Awl--

One of the follies I'm building req's fastening to a door buck/jamb.

Wood door jambs are no problem, as all my device requires is a
flat-head-type screw for installation.

Metal doorbucks would seem to be as simple, as flat-heat sheetmetal screws
are no problem.

But are std sheetmetal screws the best choice for metal doorbucks (16 ga, I
assume?) ?
I recall "chassis screws", which were like 32-pitch machine screws w/ a tap
on the end! Somehow these seem more reliable to me. Opinions? I haven't
seen these in years, tho.

I'm also thinking sheetmetal screws w/ a larger major to minor diam ratio
would hold better (deck screws vs. sheetrock screws?), but I don't know
what's generally available.

Since in sheetmetal there's not a lot really grabbing the screw, in addition
to pullout, I worry about "shakeout", which mebbe a silicon-rubber sealant
type deal would fix, whilst still rendering the screw removeable. Loctite,
I think, needs more thread-to-material contact.

The real bummer are these metal bucks filled w/ concrete!!! Goodgawd....
I've seen something called TapCon screws which can sposedly thread into a
pilot hole drilled in concrete. Anyone familiar w/ these? I hope I can
find them as small as #10 or even #8.

Iny ideas, leads, sources would be much appreciated.
----------------------------
Mr. P.V.'d
formerly Droll Troll