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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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What are these self tapping screws called that form "real" threads?
I'm looking for some screws for use in production work.
*Sick of tapping lots of M4 and M4 holes. *Used for attaching small brackets and DIN rail etc. *Fixing to to mild steel 3mm thick or to 1.6mm thick Zinc Anneal sheet. I've seen screws like in the links below but am having trouble finding them. When I look for self tapping screws I find the coarse thread type rather than the defined M4x0.7 or M5x0.8 threads. Is there a proper name for these screws: https://dl.dropboxusercontent.com/u/92240200/Tapping%20Screw%20(1).JPG https://dl.dropboxusercontent.com/u/92240200/Tapping%20Screw%20(2).JPG Thanks. |
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