Does anyone know whether what the Americans call NC is what we'd call UNC ? They look the same, and smaller sizes are both called 10-24 or whatever, but I'm a bit of a novice and not wholly confident of my efforts at measurement.
Reason is I've bought a large set of Snap-on taps and dies (reasonably priced, bargain even), but may not have bought what I thought.
Thanks Hywel
(I only use this email for sending so reply-group)
both are identicle, same thread angle pitch etc, AFAIK the "U" is something that us brits put infront of the NC and NF
In the 3D CAD software i use at work it only lists NC & NF threads and from experiance i know these are the same as their UNF / UNC equivs
HTH
Tim
AFAIK the UNC/UNF thread standard calls for rounded roots and crests of the threads, rather than flat of NC/NF standards. The nuts and bolts fit each other.
Thanks - looks like I haven't bought a pup them, despite breaking one - bugger ! Also further experiments have confirmed they are indeed the same (or compatible anyway) in practice.
Cheers
Hywel
measurement.
The U stands for Unified. kernow
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