M2 size. Two lengths are available.

8mm

Can use with the aluminum mounting clips for Ultra Thin LED Light Bar.

⇒ Ultra Thin LED Light Bar
⇒ Aluminum Mounting Clip

12mm

Can use with the tube mounting clips for Tri-chip LED Tubes.
⇒ Tri-Chip LED Tube
⇒ Tube Mounting Clip

When you order a quantity of "1", you will receive Ten screws.