One standard shown here has a pitch of 5 threads per inch.
Standard broom handle thread size.
There are several variations in use.
Size of thread on broom handles.
Apparently there are two standards common in the usa both based on a 3 4 dowel 0 75 inch or 19mm.
Besides painting i ve seen the same or similar standards used for brooms lightbulb grips pool tools and gutter cleaning poles.
The two types of handles are not interchangeable.
However that doesn t seem to be the case.
American broom and brush manufacturers make acme threaded handles and brushes.
Our standard threaded handles are made of lacquered hardwood for consistent dependability and fits most brooms and brushes that utilize an acme type thread.
But it is not the right pitch for standard broom handles.
Every paint and broom stick i own will not work with the acme thread type i ve tried 2 3 and 4g but no luck.
I have two different thread sizes both appearing to have something close to acme thread profiles but not standard tpi.
This is a nice tap well made and cuts nice threads.
Does anyone out there have specs for threads on standard broom handles.
For example you cannot use a handle with acme threads on a floor brush that has european threads.
I thought that most us paint stick threads were acme 4 or 5 theads per inch.
One size does not fit.
I am looking for information on the threads for a screw in wood handle pitch thread depth etc.
European brush manufacturers make handles with european threads.
I was able to find a thread gauge and found that a standard broom handle thread is 3 4 5.
Most popular is about 3 4 outer thread dia x 5 tpi.
If you check various brooms you will find several variations on the thread style.
Acme standard and european thread types.
I tried several broom handles and handle extensions they don t thread in ore than one turn.
For brooms paint rollers extension poles.
I m trying to 3d print a widget and need to create a hole with a thread type for a standard paint stick.
Another flavor is about 1 080 outer thread dia x 4 tpi.