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What are these self tapping screws called that form "real" threads?
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Gunner Asch[_6_]
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What are these self tapping screws called that form "real" threads?
On Fri, 26 Jun 2015 13:24:03 -0400,
wrote:
On Fri, 26 Jun 2015 00:34:23 -0700, Gunner Asch
wrote:
On Thu, 25 Jun 2015 22:18:04 -0700, Larry Jaques
wrote:
On Thu, 25 Jun 2015 21:16:30 +0800, Techman
wrote:
On 25-Jun-15 7:55 PM, Lloyd E. Sponenburgh wrote:
Techman fired this volley in
:
https://dl.dropboxusercontent.com/u/92240200/Tapping%20Screw%20(2).JPG
Techman, I think you're not 'getting it'.
Even our CONSUMER big-box hardwares carry just what you want. Home Depot
(of all places) carries M4-0.7 self-tapping screws.
What you describe as "coarse-thread self-tappers" are truly "sheet metal
screws".
Lloyd
I'm in Australia, our hardware stores are 20 years behind yours! They
don't carry anything like them - only standard sheet metal screws and
self drilling/tapping roofing sheet bolts.
Only 20?
I've found out today I can get them via RS Components.
Oh, darn. That means you won't have the joy of jigging up small
screws into a fixture in your vise and cutting the self tapping groove
with a file on each screw.
Dremal type tool and a decent cutoff wheel will work for that, in a
pinch.
Been there, done that more than once.
Gunner
But they pretty well have to be grade 8 or harder unless you are
using them in anealed aluminum or leaded steel--------
Or thin mild steel. Ive used them to secure cover panels on various
electrical cabinets, none of which were thicker than 1/4"...and
anything over 1/8"...you best be having a really healthy driver to get
em in. Ive driven them with a 1/2" Milwaukee "hole shooter" well
enough..with a good snug properly made phillips bit.
Gunner
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