Tamper resistant screws with head height of 1.5mm or less.
This prevents mounting and removing with regular tools. The low head height makes it difficult to remove the screws by grasping the head itself, making them excellent for theft prevention.
After mounting these do not protrude by much, so they do not affect the appearance.
Install and remove with SRSHB Dedicated Bits and SRD Dedicated Magnetic Screwdriver together.