Masking Cap For M4 Screws, ID 3.6mm x OD 6.6mm, 25mm Long, Silicone (White), Pack of 10, HLAS36-2-P
SGD $6.60
The most basic masking cap, our GA series is cylindrical and able to protect the most commonly used screw hole diameters. In addition, there is a wide range of sizes to mask even holes with odd sizes.