B-Line Eaton series strut fittings and accessories, 18.68" Height, 24" Length, 1.62" Width, 3.03lbs, Steel, Corner to brace length 18-11/16, Two hole

The B261-24YZN knee brace is rated for a 250 lb load capacity. That is the figure to design to when you are bracing a strut trapeze or a cantilever arm off a wall run; if the supported weight is higher, use more than one brace or step up to a heavier support method.

It is a fixed 45 degree knee brace, so it triangulates a strut corner at 45 degrees with no adjustment. Corner to brace length is 18-11/16 inches, and the part itself measures 24 inches long by 18.68 inches high by 1.62 inches wide. Make sure you have that much clear run on both legs of the corner before you commit to this size.

Yes. The B261-24YZN is the steel brace on its own, a two hole knee brace, so you supply the strut nuts and hardware for each end. Two connection points means two nut and bolt sets per brace, sized to the channel you are bracing.

Yellow zinc chromate is a plated finish for dry indoor service, which is where this brace belongs: indoor mechanical rooms, ceiling trapezes, electrical rooms. For exterior, wet, or corrosive locations you want a hot dip galvanized or stainless brace instead.

A knee brace ties a vertical strut leg to a horizontal strut arm at an angle so the joint resists deflection instead of relying on the fitting alone. Typical uses are wall mounted cantilever supports for conduit, cable tray, or pipe. This one is the 45 degree two hole version in steel, which is the common choice where you have room for a full diagonal off the corner.