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Ask DocSk8 (Expert Indoor Skate Building Advice) This forum is different then the other SkateLog forums in that it is not a discussion forum, but rather a place you can ask skate building expert Fred "DocSk8" Benjamin about building and repairing indoor speed, derby, and jamskate quad roller skates. Please start a new thread for each new question.

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Old February 17th, 2010, 10:57 PM   #1
Doc Sk8
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Exclamation What threads do my sk8s have??

Note: This list is not ALL inclusive...yet. I will up date it as I find others or am reminded by you folks...

King pin into plate on US sk8s


3/8" X 16 UNC.
Snyders: Most hanger style and late model Advantages, Lasers, Novas, Satellites, American Whips, Cleveland, Rannalli Rockets.

3/8" X 20 BSF.
Sure Grip, real Chicagos, Ultimates.

3/8" X 24 UNF. Old Snyder dance and figure plates.


1/2" x 20 UNF. Power Tracs, Pro Lines, Snyder Advantage early style, Power Dyne Reactor and Revenge

King pin into plate on Roll Line sk8s.

12mm x 1.25 Old style

13mm x 1 New Style (plates marked 04)

Boen King pin.

12 x 1.25mm
Big end

10 x 1.25mm
Small end.


Reverse king pin adjuster nuts.

3/8" X 24 UNF.
Sure Grip and Snyder reverse king pins. Powerdyne Revenge. They can also be 10 x 1mm. DO not mix up the nuts.

3/8" X 16 UNC. Sunlice, cheap modern Chicagos

10mm x 1.25 Boen
10mm x 1 Powerdyne Revenge may be either 10mm x 1 or 3/8 x 24. Reactor (new style black king pins)

Axle threads.

True 7mm Roll Line, ATLAS, Boaini, Paioli, Italian WIPs 7mm x 1.00

US "7mm"
(the are not really 7mm, they are 9/32") 9/32 x 32tpi. This is a "special" thread.


US "8mm" (the are not really 8mm, they are 5/16") 5/16 x 24 UNF


True 8mm Chaya threaded axles

New Chicago "8mm" 5/16 x 18 UNC


Toe Stop (and related) threads.


Large US stop shaft: 5/8 x 18tpi

Sx
toe stop: 5/16 x 18tpi
Toe stop set screw: 1/4 X 28tpi x 3/4" Sure Grip, Labeda, Snyder

"Crutch tip / bell shaped" toe stop screw: 1/4 x 20tpi
Reactor set screw : 6x1mm. Threads under the head are about 16mm long.
Laser
toe stop lock screw: 1/4 x 20tpi
Roll Line Stop shaft: 16 mm x 1.5
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Last edited by Doc Sk8; January 4th, 2017 at 01:32 PM. Reason: Further up date...
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Old March 5th, 2010, 05:49 PM   #2
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Dont know if you received an answer on this or not....

but here is a link

British Standard Fine.....
http://www.diracdelta.co.uk/science/...ne/source.html
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Old March 5th, 2010, 08:39 PM   #3
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Smile Thanks..

I knew what it was, I am just listing all the different threads I have run across... very detailed explanation...
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Old February 1st, 2011, 12:59 PM   #4
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Quote:
Originally Posted by Doc Sk8 View Post
King pin into plate on US sk8s

3/8" X 16 UNC. Most Snyders, Lasers, Novas , Satellites, American Whips, Cleveland.


3/8" X 20 BSF.
Sure Grip, real Chicagos, Ultimates.

3/8" X 24 UNF. Old Snyder dance and figure plates.
[FONT=Arial][SIZE=3]
Question: is the thread pitch going into the plate going to be the same as the pitch needed for the adjustment lock nut? I'd like to keep some spares around for my Invader DA45s and need to replace the ones on my husband's crappy Labaedas.
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Old February 1st, 2011, 04:29 PM   #5
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Quote:
Originally Posted by daisydowrong View Post
Question: is the thread pitch going into the plate going to be the same as the pitch needed for the adjustment lock nut? I'd like to keep some spares around for my Invader DA45s and need to replace the ones on my husband's crappy Labaedas.
The crappy Labedas and the DA45 both use 3/8 x24 UNF nuts.
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Old February 1st, 2011, 05:46 PM   #6
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THANKS! I'll get him some new nuts tonight, the old ones are just about stripped off. In retrospect that sentence doesn't sound quite right...

As for the Ls he's skating, they're of the under-100 variety and are not long for this world.
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Old February 1st, 2011, 10:01 PM   #7
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Quote:
Originally Posted by daisydowrong View Post
THANKS! I'll get him some new nuts tonight, the old ones are just about stripped off. In retrospect that sentence doesn't sound quite right...

As for the Ls he's skating, they're of the under-100 variety and are not long for this world.
When you said crappy, I did not think you meant a Pro Line..
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Old February 1st, 2011, 10:50 PM   #8
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3/8" X 20 BSF. Sure Grip, real Chicagos, Ultimates.

Hey Doc is there a stash of the Aluminum Jam nuts anywhere, or even where would be a good place to get steel ones?
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Old April 18th, 2013, 01:52 AM   #9
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Default Rannalli Rocket

What was/is the KP size and thread on those?
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Old April 18th, 2013, 03:51 AM   #10
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Thumbs up Rannalli Rockets.

3/8 x 16 UNC. Added to the list. All my Rockets (I have 2 NTS Rockets I sk8.) have Snyder reverse king pins..
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Old April 19th, 2013, 12:36 AM   #11
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Quote:
Originally Posted by Doc Sk8 View Post
3/8 x 16 UNC. Added to the list. All my Rockets (I have 2 NTS Rockets I sk8.) have Snyder reverse king pins..
Thats what I was hoping to read. Thanks.
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Old September 19th, 2013, 12:10 AM   #12
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Default Hard Candy

I love this thread. every time I get some hair brained scheme going, I know I just need to pop onto this thread and my questions are quickly answered. However, I found a container of studs from days gone by that I want to use and they have the same thread pitch as a Hard Candy king pin.

Do you know what these studs would be?

Thanks
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Old September 19th, 2013, 05:00 AM   #13
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Quote:
Originally Posted by rhetttro View Post
I love this thread. every time I get some hair brained scheme going, I know I just need to pop onto this thread and my questions are quickly answered. However, I found a container of studs from days gone by that I want to use and they have the same thread pitch as a Hard Candy king pin.

Do you know what these studs would be?

Thanks
If they are the same thread as the HC it is a 3/8 x 24, same as the Probe and the new Royal on the nut end.. However, the only plate I am aware of that has a 3/8 x 24 in the plate end was some of the old Snyder Dance plates. That presents a problem since I believe those used a Snyder style, Allen head, bolt king pin with a 3/8 x 24 on the plate end...

Looks like ya got me stumped at the moment.. Sorry.
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