Heyco 2703 DP-875 7/8" BLACK NYLON HOLE PLUG (package of 250) Heyco Dome Plug, 6/6 Nylon .875" Mounting Hole Diameter, .125" Maximum Panel Thickness 1.015" Head Diameter, .453" Overall Height Closes unneeded panel holes, Quick & Easy Installation Convex, matte finish head tapers to thin edge, Locks firmly into panel