Hey everyone! First time poster in these groups, thanks in advance for any help.

I need to remove a wood panel that was installed in my house (it's covering some water pipes I need to access), but it was installed using screws that I'm not familiar with (see pictures). They look like a 6-pointed star, and the star measures about 1/8-inch across. I thought it might be a security T, but there's no circle in the center of the star. If anyone knows what this is and/or what type of screwdriver I need to remove them, it would be greatly appreciated!