H. Paulin 1/2"-13 x 2-1/2" Flat No 3 Plow Bolt - B133-588 H. Paulin 133-588 Paulin 1/2"-13 x 2-1/2" Flat No.3 Head Plow Bolts Steel Zinc Grade 5 UNC PT 230 PCS Plow bolts are characterized by a flat, countersunk head, a square neck, and a consistent thread pitch. They find their application in heavy machinery such as road graders and scoop shovels, where a smooth, flat surface is essential. These bolts, when zinc plated, offer robust resistance to corrosion. Constructed from medium carbon steel, Grade-5 plow bolts are identifiable by their three radial bars on the head marking. Thread FT/PT: Partial Thread; Threads Per Inc: 13; Thread Type: Coarse thread; Head Type: Flat; Head Diameter: 0.945"; Inches/Metric: Imperial; Head Height: 0.417"; Product Base Material: Steel The zinc coating with a bright finish applied to these bolts serves as a protective barrier against moderate corrosion resistance. Countersunk, Flat Head: Plow bolts have a flat head that is countersunk, allowing them to lie flush with the surface of the material they're fastened to. This design is crucial for applications where a smooth surface is necessary to avoid catching or snagging, such as on the blades of a plow. Square Neck: Directly beneath the head of a plow bolt is a square neck, which prevents the bolt from turning as it's tightened. This feature is particularly useful in materials that don't allow for a deep countersink, providing a locking mechanism that holds the bolt steady during tightening and use. Unified Thread Pitch: Plow bolts have a standardized thread pitch, which ensures compatibility with nuts and threaded holes designed for a specific size and type of bolt. This standardization facilitates easier maintenance and replacement. Square Neck: Directly beneath the head of a plow bolt is a square neck, which prevents the bolt from turning as it's tightened. This feature is particularly useful in materials that don't allow for a deep countersink, providing a locking mechanism that holds the bolt steady during tightening and use. Unified Thread Pitch: Plow bolts have a standardized thread pitch, which ensures compatibility with nuts and threaded holes designed for a specific size and type of bolt. This standardization facilitates easier maintenance and replacement. Extensively used in the manufacturing and maintenance of heavy equipment.
