Identifying PZ and PH screw

[john2k]

I have the following two screws pictured below and the instructions say to put the PZ1 screws in one section and the PH 2 screw in another. I can’t tell which screw is what. I tried putting a pz1 bit on both screws and the pz1 head sits firmly on both so I’m even more confused. Can anyone help identify what screw is PZ and which is PH? Left to right ?

Thanks

 

[denso13]

They both look like PZ screws.

Pozidriv vs Phillips: What's the Difference?

Find out the difference between Pozidriv and Phillips screw heads. Discover why they are different and also how to identify the differences between the two.

shop4fasteners.co.uk

 

[john2k]

They both look like PZ screws.

Pozidriv vs Phillips: What's the Difference?

Find out the difference between Pozidriv and Phillips screw heads. Discover why they are different and also how to identify the differences between the two.

shop4fasteners.co.uk

That’s even more confusing. It’s a Geberit Infrared touchless flush sensor back box system that I need to install and it comes with 4 screws. Two short ones and two long ones and the instructions are illustrations only and I’ve attached the two reference it makes to the screws.

I’m assuming I need to go based on length maybe but it’s hard to tell which screws in the pic are longer lol

 

[denso13]

One is shown as pan head and one countersunk in the illustrations. Go with that, it is what you have in your hand.