These female hand wheels have a star-shaped polyamide (PA) body and an embedded nut with an internal thread. Also known as female threaded star knobs, clamping knobs or hand knobs, they provide a hand-operated grip for tightening and adjusting matching threaded fixings.
The black Ø64 mm handwheel with an M12 female thread is available to buy online. Other sizes in the table are available to order; contact us to confirm price and lead time. Buy one replacement or the quantity required for your project: there is no minimum order.
Use these threaded handwheels for suitable clamping and adjustment points on machinery, workshop equipment, jigs, fixtures and furniture assemblies. The female thread fits onto a compatible male threaded stud or bolt; check the thread size, pitch and available engagement before ordering.
The standard body colour is black. The online Ø64 M12 variant is black. For alternative centre-cap colours such as grey, green, red or blue, contact us to confirm availability, price and lead time.
Match the female thread to the male thread on your fixing, then choose the knob diameter. M5, M6, M8, M10 and M12 identify thread sizes; they are not the outside diameter of the knob. The diameter symbol Ø refers to the width of the handwheel.
For example, Ø50 M8 means a 50 mm handwheel with an M8 internal thread. Check that there is enough room to grip and turn the knob, and compare H and h with the drawing below.
Measure the existing knob across its widest points if replacing one. Confirm the thread size and pitch from the fixing specification or with suitable measuring tools. Do not force a knob onto an incompatible thread.
Diameter, H and h are in millimetres. Use the Black button to open the Ø64 M12 online variant. All other sizes shown are available to order: contact us to confirm price and lead time.
| Type | Handwheel diameter | Colour / order | Female thread | H | h |
|---|---|---|---|---|---|
| Female Star Knob | Ø30 mm | Available to order | M5 | 10 | 10 |
| Female Star Knob | Ø30 mm | Available to order | M6 | 10 | 10 |
| Female Star Knob | Ø30 mm | Available to order | M8 | 10 | 10 |
| Female Star Knob | Ø50 mm | Available to order | M8 | 17 | 15 |
| Female Star Knob | Ø50 mm | Available to order | M10 | 17 | 15 |
| Female Star Knob | Ø64 mm | Available to order | M8 | 21 | 19 |
| Female Star Knob | Ø64 mm | Available to order | M10 | 21 | 19 |
| Female Star Knob | Ø64 mm | Black | M12 | 21 | 19 |
Start the handwheel on a clean, compatible thread by hand and check that it turns freely before tightening. Ensure sufficient thread engagement for the assembly and follow the equipment manufacturer’s tightening requirements. Fit the separate centre cap after any access through the top is no longer required.
If you need help choosing, send us the required thread size, knob diameter and a photograph of the fixing. For versions or centre-cap colours not listed online, contact us before ordering.
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