1/2-5 acme thread
1/2-5 acme thread
(OP)
I am having trouble finding taps or thread mills to cut a 1/2-5 acme 2G thread. This thread is awful coarse for this size hole. Can you cut a 1/2-5 internal thread or is this impossible. Thanks for any help in advance.





RE: 1/2-5 acme thread
Because according to ANSI B1.5 that is not a standard size.
so you will have to special order them, if it can be made.
not sure with out drilling down deeper into the calc's.
contact a company who specializes in fabricating Taps.
They can tell ya if it can bedone.
RE: 1/2-5 acme thread
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Ted
RE: 1/2-5 acme thread
mfgenggear you are right this is not a standard thread and everyone has no quoted building the special tooling because it is so course for the dia.
RE: 1/2-5 acme thread
Software For Metalworking
http://closetolerancesoftware.com
RE: 1/2-5 acme thread
if the vendors (Tap & die mfgs ) are no quoting then there's a problem. The design is FUBAR.
RE: 1/2-5 acme thread
Perhaps you could talk them into a double-start screw. This would give you the required lead (.200 per rev.) yet would yield normal-depth threads. It would look like a standard 1/2-10 Acme thread, but with a steeper helix.
Don
Kansas City
RE: 1/2-5 acme thread
Don
Kansas City
RE: 1/2-5 acme thread
as they have them drawn so i am going to try and single point thread mill them. thanks for everyones help
RE: 1/2-5 acme thread
This place has 1/2-5 ACME 2G cylinder nut, you could buy and cross-pin/weld/etc... into your part if possible.
http://www.greenbaymfgco.com/catalog.php?cat=1
Scroll almost to the bottom, P/N 2040-16
(FYI I have no affiliation with Green Bay MFG, but I have bought from them before).
--Jay
RE: 1/2-5 acme thread
Western Tap in California
1-eight hundred -253-eight 2 77