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Topic: Pull Rod ??? |
Lyle Bradford
From:
Gilbert WV USA (deceased)
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Posted 4 Dec 2003 8:12 pm |
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| What size die do i need to put threads on a 7/64th pull rod? Also what type do i need to buy? |
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Donny Hinson
From:
Glen Burnie, Md. U.S.A.
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Posted 4 Dec 2003 8:44 pm
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| A standard 4-40 button die. |
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Lyle Bradford
From:
Gilbert WV USA (deceased)
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Posted 4 Dec 2003 8:59 pm
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| Thanks Donny! |
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Lyle Bradford
From:
Gilbert WV USA (deceased)
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Posted 5 Dec 2003 6:42 pm
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| A 4-40 seems to be to small for the 7/64 rod. |
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Donny Hinson
From:
Glen Burnie, Md. U.S.A.
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Posted 5 Dec 2003 7:26 pm
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Then either the end of the rod is messed up, or you don't really have 7/64" rod. Standard 7/64" rod (a fairly uncommon size, by the way) should measure .109" if you check it with a micrometer or a caliper. A small chamfer ground or filed on the end of the rod should allow you to start the die. To double check the die, try starting it on a 4-40 screw.
If the die still won't work, you may be dealing with 1/8" rod, instead.
(Standard Mil-Spec 4-40 screws measure about .108" on the major diameter.) |
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Lyle Bradford
From:
Gilbert WV USA (deceased)
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Posted 5 Dec 2003 7:35 pm
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| I got them from Emmons and they are listed at 7/64. That is really all I have to go on. Donny also the 4/40 die will not screw up on the rods on my Legrande 2 that are all ready threaded. Maybe they are bigger. [This message was edited by Lyle Bradford on 05 December 2003 at 07:37 PM.] |
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Russ Wever
From:
Kansas City
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Posted 6 Dec 2003 12:56 am
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Lyle,
The discrepancy may be that the rods you got from Emmons are rolled threads as opposed to cut threads (die cut).
~Russ |
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Bob Knight
From:
Bowling Green KY
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Posted 6 Dec 2003 6:18 am
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Lyle,
You need a 6-32 die. |
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Jim Smith
From:
Midlothian, TX, USA
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Posted 6 Dec 2003 7:25 am
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| Dekley's (and others') 1/8" rods were machine threaded at 5-40, but I always had trouble hand threading them, so used 6-32 instead. Hand threading your 7-64" rods with 5-40 might work. |
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C Dixon
From:
Duluth, GA USA
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Posted 6 Dec 2003 8:11 am
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The late Ron Lashley Sr told me the following:
"We went to 7/64" rods so we could use the more standard 4-40 thread instead of having to use a 5-40 thread as one needs on a 1/8" rod."
carl
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Lyle Bradford
From:
Gilbert WV USA (deceased)
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Posted 6 Dec 2003 9:20 am
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| Carl it may just be me I have never done this before. I will try again with it. |
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Bill Moore
From:
Manchester, Michigan
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Posted 6 Dec 2003 2:06 pm
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| GetA 4-40 "adjustable" die. It has a screw which can be loosened to allow the threads to be a little oversize. McMaster-Carr sells them. |
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Bill Ford
From:
Graniteville SC Aiken
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Posted 6 Dec 2003 4:33 pm
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Has anyone priced a good 4-40 die lately?Last one I priced,I decided it was cheaper to take it to a machine shop,luckly I found a friend that had one.
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Bill Ford |
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