The ALUTRUSS BILOCK BQ2-SPAC41H is a horizontal 4-way cross piece for the BQ2 2-point truss system. It has a 90° corner angle and uses 50 mm diameter truss pipes with a 2 mm wall thickness. The component is made from EN-AW 6060 T66 aluminium, TIG-welded with AlMg 5 material, and finished in matte black powder coating. It measures 71 × 71 × 5 cm and weighs 5 kg.