Conical Plug For M20 Screws, Ød15.9 to ØD20.6, 25mm Long, Silicone (Tea), Pack of 10, HBAS206-P
SGD $22.00
Conical plugs can be used for a range of hole diameters. Choose one with the right top and bottom diameters to fit the hole size. Simply leave enough length clearance for easy installation and removal.