S-90934A845 3/4"-10 x 2 1/2" SAE J429 Plow Bolts

Key Features & Benefits at a Glance

• Exceptional strength and durability with Grade 8 classification and 150,000 psi tensile strength, ensuring reliable performance in the most demanding heavy-duty applications.
• Superior corrosion resistance provided by the zinc yellow-chromate plating on steel, extending the bolt's service life in harsh agricultural and industrial environments.
• Secure anti-rotation installation thanks to the square neck design, which prevents the bolt from turning during tightening and maintains assembly integrity.
• Optimized thread engagement with fully threaded UNC coarse spacing and Class 2A fit, enabling faster assembly and reliable holding power.
• Enhanced load distribution from the standard oval head and 82° countersink angle, reducing surface stress and preventing pull-through in plow and equipment applications.
• Consistent high hardness at Rockwell C33, providing excellent wear resistance and reducing the risk of stripping or deformation under heavy loads.
• Broad industry compliance by meeting SAE J429 specifications, assuring quality and interchangeability for OEM and maintenance requirements.

Professional Applications & Engineering Value

This Grade 8 plow bolt is engineered to address critical challenges in heavy-duty agricultural and industrial equipment, where vibration, impact loads, and exposure to moisture are common. The zinc yellow-chromate plated steel construction offers a robust barrier against rust and corrosion, significantly prolonging component life in field operations. The fully threaded design with UNC coarse threads ensures deep, secure fastening in thick metal sections, while the square neck effectively locks the bolt in place to resist rotation during dynamic use. This combination of high tensile strength and precise thread fit minimizes loosening and failure, making it an ideal choice for snowplows, earth-moving machinery, and other high-stress assemblies requiring dependable, long-lasting fastening solutions.

Specification Summary & Compliance

The bolt features a 3/4"-10 UNC coarse thread with Class 2A tolerance for consistent fit and ease of assembly. It complies with SAE J429 specifications for mechanical properties and dimensions, ensuring reliability and interchangeability. The zinc yellow-chromate plating meets common industry standards for corrosion protection, and the material and finish are typically in line with RoHS and REACH requirements for restricted substances, supporting use in regulated environments.