S-91589A814 5/8"-11 x 5" SAE J429 Plow Bolts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Grade 8 classification and 150,000 psi tensile strength for reliable performance in high-stress environments.
• Superior wear and deformation resistance due to Rockwell C33 hardness, ensuring long service life in abrasive conditions.
• Secure anti-rotation locking provided by the key locking neck design, preventing loosening under vibration in heavy machinery.
• Easy installation and removal with UNC coarse threading and Class 2A thread fit, reducing assembly time and maintenance efforts.
• Optimized countersink seating with a standard 60° flat head profile for flush mounting, minimizing protrusion in plow and equipment applications.
• Reliable partial threading offering a 1 1/2" minimum thread length for focused grip strength where full threading isn't required.
• Compliance with stringent industry and environmental standards, including SAE J429, RoHS 3, and REACH, ensuring safety and regulatory acceptance.

Professional Applications & Engineering Value

This Grade 8 plow bolt is engineered to address critical challenges in heavy-duty industrial and agricultural settings. The high-strength steel construction, combined with a Rockwell C33 hardness, resists shear forces and abrasion commonly encountered in snow plows, earth-moving equipment, and construction machinery. The key locking neck design effectively counters vibrational loosening, a common failure point in dynamic applications, while the UNC coarse thread and Class 2A fit ensure quick, secure fastening even in dirty or high-vibration environments. The flat head with 60° countersink allows for a smooth, flush finish, reducing material hang-up and improving operational efficiency. Fully compliant with SAE J429 specifications, this bolt delivers consistent performance and reliability for professionals requiring durable, high-tensile fastening solutions.

Specification Summary & Compliance

This plow bolt features precise Class 2A thread fit and UNC 5/8"-11 coarse threading for reliable engagement. It is manufactured in accordance with SAE J429 standards for Grade 8 fasteners, ensuring consistent mechanical properties and dimensions. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety requirements for industrial use.