If you buy a tap, be sure it's a "roll-tap," which (a) doesn't cut the
shavings you'll never get out, and (2) displaces the metal, thereby forming a
better thread in what little sheet metal there is.
Dick
----- Original Message -----
From: "Tony Duell" <ard(a)p850ug1.demon.co.uk>
To: <classiccmp(a)classiccmp.org>
Sent: Tuesday, April 02, 2002 3:03 PM
Subject: Re: Shoddy Hardware (Was: Re: WW fixtures (was Re: "New" PDP-8))
If find a
peecee screw that is still chewing or "seizing up" touch
bit of oil to the thread. Fixed for good.
Running a tap down the threaded hole and a die (correctly adjusted) over
the screw works wonders as well. Of course it's better to buy good
quality screws in the first place, but it's not always possible to
replace the hole (particularly not if it's in a PC case or a disk drive,
or something.
-tony