Product details:

ProX XT-BT1210 BLK BoltX' Professional Box Truss is designed and engineered for many applications like stage lighting, concerts, Ninja Obstacle Course type construction, and similar uses.12 H x 12 W Professional Box Truss W/Bolt Connection.
Industry Standard Bolt Pattern 6 3/4 x 6 3/4 with 5/8 Holes.
Load Tested & Inspected During Manufacturing and Quality Control.
Includes one set of Four 5/8 - 11 x 2.5 (NC) attachment bolts, nuts, flat & lock washers.
Outer Tube Diameter of 2, Wall Thickness 3mm (1/8), Diagonal 1, Wall of 3mm (1/8.).
Welded to TUV standards, 6082-T6 Alloy by GSI SLV-certified welders.
Weight: 62 Lbs.
Finish: Black Coated aluminum.