For notice signs sized 140 x 113 mm. Aluminium mounting plates are made of 1.8 mm thick aluminium. Numerous recessed reinforcements give the panel the necessary strength and stability. Our aluminium mounting plates are offered in 2 options: For mounting on the post with the steel strap and for mounting on surfaces (e.g. house walls etc.). The plates are available in either version for holding 1, 2 or 3 notice signs.