While shopping for pole line hardware fittings, one of the utility pole hardware that you are likely to come across is the square head machine bolt.
This is a pole line accessory that is designed to connect or fasten the U channel or steel cross arm to the pole.
Squarehead machine bolt can be used on an overhead transmission line and even a communication line.
The name of this powerline fitting is derived from the shape of its head. This means that you can find a round head machine bolt and hex head machine bolt.
Powertelcom square head machine bolts come in different dimensions. They are usually measured in terms of the length of the bolt, the thread count and the diameter of the head.
Usually, the diameter of the head can be 3/8”,5/8”, and 3/4”. The dimension of the square head machine bolt that you choose will depend on your specific area of application.
For the material, the square head machine bolt is made of carbon steel. This material has several positive properties that make it a perfect choice for this overhead powerline accessory.
Apart from being strong, it is resistant to corrosion.