S-93548A748 1/2"-13 x 12" ASTM A307, SAE J429, ASME B18.5 Carriage Bolts
Carriage Bolts
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Basic Information
Head Parameters
Neck & Shank Parameters
Dimension Parameters
Thread Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior anti-rotation performance with a square neck design that locks securely into materials, preventing spinning during installation and use.
- Excellent corrosion resistance provided by the zinc-plated steel finish, extending service life in demanding industrial and outdoor environments.
- High tensile strength of 60,000 psi ensures reliable load-bearing capacity and structural integrity for heavy-duty applications.
- Optimized for quick installation with UNC coarse threading and a Class 2A thread fit, facilitating faster assembly and reducing labor time.
- Enhanced durability from Rockwell B70 hardness, providing resistance to wear and deformation under stress.
- Secure fastening in wood and metal due to the partially threaded design, which minimizes material splitting and ensures a tight grip.
- Broad compliance with industry standards including ASTM A307, SAE J429, and ASME B18.5, guaranteeing consistent quality and reliability.
Professional Applications & Engineering Value
This zinc-plated steel carriage bolt is engineered to address common challenges in construction and industrial assembly, such as vibration-induced loosening and corrosion. The square neck design embeds firmly into connected materials, providing exceptional anti-rotation that is critical for structural frameworks and machinery. With a 1/2"-13 UNC coarse thread and partial threading, it ensures rapid installation and reduced risk of material damage in wood or metal joints. The Grade 2 strength and 60,000 psi tensile capacity make it ideal for heavy-load scenarios like trailer hitches, agricultural equipment, and building supports, where durability and compliance with standards like ASTM A307 are paramount for safety and longevity.
Specification Summary & Compliance
This carriage bolt features precise Class 2A thread fit and UNC coarse threading for consistent engagement. It meets manufacturing specifications under ASTM A307, SAE J429, and ASME B18.5, ensuring dimensional accuracy and performance reliability. Additionally, it is compliant with environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), supporting sustainable and safe usage in global markets.
