iPhone 12 Board Shield Screw/Standoff Mix-Up

Hi everyone,

I’m almost finished successfully replacing the housing on my iPhone 12, but I’ve run into an issue with the screws and standoffs near the upper left corner of the logic board (where the shield plate secures).

Here’s the photo of the screws/standoffs I’m working with:

The standoff on the top left in the photo matches the screw on the bottom left, but that standoff doesn’t actually fit into the phone.

The standoff on the top right in the photo fits perfectly inside the phone, but the screw on the bottom right is the only one that threads into it — and as you can see, the head is way too tiny to properly hold down the shield plate.

So I’m stuck with either a standoff/screw pair that doesn’t physically fit the phone, or one that fits the phone but uses a screw that’s clearly wrong for the job.

Could anyone clarify which exact standoff/screw combination is correct for this spot, or point me to a diagram/photo showing how this area should look when properly assembled? I’m using a separate aftermarket screw set, but it may be missing the exact screw or standoff I need. I got the phone with those screws already lost, so I’m just trying to put it all back together as it’s supposed to be.

Thanks so much — this is one of the last steps holding me back from finishing the repair!