A9 Heavy Duty Plow Bolt Grade 8 Countersunk Square Neck
The A9 Heavy Duty Plow Bolt is engineered for demanding applications, offering exceptional strength and durability. Designed with a countersunk, flat head and a square neck, this bolt ensures a flush fit and prevents rotation during installation, making it ideal for heavy equipment and road construction projects.
Key Features
- Material and Grade: Constructed from high-strength alloy steel, this Grade 8 plow bolt provides a minimum tensile strength of 150,000 psi, ensuring reliable performance under heavy loads.
- Design: The flat, countersunk head allows for a smooth, flush surface when installed, reducing wear and tear on equipment. The square neck design prevents the bolt from turning when a nut is tightened, facilitating secure fastening.
- Thread Specifications: Featuring UNRC-2A threads in accordance with ANSI/ASME B1.1 standards, this bolt ensures compatibility with standard nuts and washers.
- Temperature Range: Suitable for use in extreme conditions, with an operational temperature range from –50°F to +300°F (–46°C to +149°C).
- Finish: A black finish with a light oil coating provides corrosion resistance, extending the bolt’s service life.
Applications
This plow bolt is commonly used in fastening the cutting edges of snow plows and heavy earth-moving equipment. Its robust design and high tensile strength make it suitable for various heavy-duty applications where secure and flush fastening is required.
Technical Specifications
- Diameter: 5/8″
- Thread Pitch: 11
- Thread Type: Coarse
- Length: 2-1/4″
- Head Style: Flat, Countersunk
- Finish: Plain
- Material: Alloy Steel
- Grade: 8
- Tensile Strength: 150,000 psi
- Thread Length: Partial
For optimal performance, it is recommended to use this plow bolt in conjunction with compatible heavy hex nuts and hardened flat washers.













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