B-Line B178SHRZN Eaton series strut fittings and accessories, 3.43" Height, 12" Length, 1.62" Width, 1.43lbs, Steel, Right bracing slotted bracket, Thickness 1/4 in, Electro-plated

The B178SHRZN is a right bracing slotted bracket from the Eaton B-Line strut fittings line. It ties a diagonal brace back to a strut run, so you can triangulate a trapeze hanger, a pipe or conduit support, or a cantilevered strut arm instead of relying on the channel joint alone. It is steel, 1/4 inch thick, and runs 12 inches along its length, which is what gives you room to set the brace angle anywhere along the slot.

Six holes total: one 7/16 inch diameter hole, plus four slots measuring 1 inch long by 13/32 inch. The 7/16 inch round hole is the pivot point for the brace, and the 1 inch slots let you slide the fastener to pick up an existing strut nut position without redrilling. Standard 3/8 inch strut hardware passes through both the 7/16 hole and the 13/32 slots.

The B178SHRZN is the right bracing bracket. If your brace runs the opposite direction off the strut, you need the left-hand counterpart in the same Eaton B-Line series rather than flipping this one, since the slot layout is handed. On symmetrical installs where braces run both ways off a single run, order the handed parts in matched quantities.

The B178SHRZN carries an electro-plated finish, which is a light zinc coating meant for dry indoor service, mechanical rooms, and covered interior runs. It is not the finish to spec for exterior exposure, wash-down areas, or corrosive process environments. For those, go to a hot-dip galvanized or stainless strut fitting in the same bracing configuration.

The B178SHRZN is sold as the bracket alone. Channel nuts, hex bolts, and washers are ordered separately, so plan on 3/8 inch strut hardware to suit your channel and count two to three fasteners per bracket depending on how many of the six holes you pick up.

Order it as B-Line B178SHRZN. That is the manufacturer part number for the right-hand slotted bracing bracket, 1/4 inch steel, electro-plated finish. There is one configuration, so no finish or size suffix is required when you quote it.

1.43 lb each. On a trapeze or seismic brace schedule with dozens of these, that dead load adds up and should go into the hanger calculation, but on a single support it is negligible next to the 1/4 inch steel section's own capacity. The bracket measures 3.43 inches high, 12 inches long, and 1.62 inches wide, so the 1.62 inch width sits within a standard 1-5/8 inch strut channel face.

Certifications are marked Not Applicable for the B178SHRZN. It is a mechanical steel strut bracing fitting, so what governs its use is the engineer's support detail and the load table for the strut system it goes into, not a product listing. If your spec calls for a listed seismic bracing component, confirm the detail against the system documentation before substituting.