Geoff
Thanks for your thoughts and experience. Yes I am rebuilding a ash timber
frame and had experienced exactly what you said. On trial fit I used 2
#10 screws an found the joints to be weak. After stripping out a hole I
moved up to on # 12 and the joint was much stronger. It was that
experience that raised the question. As for brass screws I avoid them in
ash since they appear break off so easily. Luckily # 12 screws are still
available here in the US but Phillips head appear to be quickly replacing
the slot head
screws
Bob Nogueira
On Mon, 18 Jan 1999 02:15:37 -0000 "Geoff Holmes"
<Geoffholmes@btinternet.com> writes:
>Now this should be interesting, to hear what others say. I haven't
>heard of a formula for screw gauge, but my engineering background
>suggests using a greater number of thinner screws - say 5 of #6 in
>preference to 2 of #10 - in order to spread the load. That said, I
>recently rebuilt the ash frame on my own conveyance and found that the
>opposite was the case, with screws as extreme as 3/4" x #12 being
>used, which are no longer available in the UK. Perhaps that had
>something to do with production costs. You don't say, but if your
>question relates to rebuilding a timber framed vehicle body, don't do
>what I did, and use brass screws. Steel screws rust, and more or less
>lock the joint in place; brass screws don't, and keep coming loose.
>
>Hope this helps
>Geoff Holmes, Oxenhope, Keighley, W. Yorks, UK
>geoffholmes@btinternet.com
>-----Original Message-----
>From: nogera@juno.com <nogera@juno.com>
>To: shop-talk@autox.team.net <shop-talk@autox.team.net>
>Date: 17 January 1999 17:25
>Subject: Wood Screws
>(cropped) When should you use a # 10 screw rather than a # 8 ?
>>
>>
>>Thanks
>>
>>Bob Nogueira
>>
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