Quarter panel vent screws?

[Tinkerr]

I have AMK interior kit and it came with 2 screws for the Qrt. vents. They are chrome with sealer on them. The repo vents from D&R came with 2 black phosphate screws with a broad head resembling a washer. Which screw is correct? Thanks Paul

[KevinW]

I say the chrome ones

[william]

Black phosphate.

[Jon Mello]

Car & Driver road test of '68 Z/28 shows chrome screw.

[william]

69s were black.

[Jon Mello]

This is what came out of my '68.

[Jon Mello]

This came out of the same car on the passenger side. This is an 07B LOS car.

[Tinkerr]

I think I'm going with the chrome. Jon that screw in the last pic. looks like they used whatever they had handy. The vent surface is flat, one would think the screw surface should be flat also. There's no accounting for what happened on the assembly line. Thanks Paul

[Jon Mello]

Makes sense, Paul.  Glad to be able to help.

[68camaroz28]

Pics I posted #30 on “details of a 68 RS Z28” show a zinc screw. Late built NOR car.

[169INDY]

Using the AMK book; Tapping screws, Round, Round washer. 8-18 x 1/2" with 0.28"OD
AMK only offers in phosphate, mine are zinc, with chisel point rather than the std. tapered tapping thread.

Mine are just like Johns upper photo
LOS 12E 1968