Using 4000 series logic to drive....?

they are brittle and have little shear strength, proper screws for structural stuff are tougher and have thicker shanks

If your picture frames are structural, you could be in for a world of hurt.

Do some research. They sell structural screws for a reason. Sheetrock screws aren't them. They will *NOT* hold.

On Tuesday, 8 August 2017 01:19:10 UTC+1, Lasse Langwadt Christensen wrote :

e:

uilding

ws.

are

lar,

is.

ffering a design screw up. For a given size a sheetrock screw handles more load than a nail.

ural stuff are tougher and have thicker shanks

First they're not brittle, they bend when pushed to the limit like any othe r steel screw. They are however harder and thinner, so can shear at a lower force, like any thin screw. Like any screw or fixing it is merely a matter of not pushing them to unsafe loads. If you do, you need to reevaluate wha t you're doing.

NT

Millions of poeple here have many tonnes of them doing structural tasks. And they do hold.

NT

Only damned fools.

The broken ones don't.

Yeah, I've got a couple of big 'uns in the basement. Too pretty to throw away. But, too big to populate, too.

You're both half-right. Sheetrock screws ARE structural, because sheetrock accounts for more than half the crush strength of a load-bearing wall. It makes a lovely engineering-open-house demonstration at the 2kton hydraulic press.

Nails are acceptable for a lot of wood-joining applications that sheetrock screws are NOT good for, and the inspector will know the difference.

seems to be worth a bit of money,

I had some with 6000 wires on them, all hand wrapped. My technician loved me (newly married kid, wanting all the overtime he could get ;-).

Maybe on your side of the pond ?>:-} ...Jim Thompson