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Joined: Jul 2014
Posts: 110
Likes: 8
Apprentice level 2
Need to know what type of thread is on the 5 screws holding the plastic carb to the tank, same thread as on the long screw which holds the air filter to the carb. See pic - part # 534

Approx 3/16 inch it seems.

I have various very similar screws in my boxes and jars of old nuts, bolts and screws but mostly British, Euro and Japanese - some are very close but not exact. Presumes it is a standard USA type of thread. Been through every website about B and S parts, none say what the actual thread type is.

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Joined: Sep 2015
Posts: 1,996
Likes: 137
SENIOR TECHNICIAN & HISTORIAN
Hi MM,

I think they are an oddball size meaning you'll have to buy the screws from the manufacturer or supplier and not a standard bolt shop.

Nothing matches the thread pitch on these carby screws on my metric and imperial thread gauge.Looks about 0.8 mm pitch

The screw part number is 692200 but I don't use Duck Duck Go if I'm looking for parts as you won't get a complex and advanced algorithm that ensures you get the most accurate results for your search phrase or more relevant results.



Cheers
Max.

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Joined: Jul 2014
Posts: 110
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Apprentice level 2
Thanks Max, certainly is an oddball thread, I couldn't find anything to match although there's a metric screw which has the right TPI but is slightly wider. Been an interesting exercise trawling through the B & S parts lists, I never realised they made so many different motors.

Joined: Jan 2015
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AVB Offline
SENIOR TECHNICIAN
The screws are SAE 10-32.

Joined: Jul 2014
Posts: 110
Likes: 8
Apprentice level 2
Thanks AVB, exactly what I needed.

Glad I asked.

5mm = .19685, 31.5 threads/inch
10-32 = .190, 32 threads /inch

Close, but not right.

Joined: Jan 2015
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AVB Offline
SENIOR TECHNICIAN
That sorta like 1/8 pipe threads. Sae and British are very close but still not right. 1/8 BSPT is smaller Diameter and 28 tpi where SAE 1/8 NPT is slightly larger OD and is 27 tpi.

I would had never know the difference if it was a Kawasaki oil sensor problem.

That is why I went out a pulled the screws here and sized them with the tap and dies. But I wish companies would put the thread size in the parts lists too.

Last edited by AVB; 06/01/24 08:18 AM.
Joined: Sep 2015
Posts: 1,996
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SENIOR TECHNICIAN & HISTORIAN
That makes sense AVB why I could not find what the pitch was as my thread gauge only goes to 30 TPI ,
when I measured the screws I got 3/16 and the pitch I estimated at .8 mm and the pitch is 0.794 so I
was close . smile




Cheers
Max


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