What are triangle head screwdrivers called?

Question

I need a triangle head screwdriver to take apart this remote control car i'm trying to mod for a class project, but I need to know what it's called so i can ask radioshack if they have any.

Answer 1

Tri-wing tamper resistant or security s***w head.

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Answer 2

It's called a non-removeable s***w. Ask for a Tri-wing screwdriver to remove these non-removable screws.

Answer 3

i think ur talking about a small phillips

Answer 4

Ask them for a triangle head screwdriver.  

It's definitely NOT a Philips, a Philips is a + shape.