S-91589A802 5/8"-11 x 2" SAE J429 Plow Bolts

Key Features & Benefits at a Glance

• Exceptional Shear and Tensile Strength: Grade 8 classification and 150,000 psi tensile strength ensure reliable performance under extreme loads, preventing bolt failure in high-stress environments.
• Superior Wear and Deformation Resistance: Rockwell C33 hardness provides excellent durability, maintaining bolt integrity and thread form even after repeated use and impact.
• Secure Anti-Rotation Locking: The integral key locking neck and matching keyway in the assembly prevent the bolt from spinning during operation, ensuring a stable and maintenance-free connection.
• Optimized Thread Engagement: Fully threaded UNC coarse thread profile with Class 2A fit allows for faster installation and provides consistent clamping force across the entire bolt length.
• Flush-Mounting for Smooth Surfaces: The standard flat head with a 60° countersink angle sits flush with the mounted surface, reducing snagging hazards and allowing for unobstructed material flow.
• Heavy-Duty Material Reliability: Made from high-strength steel, this bolt is built to withstand the harsh conditions of abrasive and high-impact applications.
• Guaranteed Compliance and Consistency: Manufactured to meet SAE J429 specifications, ensuring dimensional accuracy and mechanical properties are consistently delivered for dependable procurement and application.

Professional Applications & Engineering Value

This Grade 8 plow bolt is engineered to solve critical fastening challenges in heavy-duty industrial and agricultural equipment. Its key locking neck design is specifically tailored for applications where vibration and rotational forces are prevalent, such as securing cutting edges on snowplows, earth-moving blades, and conveyor systems. The fully threaded 5/8"-11 UNC coarse thread ensures maximum thread contact in thick sections, providing superior pull-out resistance. The flat head with a standard profile allows for a smooth, flush finish, which is essential for equipment where protruding fasteners could cause material buildup or safety issues. Constructed from high-strength steel and heat-treated to a Rockwell C33 hardness, it delivers the necessary toughness to resist abrasion and impact, significantly reducing downtime for maintenance and replacement in demanding operational environments.

Specification Summary & Compliance

This plow bolt features a Class 2A thread fit for standard industrial assembly, with UNC coarse threading (5/8"-11) and a right-hand thread direction. It conforms to the dimensional and mechanical requirements of SAE J429 for Grade 8 fasteners. The product is also compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for use in various markets.