Odd screw head

[Johan nöjd]

Anyone know how to remove these? I have an entire pergola built with them and can't find a good way to get them out. They look a bit like a four-leaf clover. The ones that were a bit looser I've managed to get out with a regular Phillips bit.

 

[Henrik 75]

https://wiha.com/se/sv/kunskap/skruvprofiler/#aussen4k

I think you'll find it here. I have such ones at home but I don't remember what it says on them.

 

[Matti_75]

It is a Pondusskruv from Ejot & Avdel and they have their own bits. Check with someone who sells such screws if you can buy such a bit.

 

[Stefan1972]

otherwise it looks like a "regular" square bit should work. It does depend on the dimension though if it will be tight enough.

 

[Tjrex]

The correct bits are called KA3.
Newer pondusar have regular torx though.