20 Pack Metal Electrical Box Cover Plate, Galvanized Steel, 1/2 Inch Knockout, Surface Mount, Silver, Compatible with 4x4 Metal Box

PACKAGE CONTENTS: Set of 20 galvanized steel electrical box cover plates designed for 4x4 metal electrical boxes with 1/2 inch knockout holes | MATERIAL & FINISH: Constructed from durable galvanized steel with a professional silver finish for long-lasting performance | COMPATIBILITY: Surface mount design perfectly fits standard 4x4 inch metal electrical junction boxes for versatile installation | DIMENSIONS: Each cover plate is precisely sized to match 4x4 inch electrical boxes with pre-marked 1/2 inch knockout openings | INSTALLATION TYPE: Surface mount application allows for quick and straightforward installation on metal electrical boxes