S-98060A660 3/8"-16 x 1 1/4" ASTM A307, SAE J429 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
- Enhanced corrosion resistance with zinc-plated steel construction, extending service life in demanding environments.
- Superior anti-rotation performance due to the knurled neck design, preventing loosening under vibration and stress.
- High tensile strength of 60000 psi ensures reliable load-bearing capacity for heavy-duty applications.
- Easy installation and removal with fully threaded UNC coarse spacing and Class 2A thread fit for smooth engagement.
- Wide-rounded head profile distributes clamping force evenly, reducing surface damage and improving stability.
- Compliance with ASTM A307 and SAE J429 standards guarantees consistent quality and interchangeability.
- Rockwell B69 hardness provides excellent durability and resistance to wear in industrial settings.
Professional Applications & Engineering Value
This 3/8"-16 UNC Grade 2 zinc-plated steel carriage bolt is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in structural assemblies. The knurled neck securely locks into materials, preventing rotation during tightening and under dynamic loads, making it ideal for construction, machinery, and heavy equipment applications. With a coarse thread spacing and fully threaded design, it ensures quick installation and robust fastening in wood, metal, and composite materials. The zinc-plated surface offers reliable protection against rust, enhancing longevity in outdoor or humid conditions, while the rounded head minimizes protrusion and damage to connected surfaces, providing a clean, secure finish for professional projects.
Specification Summary & Compliance
This carriage bolt features precise Class 2A thread fit and adheres to UNC threading standards for consistent performance. It meets ASTM A307 and SAE J429 specifications, ensuring high manufacturing quality and strength reliability. Additionally, the product is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, supporting environmental safety and regulatory requirements in industrial supply chains.
