Description
A Lindapter Hollo-Bolt HB12 drawn in elevation – the hexagonal head and collar, threaded core bolt and the expanding sleeve legs shown deployed, as they grip inside a hollow section. The Hollo-Bolt is the standard blind fixing for connecting to SHS/RHS members where you can only access one side of the steel.
Use it in steel connection details, façade and secondary steel fixing details, and retrofit documentation. Drawn at M12 proportions; scale for other sizes in the range. A free AutoCAD DWG block download.
