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Adapters & couplers
Broom handle thread adapter for a mismatched head
A short adapter that lets a threaded broom or mop head screw onto a handle with a different thread, saving a perfectly good pole when the head is replaced. One end carries the common coarse ACME-style external thread of about 22 mm diameter and 4 mm pitch, the other a smooth 24 mm socket for a push-fit handle with a cross-hole for a screw. A 30 mm flange in the middle stops over-tightening and gives fingers something to grip. Print it standing up for strong threads. Open the ready-made model free, resize it on your phone or computer, then download a print-ready STL, 3MF or G-code sliced for your printer, free.Opening the ready-made model and downloading it as STL or 3MF are free, no card; AI changes use credits, from Maker at $7.99 a month.No printer? We print this part and ship it to your door. See its priceUpdated
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Adjust
Change its numbers in the viewer for free, or ask the AI in the chat: wall thickness, hole size, the thing it clips onto. AI changes use 2 credits per request (1 for a quick edit, 3 for a redesign), paid with a plan from Maker at $7.99 a month.3Print
Download a watertight STL or 3MF free, with your numbers and hand edits, or G-code sliced for your printer at the same price. After an AI change the download is included in every plan (4 credits without one).
Dimensions of the ready-made model (editable)
| Parameter | Value |
|---|---|
| external thread major diameter | 22 mm |
| clearance for thread fit | 0.2 mm |
| thread pitch | 4 mm |
| thread length | 30 mm |
| flange diameter | 30 mm |
| flange thickness | 6 mm |
| smooth socket inner diameter | 24.3 mm |
| socket depth | 45 mm |
| wall thickness around socket | 4 mm |
| cross screw hole diameter | 4 mm |
Example prompt
Design a broom handle adapter. External coarse thread 22 mm major diameter, 4 mm pitch, 30 mm long with 0.2 mm clearance. Opposite end a 24.3 mm smooth socket 45 mm deep with a 4 mm cross hole for a screw. Central flange 30 mm diameter and 6 mm thick.
Fit notes
Handle threads vary between brands and countries, and SpeakCAD models the pitch and diameter you measure with calipers rather than assuming a standard. Preview in your browser, then ask for a tighter thread, a longer socket or a 90-degree angled version.
Questions people ask about a broom handle thread adapter for a mismatched head
A short adapter that lets a threaded broom or mop head screw onto a handle with a different thread, saving a perfectly good pole when the head is replaced. One end carries the common coarse ACME-style external thread of about 22 mm diameter and 4 mm pitch, the other a smooth 24 mm socket for a push-fit handle with a cross-hole for a screw. A 30 mm flange in the middle stops over-tightening and gives fingers something to grip. Print it standing up for strong threads.
Click Open it free on this page and create a free account (no card): the ready-made model opens in your browser, on your phone or computer, nothing to install. Change its numbers in the viewer for free and download a watertight STL or 3MF free, or G-code sliced for your printer at the same price. An AI change in the chat uses 2 credits per request (3 for a redesign), and the download after it is included in every plan (4 credits without one). Start with Maker: 50 credits a month for $7.99, cancel anytime.
On this page: open the ready-made model free in a SpeakCAD account (no card), change any dimension in the viewer, then download the STL or 3MF free, or G-code sliced for your printer at the same price.
A shared STL is modelled for someone else's measurements. Here you open the ready-made model free, change it to your measurements in the viewer, then download a file sized for the part you actually own, free as STL or 3MF.
Yes. SpeakCAD slices the part on its servers with OrcaSlicer and your printer's official profile (380+ printers, including Bambu Lab, Prusa, Creality and Elegoo), and you download the G-code (a sliced .gcode.3mf for Bambu Lab printers). G-code sliced for your printer costs the same as the STL: included in every plan, free for a part you shaped by hand, 4 credits without a plan for a part with AI work in it. Pick your printer on the printers page to see its profile.
No. SpeakCAD runs in the browser on your phone or computer: the chat, the 3D engine and the live viewer load in the tab. The only file you download is the finished STL, 3MF or sliced G-code.
Print it your way
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