S-98060A110 1/4"-20 x 3/4" 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 tensile strength of 60,000 PSI (Grade 2) for reliable load-bearing in structural and heavy-duty applications
- Secure anti-rotation locking due to the knurled neck design, preventing loosening under vibration or dynamic loads
- Easy installation and alignment with a wide, rounded carriage head that sits flush without marring surfaces
- Wide compatibility and quick assembly with UNC coarse threading (1/4"-20) and Class 2A fit for common industrial uses
- Consistent performance backed by Rockwell B69 hardness, ensuring durability and resistance to deformation
- Full regulatory compliance meeting ASTM A307, SAE J429, RoHS 3, and REACH for safe, global sourcing
Professional Applications & Engineering Value
This zinc-plated steel carriage bolt is engineered to address common challenges in industrial assembly, such as vibration-induced loosening and corrosion in outdoor or humid conditions. The knurled neck provides positive grip within pre-drilled holes, eliminating spin-out during nut tightening—ideal for wood-to-metal connections in trailer beds, agricultural equipment, and structural frameworks. With a fully threaded UNC coarse pattern and Grade 2 strength, it ensures rapid installation and reliable clamping force in applications where 60,000 PSI tensile strength is critical. The zinc plating adds a protective barrier, while the rounded head minimizes snagging risks, making it a versatile choice for OEM and MRO needs across construction, automotive, and machinery sectors.
Specification Summary & Compliance
This carriage bolt adheres to precise dimensional standards, including UNC 1/4"-20 coarse threads with Class 2A thread fit for consistent engagement. Manufacturing and material specifications comply with ASTM A307 and SAE J429 Grade 2, ensuring mechanical properties like tensile strength and hardness (Rockwell B69) are consistently met. The product is verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming the absence of restricted substances for environmentally responsible procurement.
