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Star Reloaders Discussion Forums => Star Reloaders => Topic started by: fc60 on September 08, 2010, 02:24:44 pm

Title: Primer Bushing Thread Size
Post by: fc60 on September 08, 2010, 02:24:44 pm
Greetings,

Does any one know the proper thread size for the Primer Punch Bushing, Item #26?

My best guess so far is 0.400-27 UNS, based on the three that I measured.

Nothing comes close in the Machinery Handbook.

I suspect buying a tap would be a major challenge.

Cheers,

Dave Wilson
Title: Re: Primer Bushing Thread Size
Post by: z_e_n on September 08, 2010, 10:08:05 pm
While we're on the subject of threads, i'm also trying to figure out the thread for the steel ball plug. Hope anybody can help. Thanks.
Title: Re: Primer Bushing Thread Size
Post by: SWANEE on September 08, 2010, 10:24:27 pm
Hi Guys, Not to sure the threads on the bushings but I do have some extras along with the punches, as for the ball plug I think it is a 1/2 x 27, I may have an extra of those too. Give me a PM if interested.
Title: Re: Primer Bushing Thread Size
Post by: fc60 on September 09, 2010, 11:25:48 am
Greetings,

I measured Item #54, Steel Ball Plug, and find it to be a 9/16-27 UNS thread. Sure glad my lathe cuts a 27 thread!

Cheers,

Dave
Title: Re: Primer Bushing Thread Size
Post by: askimball (Doc) on January 23, 2011, 12:44:48 am
fc60
I have some dies/taps of that size, let me know for sure & I'll borrow 1 to you.... ;D
Title: Re: Primer Bushing Thread Size
Post by: ARTINCT on January 24, 2011, 09:45:18 am
Quote from: askimball on January 23, 2011, 12:44:48 am
fc60
I have some dies/taps of that size, let me know for sure & I'll borrow 1 to you.... ;D

Dave: What brand and model lathe do you use?  I will be retiring soon and may want to get
a lathe. 
Title: Re: Primer Bushing Thread Size
Post by: fc60 on January 24, 2011, 11:46:43 am
Greetings,

I have a South Bend 13" lathe with the quick change gearbox.

You may wish to consider the smaller South Bend Heavy 10 with the wide range gearbox. I believe it cuts 27 pitch threads without a supplemental gear. It have the larger 1 3/8" through the spindle bore for barrel work.

Cheers,

Dave