25, SMALL (6g 8g SCREW SIZE) ELECTROPLATED POLISHED CHROME SCREW CAP COVERS * 5057708192396 | eBay
LARGE PLASTIC HINGED SCREW COVER CAPS BLACK, YELLOW, WHITE, GREY, BROWN, BLUE | eBay
200PCS Rubber Caps Bolt Screw Cap Covers, Bolt Covers Caps Rubber End Caps Vacuum Caps, Bolt Screw Cover Rubber Nipple Cap Rubber Tip in 10 Sizes from 2/25 to 4/5" for Protecting
2 PIECE PLASTIC DOME SCREW COVER CAP CHROME WHITE BLACK BROWN - PLASTIDOME CAPS | eBay
How to install a screw cap cover - YouTube
FastCap White Plastic Self Adhesive Screw Cap Covers (Box of 1060) - - Amazon.com