Galvanized Stud Bolts and Nuts

Galvanized Stud Bolts and Nuts are usually manufactured by carbon steel. Hot galvanized stud bolts are commonly used in occasions requiring high-strength support, such as high-pressure valves and mining equipment. Therefore, the reliability of their quality is crucial. The following methods can be used to assess the coating quality of hot galvanized stud bolts:

1. Visual Inspection: Check whether the coating surface is smooth and uniform, and ensure there are no obvious defects like missing coating, bubbles, roughness, or particles.

2. Thickness Measurement: Measure the coating thickness using standard methods to ensure it meets the required specifications.

3. Adhesion Test: Use methods like the cross-cut test to evaluate the adhesion between the coating and the substrate. The coating should not peel off.

4. Corrosion Resistance Test: Perform tests such as salt spray tests to evaluate the coating’s corrosion resistance over a set period.

5. Zinc Coating Uniformity Check: Ensure the coating is distributed evenly across all parts of the bolt.

6. Bond Strength Test: Use appropriate mechanical testing methods to assess the bonding strength between the coating and the substrate.

    

   Technical Data & Availability

Shipping and Payment Terms:

• We generally ship cargos worldwide by sea. The goods will be in a shipping container when arriving at the port. You are responsible for picking up your shipment and customs clearance on your side.
• We do accept small, urgent orders that need to be shipped by air.
• We currently accept T/T & L/C.
• Please contact us if you have any questions about shipping or payment, we will be happy to assist you