S-98060A190 1/4"-20 x 2" 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 Anti-Rotation Security – Knurled neck design prevents bolt spinning during installation, ensuring stable fastening in wood and metal assemblies.
- Superior Corrosion Resistance – Zinc-plated steel construction provides reliable protection against rust, extending service life in harsh environments.
- High Tensile Strength – Grade 2 classification with 60,000 PSI tensile strength supports heavy-duty applications without failure.
- Optimized Thread Engagement – UNC coarse threading and Class 2A fit enable quick assembly and secure hold in coarse-grained materials.
- Wide Bearing Surface – Rounded carriage head distributes load evenly, reducing surface damage and improving joint integrity.
- Consistent Hardness – Rockwell B69 hardness ensures durability and resistance to wear under repetitive stress.
- Regulatory Compliance – Meets ASTM A307, SAE J429, RoHS 3, and REACH standards for safe, industry-approved use.
Professional Applications & Engineering Value
This zinc-plated steel carriage bolt is engineered to address common industrial challenges like vibration loosening and corrosion. The knurled neck bites into materials, providing anti-rotation security that is critical in wooden structures, machinery frames, and transportation equipment. With a 1/4"-20 UNC coarse thread and Grade 2 strength, it offers reliable fastening in applications where speed and durability are paramount, such as agricultural implements, trailer assemblies, and construction frameworks. The zinc plating enhances corrosion resistance, making it suitable for outdoor or humid conditions, while the partially threaded design allows for precise clamp-up without thread interference.
Specification Summary & Compliance
This carriage bolt features a 1/4"-20 UNC coarse thread with Class 2A thread fit for standard industrial tolerances. It complies with ASTM A307 and SAE J429 specifications, ensuring consistent performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for global supply chains.
