Type L148 is a structural base fixing used to fix down guardrailing and balustrades. This fitting is available with 2 or 4 fixing holes which are of sufficient diameter to give a good fixing with either a mechanical or chemical anchor. Specify 2 or 4 fixing holes when ordering. The two socket set screws in the vertical socket give greater stability to the upright. It is recommended that the fixing holes in the flanges should be inline with the applied load.