Gentlemen:
Below is a copy of my reply to Healeyman Jim a couple of days ago - should
have copied the List as well, but didn't:
Jim:
It's 4 - 40. I had to find / make a new one for my glove box lock earlier
this year. Hard to find - I wound up buying a small pack of 6 (I think) at
a hobby supply store -they were socket head, and I had to mess around with
it to get it right. The original was probably 1/8" long, I ground mine down
so it would not protrude beyond the wall of the cylinder case and foul the
lock barrels rotation. Picky crap, but it all worked well in the end.
It's possible that someone before me had modified the threads for the screw,
but I doubt it. (I've owned the car for 33 years). The 4 - 40 screw worked
perfectly, so I assumed that it was the original thread size.
Michael, you might check your existing sample with a handy 4 - 40 screw and
settle the argument - I for one would like to know, since I wouldn't want to
have given Healeyman Jim a bum steer!
Earl Kagna
Victoria, B.C.
BJ8, BT7 tri-carb
----Original Message-----
From: Michael Salter
Sent: Saturday, December 28, 2013 9:14 AM
To: healeymanjim@hansencc.net
Cc: healeys@autox.team.net
Subject: Re: [Healeys] set screw
Hi Jim,
As far as I can tell it is an 8BA thread. The OD of the one I have is
0.083" and it looks like around 58 TPI, bit hard to measure without a
comparator.
8 BA is 0.0866 OD and 59.1 TPI
Unfortunately the smallest BA tap I have is 6 BA so I cannot check the
female thread for you.
1/16 and 52 British Cycle threads are also close but I would bet on the 8BA
as it is the closest.
Michael S
BN1 #174
BTW I have a complete BJ8 glove box c/w key that I will sell for 50% of the
MM price.
On Wed, Dec 25, 2013 at 10:00 PM, <healeymanjim@hansencc.net> wrote:
> what is the size of the set screw that holds the cylinder in the glove box
> lock? TIA hjim
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