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slacko
 Post subject: taps & dies
PostPosted: Mon Sep 19, 2016 10:36 pm 
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Joined: Sat Jun 21, 2008 12:43 pm
Posts: 850
Location: Narellan NSW
what are the thread sizes in a mini
I don't think the 3/8 die nut I have is correct
most common ones please
1/4 3/8 7/16 1/2 9/16 unf , are these all 24 threads per inch ?
what is the treads per inch for unc ?


Thanks Mark
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simon k
 Post subject: Re: taps & dies
PostPosted: Mon Sep 19, 2016 10:50 pm 
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Joined: Wed Sep 08, 2004 9:27 pm
Posts: 15912
Location: Wodonga - Vic/NSW border
this'll do you - just google 'imperial tapping chart'

http://www.armstrongmetalcrafts.com/Ref ... Chart.aspx

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drmini in aust
 Post subject: Re: taps & dies
PostPosted: Mon Sep 19, 2016 10:52 pm 
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Joined: Fri Mar 19, 2004 6:19 pm
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Location: near Baulkham Hills, NSW
Unified threads-
1/4- NC 20, NF 28
5/16- NC 18, NF 24
3/8- NC 16, NF 24
7/16- NC 14, NF 20
1/2- NC 13, NF 20

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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slacko
 Post subject: Re: taps & dies
PostPosted: Mon Sep 19, 2016 11:01 pm 
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Location: Narellan NSW
thanks simon & Doc
I think one of my die nuts have been stamped wrong


Mark
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peterb
 Post subject: Re: taps & dies
PostPosted: Tue Sep 20, 2016 7:27 am 
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Joined: Sat Jul 23, 2011 8:17 am
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Location: san remo nsw
slacko wrote:
thanks simon & Doc
I think one of my die nuts have been stamped wrong


Mark

Nah, it'll be stamped right but threaded wrong :lol:
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drmini in aust
 Post subject: Re: taps & dies
PostPosted: Tue Sep 20, 2016 7:37 am 
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Location: near Baulkham Hills, NSW
Buy name brand (eg P&N) dies and taps, not cheapo no-name ones off ebay. :)

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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bluehishouse
 Post subject: Re: taps & dies
PostPosted: Tue Sep 20, 2016 8:23 am 
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I sell taps and dies and can confirm they screw them up regularly. Even suttons. And yes they thread them after stamping ha ha

Sent from my SM-G900I using Tapatalk

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