ASME Zinc Plated Carriage Bolt

This particular carriage bolt is zinc plated. Zinc plating provides a protective layer on the surface of the bolt. It helps to prevent corrosion and rusting, increasing the durability and lifespan of the bolt, especially in environments where it may be exposed to moisture or other elements that could cause degradation. The zinc plating also gives the bolt a distinct, metallic appearance, often with a shiny or matte finish depending on the plating process used. The ASME standard ensures that the carriage bolt meets specific dimensional and quality requirements, making it suitable for a wide range of industrial and mechanical applications where reliable fastening is essential.

A carriage bolt (also known as a coach bolt) is a type of fastener featuring a smooth, dome-shaped head and a square neck beneath it, designed to prevent rotation during tightening. The ASME Zinc plated carriage bolt ensures standardized dimensions and mechanical properties for reliable performance.

Key Features:

Material: Typically made from carbon steel (Grade 2 or Grade 5) for strength and durability.

Finish: Zinc plating provides corrosion resistance, making it suitable for indoor and mild outdoor environments.

Head Type: Smooth, rounded head for a finished appearance; reduces snagging risks.

Square Neck: Locks into wood or metal to prevent spinning when tightening the nut.

Threading: Partially or fully threaded shank (as per ASME B18.5 standards).

Common Applications:

Wood-to-wood or wood-to-metal fastening (e.g., furniture, decks, trailers).

Agricultural equipment, fencing, and construction projects.

General machinery assembly where vibration resistance is needed.

Standards:

Complies with ASME B18.5 for dimensional specifications.

Zinc plating meets ASTM B633 (Type 1, Fe/Zn 5) for corrosion protection.

Available Sizes:

Diameters: #10 to 1" (or metric equivalents).

Lengths: ½" to 12" (custom lengths available).

Benefits:

✔ Easy installation with self-locking square neck.

✔ Zinc coating extends lifespan in humid conditions.

✔ ASME standardization ensures compatibility and reliability.