combination of 60,000 PSI tensile strength and Rockwell B70 hardness ensures these fasteners maintain integrity under vibration and dynamic loads, making them ideal for permanent installations where reliability is critical.
Specification Summary & Compliance
This 1/4"-20 carriage bolt features Class 2A thread fit per UNC standards with precise dimensional compliance to ASME B18.5. Manufactured to meet ASTM A307 and SAE J429 Grade 2 specifications, ensuring consistent quality and performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe use across industrial applications.
