Door Striker plate mounting screws are 5/16" x 18 x5/8 PZ4 Pozidrive countersunk heads;like a phillips

[P47JUG]

I need a pozidrive screwdriver bit 1/2" socket or a pozidrive PZ4 bit.
The drive part looks like a Phillips head but has 4 major slots and 4 minor slots shifted 45 degrees.

Two of these mount the door striker plate on 64,65,66 TB;
it is 5/16 Diam. x 18 threads per inch x 5/8" L with a countersunk head that has
the POZIdrive instead of just Phillips or allen hex or star hex.
Found Pozidrive bits on web for only 1/4" hex drive shaft with PZ4 pozidrive tip.
Thanks for any information.
How to add pix to this is not clear, thought it should be much easier.
Charlie Slack
65 TBird
Austin, Giddings , Texas
p61blkwd@gmail.com

[stove]

Can't fathom why you'd need 1/2 drive for this... But here is a 3/8 drive alternative.
https://www.ebay.com/itm/Blue-Point-PZ4 ... :rk:4:pf:1

[RedBird64]

I used an impact driver with philips. Worked great!

[stove]

American seller... https://www.ebay.com/itm/Blue-Point-4-P ... 4#viTabs_0

[tbird]

The correct screws used by Ford are a #3 or #4 Philips.

[stove]

The correct screws used by Ford are a #3 or #4 Philips.

Nope, they are #4 Pozidriv

https://en.wikipedia.org/wiki/List_of_s ... s#Pozidriv

[Joe Johnston]

https://en.wikipedia.org/wiki/List_of_s ... s#Pozidriv

That is a great descriptive link.

[P47JUG]

Thanks to all for the responses, especially the Wiki page on screw head details. Familiar with many of them,
but the pozidriv was new after working on my door latches. I used the 1/2" socket drive because the #4 Phillips tip I found was a 1/2" drive socket. Heavy duty #4 Phillips tends to round the head slots , that's why I was looking for the right tool, the pozidriv.
Have to order the right one, couldn't find locally.
Thanks also for the "How To" on attaching photos to our messages. Much better!!

P47JUG
Charlie Slack
65 TBIRD
Austin, Giddings, Texas