RS PRO Plain Stainless Steel Hex Socket Countersunk Screw, ISO 10642, M5 x 20mm Pack of 50

Various thread sizes available, including M3, M4, M5 and M6

Good corrosion resistance

Countersunk – the head does not stick out so that nothing can hit it and interfere with the operation of the application

Also used in many internal joinery applications

Requires an Allen key