The distance should not be greater than 300mm.
Fastener-type steel pipe scaffolding refers to scaffolding and support frames composed of fasteners and steel pipes that are erected for construction and bear loads, collectively referred to as scaffolding. Fasteners are fasteners that are fastened with bolts. Fasteners are connections between steel pipes. There are three types of fasteners, namely right-angle fasteners, rotating fasteners and butt fasteners.
The base is set up at the bottom of the pole. Pay attention to the difference between the base and the backing plate. The base is generally welded with steel plates and steel pipes. The base is usually placed on the backing plate, and the backing plate can be either The wooden board can also be a steel plate.