"harry" wrote in message
...
On May 15, 5:28 pm, "Andrew Mawson"
wrote:
"Robin" wrote in message

...





Andrew Mawson wrote:
I need some LARGE wood dowel screws - the double ended
wood
screws the small variety of which are often used to fix wooden
knobs
to doors.

I'm joining 5"x5" timber baulks upright onto 10"x5" oak railway
sleepers, so need perhaps 10mm or 12mm diameter and maybe 100 mm
long.

An idiot boy question (again) from me. Just out of interest, how
would
you use the double headed screws? I've so far totally failed to
see
how
you could use more than one per upright since so far as I can see
you
have to rotate the upright (or the sleeper!) in order in order to
tighten it.

Robin,

They need to be big and meaty as there will only be one up the
centre
of each upright. Hole drilled in sleeper and the upright, screw
inserted in holes, upright rotated by large custom made wooden
spanner. Handrail will stop them rotating.

AWEM- Hide quoted text -

- Show quoted text -

You can buy metal brackets to do this job. The screw will not be
strong enough, I think your posts. will split with any side loads.
Or cut mortices into the sleepers.

Have you tried cutting numerous mortises in 50 year old well seasoned
oak! These are unbeliveably hard oak sleepers.

AWEM