View Full Version : Trapezoidal metric taps!!

11-26-2002, 07:27 PM
Does anyone have a source for metric trapezoidal taps/or any info on making these.
I run across them from time to time on some German equipment.
ps I did get a price from germany and it/they were very $$

11-26-2002, 08:07 PM
I assume you have a source for metric trapezoidal drills?

11-26-2002, 10:29 PM
I know the rest of yu know, but what is a trapezoidal screw?

I see those funny three sided screw, but i figured they were self tappin'

Dr. Rob
11-27-2002, 12:35 AM
Acme thread. (Section of thread form = trapezoid.)
As opposed to paranoid hemhorroid screws which require another hole preparation H altogether.

11-27-2002, 07:09 AM
www.e-taps.com (http://www.e-taps.com) is a good source for metric taps.


11-27-2002, 09:10 AM
Guess it all depends on your point of view. Was trying to figure out howinhell you turned them in that funny hole.

11-27-2002, 12:45 PM

Try a search on www.thomasregister.com (http://www.thomasregister.com) you should be able to find them - try "Metric Taps"

They also have a global search as well http://www.TGRnet.com/

Happy hunting.

11-27-2002, 02:48 PM
JCH: I think i was thinking as you. Remembered those three sided screws, have been intending to take one to the kid at Ace Hard ware, and ask for a drill/ tap for that screw and play dumb when he made up his answer.

11-27-2002, 04:51 PM
doc, he'll just tell you that you can't get them anymore. Stock answer around here.

11-28-2002, 01:57 PM
Naw, JCH, these guys are more creative. Needed some "split pin dowells, roll pins". I had half dozen names that I have seen them called. Went to the kids, asked for them by all the names I could think off. Got a puzzled look. Old Codger says lets look here. Box had one of the names I called them, bin had another of the names I had used, Old Codger had couple other names. Kids says "Old codger tole me they were xxxxx" Old C and I say- man you gotta understand the customer may not speak your language - you gotta learn the customers". So help me kid says he learned in HIGH SCHOOL to call things by the proper name or you don't get what you want . http://bbs.homeshopmachinist.net//smile.gif
Last time I was there the OC was still there the kid had probably gone on to a place where they have pictures and a common vocabulary (McDonalds?).

Can't beat 'em won't join 'em, never surrender!