Unistrut Flat Fittings The Unistrut Single-hole flat steel plate is a square bracket. Features and Benefits Hole spacing (From End): 20mm from the end of the fitting
Fitting Width: 41mm
Dimensions: 41.3 x 41.3mm
Fixing hole diameter is 7/16in Certifications EN 10088-2-1.4404+1D certified
EN ISO 1461 certified