What thread size is used on the guide?
Guide flag thread size?
Started by
Dave_12
, May 27 2025 04:00 PM
7 replies to this topic
#1
Dave_12
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Posted 27 May 2025 - 04:00 PM
David Rees
#2
MSwiss
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Posted 27 May 2025 - 05:06 PM
The US size is 10/32.
There is also a similar metric size.
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Mike Swiss
Inventor of the Low CG guide flag 4/20/18
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder
17B West Ogden Ave., Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)
Note: Send all USPS packages and mail to: 692 Citadel Drive, Westmont, Illinois 60559
#3
Dave_12
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Posted 27 May 2025 - 07:46 PM
10/32 is 7.94mm so maybe a 8mm nut is close enough .
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David Rees
#4
Bill Seitz
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Posted 27 May 2025 - 08:32 PM
Over the years I've come across both 8 & 9 mm guide nuts, so I'd say yes to 8 mm. Not sure what thread size this is in metric, but the guide shank is 3/16 (.188"), 4.78 mm if I converted correctly.
#5
slotcarone
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Posted 27 May 2025 - 11:29 PM
10/32 is 7.94mm so maybe a 8mm nut is close enough .
If it is metric you would need the thread pitch also besides the 8mm size.
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Mike Katz
Scratchbuilts forever!!
#6
mreibman
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Posted 28 May 2025 - 04:48 AM
For metric guides, like red fox or cahoza, use an m5 nut with .8mm thread size.
You'd think we could all standardize in our hobby. You know, make life simpler.
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Mike Reibman
Alleged amateur racer.
Mostly just play with lots of cars.
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Alleged amateur racer.
Mostly just play with lots of cars.
Able to maintain slot cars with a single bound.
Faster than a speeding Womp.
More powerful than a 36D.
#8
zipper
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Posted 28 May 2025 - 02:03 PM
That M5 it was as my friend Jukka Vatanen (RIP) sent those Norwegian brass nuts to Jan Limpach around 1972 which then were packed and sold by Parma...
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Pekka Sippola
