Middle Atlantic Brass Screw PLG PLT - 828SPTC

Middle Atlantic 828SPTC Brass Screw Cover Plate

Overview

The Middle Atlantic 828SPTC is a brass screw plug cover plate sized at 3.25 in (W) × 4.25 in (D) × 0.25 in (H) — a low-profile finish plate for the Source-I concrete floor box line. If you're completing a structured cabling rough-in under a raised or slab floor and need a trim piece that sits flush and stays put, this is the part. It closes off unused knockout openings or completes the finished appearance of a floor box installation where a screw-retained cover is specified. The slim 0.25 in profile keeps it essentially flush with the surrounding floor surface, reducing trip hazards in high-traffic areas like conference rooms, collaboration spaces, or open-plan offices. TAA compliance is not applicable to this SKU.

Compatibility

The 828SPTC is designed for use with Middle Atlantic Source-I concrete floor boxes. Verify your floor box model accepts the 828SPTC cover plate footprint (3.25 in × 4.25 in) before ordering — this plate is specific to the Source-I series and is not a universal fit across other floor box families or manufacturers. If you are building out a structured cabling infrastructure with multiple floor box positions, confirm each box position calls for a screw-type plug plate versus a hinged or flip-lid cover; mixing cover types on the same installation creates inconsistent finishes and potential warranty issues with the floor box assembly. For broader AV and infrastructure accessories in the Middle Atlantic line, cross-reference the Source-I configuration guide to confirm knockout sizing and plate compatibility.

Installation Notes

At 0.25 in tall, the 828SPTC sits nearly flush with finished concrete or tile — account for any grout or leveling compound that could interfere with seating the plate flat. Brass construction means it will resist corrosion in environments with minor moisture exposure, but it is not rated for wet locations. Install with fasteners appropriate to the Source-I box's screw boss pattern; no specialty tools beyond a standard screwdriver are required. Do not overtighten — brass threads strip more easily than steel.