Screws

[flyguide]

I was at a garage sale the other day and found these screws. Anyone need some?

[Roly Nelson]

Looks like they are self-drilling, self tapping, and require countersinking. I wouldn't trust them over a bolt and locknut method. I had some fail on a vintage trailer that I rebuilt. Never again!
Roly~~

[GuitarPhotog]

We used those, called "TekScrews" to attach metal studs to red iron structural beams. Didn't countersink them but they worked self drilling through 1/8" steel beams.

<Chas>

[MtnDon]

They appear to be waferhead metal screw. No countersink required whenused to fasten plywood or softwoods to metal frameworks.

[Dale M.]

Also used for attaching deck lumber to trailer beds like for car carriers.... My car carrier uses them to secure boards at mid point along length of bed..

Dale

[dales133]

Ive used similar waferheads for alot of things,most recently pipe saddles onto the trailer frame