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Brass floor screws.

Posted: Wed Aug 25, 2010 12:51 pm
by RobThomas
Any ideas how to describe them, technically? The ones holding the gearbox cover in place. Oval or buttonhead/countersunk?

Also, how many of each length are normally required for each car? Mine is (still) away and I'm working through booxes of bits in order to get things painted, polished and bagged before the shell comes back.

Re: Brass floor screws.

Posted: Wed Aug 25, 2010 4:25 pm
by Dean
Lots of them are required, is that accurate enough? I think there is about 32 in total, but there are two different lengths, I'm sure four of them are about 1/4" longer than the rest. You also need washers... her is an ESM link to the correct ones.

http://morrisminorspares.co.uk/shop/pro ... 16cbc7b378

http://morrisminorspares.co.uk/shop/pro ... 16cbc7b378

http://morrisminorspares.co.uk/shop/pro ... 16cbc7b378


You win need something to seal between the two mating surfaces, I used some U shaped rubber pushed over the edge of the gearbox cover. If you want originality you'll need something flat like this:

http://morrisminorspares.co.uk/shop/pop ... 16cbc7b378

Re: Brass floor screws.

Posted: Wed Aug 25, 2010 5:26 pm
by mike.perry
I think there are 23 including 4 long ones which hold the gearbox cross member.
I have replaced them with bolts on my MM which can be removed with a socket

Re: Brass floor screws.

Posted: Wed Aug 25, 2010 5:44 pm
by silloyd
By the look of the screws in the links above, these are what are termed as 'oval' headed machine screws http://media-2.web.britannica.com/eb-me ... 6BF37A.gif

Re: Brass floor screws.

Posted: Wed Aug 25, 2010 9:52 pm
by les
They are actually raised countersunk screws!

Re: Brass floor screws.

Posted: Thu Aug 26, 2010 9:06 am
by Ratbag
Anyone - what size are they? BA I assume?

Re: Brass floor screws.

Posted: Thu Aug 26, 2010 10:09 am
by HarryMango
They are 1/4 BSF

Rog

Re: Brass floor screws.

Posted: Fri Aug 27, 2010 9:25 pm
by taupe
Yes

1/4" BSF brass or phosphor bronze phillips recess countersunk machine screws with fillister head.

Quite a long description required!!