B-Line B120HDG Eaton series strut fittings and accessories, 3.93" Height, 3.5" Length, 1.62" Width, 1.10lbs, Steel, Six hole double corner angle, 90 deg, Thickness 1/4 in, Hot-dipped galvanized

The B120HDG is a six hole double corner angle bent at 90 degrees, used to tie two runs of strut channel together at a right angle. Because it is a double corner angle, it carries bolt holes on both legs so the connection is made on each channel face rather than relying on a single flat plate. It is steel, 1/4 inch thick, and weighs 1.1 lb.

The finish is hot-dipped galvanized over steel, which is the coating normally specified for exterior, damp, and unheated locations rather than the plain or electro-plated versions of the same fitting. If you are running strut outdoors or in a wash-down area, this is the finish code to order.

It measures 3.93 x 3.5 x 1.62 inches (height, length, width as published) with a material thickness of 1/4 inch. The 1.62 inch width is the figure to check first: standard strut channel is 1-5/8 inches across the face, so the fitting sits within the channel width rather than overhanging it.

A flat 90 degree angle bolts to one face of each channel. A double corner angle like the B120HDG wraps the corner with holes on both legs and gussets the joint, so the connection resists twisting at the corner instead of loading a single row of bolts. If your right-angle joint carries cantilevered weight or vibration, the double corner version is the one to pick; for light framing where the joint is only holding alignment, a simple flat angle plate is enough.

Order B120HDG. The HDG suffix is the hot-dipped galvanized finish on the B120 six hole double corner angle. That is the exact manufacturer part number to quote.

Each piece weighs 1.1 lb. On a large strut framing package that adds up quickly, so if you are counting dead load on an overhead run, multiply 1.1 lb by the fitting count and add it to the channel and hardware weight.