wedge anchor fastener
DIN603 carriage bolts are characterized by their domed or mushroom-shaped heads and square necks beneath the head. These bolts are designed to be inserted into pre-drilled holes and tightened from the opposite side, preventing the bolt from turning during installation. Carriage bolts are commonly used in wood-to-wood and wood-to-metal applications, providing a secure and visually appealing fastening solution. The square neck of the carriage bolt prevents it from turning when the nut is tightened, making it suitable for applications where a smooth and finished appearance is desired.