Conical Plug For M20 Screws, Ød16 to ØD20, 25mm Long, Silicone (Red), Pack of 10, HBAS200-P
SGD $20.00
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.