B-Line B129PAZN Eaton series strut fittings and accessories, .23" Height, 3.5" Length, 1.62" Width, .37lbs, Steel, Two hole splice plate | Pre assembled, Thickness 1/4 in, Electro-plated

It's a flat steel splice plate used to join two lengths of strut channel end to end. Two holes, pre assembled with the hardware, so you lay it across the joint and bolt through into the channel to carry the run past a butt joint. Eaton B-Line part number B129PAZN.

The plate measures 3.5 inches long by 1.62 inches wide by .23 inches high. That 1.62 inch width sits right on the face of standard 1-5/8 inch strut channel, so it lands flat on the channel face rather than overhanging.

It ships pre assembled, meaning the plate comes with its hardware attached rather than as a bare plate you have to kit out with channel nuts and bolts. Order it as one item per joint.

It's electro-plated steel, which is a plated indoor finish. For exposed exterior runs, washdown areas, or corrosive environments, specify a hot dip galvanized or stainless strut fitting instead. Dry indoor mechanical and electrical rooms are where this plated finish belongs.

Quarter inch material. That is the heavier end of strut fitting stock, so the plate is intended for structural joints rather than light trim work, and it stands the plate off the channel face by the full 1/4 inch where two plates meet.

A two hole plate puts one fastener into each side of the joint, which suits light to moderate runs and locations where the joint is close to a support. Where the splice falls mid span or carries real load, use a longer four hole or channel-nested splice so each side gets two fasteners and the joint resists rotation. The B129PAZN is the two hole version, 3.5 inches long.

.37 lb apiece. On a large strut run that's a useful number for freight and for loading calculations on a suspended trapeze, since a couple hundred joints add up fast.