Hammering screws

Yeah the gits who installed my CH hammered screws home when they put the floorboards back down...they also got hammered with a bill for the cost of repairs to the ceilings below ie bits of plaster and cracks on the kitchen and living room.Tossers

You mean the tool known as The Birmingham Screwdriver? They come out more easily for reasons one would hope were obvious.

As you said - "they come out easier than screwed in ones". which means they are not doing their job properly.

Mechanise. Impact driver, autofeed screwdriver. Average deck I build has

A bunch...

Higher insertion force / noise / vibration damage etc compared to a nail.

Higher cost than nails.

Lower pull out resistance than a screwed screw.

Case hardened screw more likely to shatter on hammering - and less toughness than a wire nail.

Try getting out one that's got bent being hammered in!

So summarising the feedback, and adding my own conclusion, it seems you agree that hammered screws are intermediate between screwed screws and nails.

Pullout resistance: intermediate Problems when inserting: much less often than nails Removal effort: harder than nails, easier than screwed screws Cost: material cost as screws, labour cost as nails.

just treated them like tough gripping nails, used a prybar, and had less problems than with nails.

NT

Can be difficult to get started when removing. A nail remover doesn't easily get under a fully countersunk head. And a screwdriver sometimes does nothing useful - even if the head isn't damaged beyond use.

I suspect that parallel screws are probably a touch better in this regard than old-fashioned slightly tapering ones. With a taper, if they pull out at all they will be very loosely held.

We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember snipped-for-privacy@care2.com saying something like:

Do you mean the ones that are designed to be hammered in - the lightly twisted thread? If so, I've not had any real problems with them where they are meant to be used, as in holding corrugated iron sheets on, etc.

Or do you mean hammerfix frame fixers? Same goes.

If you mean hammering in ordinary screws - it's a daft idea.

the latter. I've been doing loads of it, and it works very well.

NT

Go & stand in the naughty corner until told to move.