On Mon, 15 Jun 2009 23:37:15 +0100, Dave wrote:

Steve Walker wrote:
On Sun, 14 Jun 2009 19:44:34 -0700 (PDT), NT wrote:

Another one to play with:


There are 2 main types of '''Rivet'''
* Solid metal rivet, fitted by hammering
* blind hollow rivet

There's also a type that I have used in the past that have a domed head and
a shank with a grooved twist (like externally rifled solid rivet) that are
simply hammered into an accurately sized hole through the two pieces of
metal. The end is not hammered over.

Just did a google for hammer drive screws and came up with

http://www.toolfastdirect.co.uk/acat...ound_Head.html

Dave

Ah, that looks familiar. Glad you remembered, it was in the early eighties
that I used them - around the smokebox of a 5" gauge Simplex loco that I
was building with my father. It's a pity we never finished it - we got it
running on compressed air, but didn't trust our silver soldering skills and
couldn't afford to buy a ready-made boiler. I did suggest that now he's
retired he should buy a boiler and get it finished for my kids, as we've
got a handy 2200 foot track (that I helped build) less than half a mile
away from here.

SteveW