Masking Cap For M3 Screws, ID 2.8mm x OD 5.8mm, 12mm Long, Silicone (Yellow), Pack of 10, HLAS28-P
SGD $4.40
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.