B-Line B177SHRZN Eaton series strut fittings and accessories, 7.93" Height, 30" Length, 1.62" Width, 5.20lbs, Steel, Right bracing slotted bracket, Thickness 1/4 in, Electro-plated

The B177SHRZN is a right bracing slotted bracket from the Eaton B-Line strut fittings line. It is the diagonal brace member you add to a strut frame or trapeze run to triangulate it and stop racking. Being a right-hand bracing piece, it runs the brace off to one side; the mirrored left-hand version is the one you want for the opposite leg of a frame.

It measures 30 inches on the long axis, with a 7.93 inch height and 1.62 inch width. That 30 inch leg is what sets your brace geometry, so lay it out against your strut spacing before you drill or cut anything; a shorter run will leave the slots hanging past the channel.

Six holes total: one 7/16 inch diameter round hole, plus four slots of 1 inch length by 13/32 inch. The 13/32 slot width takes 3/8 inch strut bolts, and the slot length gives you adjustment to pick up the brace angle without perfect hole alignment. The single 7/16 hole is the fixed pivot point.

The finish is electro-plated (electro-zinc), which is a thin indoor-duty coating. It suits dry interior mechanical rooms, ceilings and equipment rooms. For outdoor runs, parking structures, wash-down areas or anywhere chronically damp, go to a hot-dip galvanized or stainless brace instead; electro-plate will rust through in that service.

No. B177SHRZN is the right-hand bracing bracket. Bracing brackets are handed, so a frame braced on both legs needs the matching left-hand piece as a separate part number. Order in pairs if you are triangulating both sides of a trapeze or rack.

5.2 pounds per piece, formed from 1/4 inch steel. That is a heavy structural brace rather than a light sheet-metal angle, which is why it holds up in trapeze and rack bracing. Count the weight into your total hanger load when you are sizing rod and anchors for an overhead run.

You are buying the bracket alone. Strut nuts, bolts and washers are separate line items, so order the 3/8 inch hardware to suit the slots and the channel you are fastening to.