Carriage bolts have no drive on the head, but the square neck under the head has the function to fix position of the bolt. A carriage bolt is a fastener without drive usually to connect wood and metal, generally used in lock systems and alarm systems.
- 2020 Holiday Notice of Dragon Boat Festival.
We will close our company for Dragon Boat Festival from Jun 25 to Jun 28, 2020. Returning to the office on Monday Jun 29. Thank you very much for your support and understanding.Read More
- 2020 Holiday Notice of Mid-Autumn Festival.
We will close our company for Mid-Autumn Festival from Oct 1 to Oct 4, 2020. Returning to the office on Monday Oct 5. Thank you very much for your support and understanding.Read More
- ISO 9001: 2015 Quality Management
We update our ISO 9001:2015 certificate at July 2018.Read More