Wheel studs
(12 products)
Wheel studs – press-in and screw-in (conversion)
Wheel studs at AKCESOREX are press-in studs for hubs (also called pressed or knurled studs) in M12x1,5, M12x1,25 and M14x1,5 threads, as well as screw-in studs for converting the fastening from bolts to studs and nuts. You choose them by thread, knurl diameter and length – to replace a damaged stud, for use with wheel spacers, or for wheels that require longer fastening. To go with the studs, we offer Ellis and Bimecc nuts (TÜV certified) and KLUCWERK nuts. We help you choose, and we dispatch orders from Poland by DPD courier within up to 3 working days.
- Press-in and screw-in studs
- M12x1,5 · M12x1,25 · M14x1,5
- Help with choosing
- Free delivery for prepaid orders from 100 EUR
How to choose wheel studs – 4 parameters
It must match the nuts, e.g. M12x1,5 or M14x1,5. With screw-in studs, two threads matter: the hub side (as in the original bolt) and the nut side.
This applies to press-in studs. The knurl (the splined section under the head) must fit tightly in the hole in the hub – measure the knurl diameter of the old stud with a calliper to within 0,1 mm.
The working length from the head to the end of the thread. After fitting bolt-through spacers, the stud must be longer by the thickness of the spacer so that the nut can be threaded on over its full length.
The head of a press-in stud must fit behind the hub and not rub against the brake disc shield. Compare it with the old stud before buying.
Press-in or screw-in studs?
| Type | Application |
|---|---|
| Press-in (pressed, knurled) | Fitted in the hubs of cars factory-equipped with studs and nuts. Used to replace a damaged stud or to fit a longer one, e.g. with wheel spacers. |
| Screw-in (conversion) | Screwed into the hub in place of bolts – you fasten the wheel with nuts. They make fitting wheels easier (the wheel “hangs” on the studs) and are popular in tuning and motorsport. |
Fitting studs – what to remember
- Replace press-in studs after removing the brake disc or the hub. The safest way is to draw the new stud in with a nut and washers or with a press – do not hit the thread directly with a hammer.
- The head of the stud must sit flat against the hub around its whole circumference.
- Screw in screw-in studs over the full length of the hub thread, to the torque specified by the stud manufacturer.
- Tighten the nuts with a torque wrench in a criss-cross pattern, and check the tightness again after 50–100 km.
- Choose nuts for the studs with a seat that matches the wheel (cone, ball or flat washer).
Questions about wheel studs
How do I choose a stud for my hub?
Check the thread, knurl diameter, length and head shape of the old stud. It is safest to measure them with a calliper, or to send us the make, model and year of your car – we will choose the right stud.
Do I need to replace the studs after fitting wheel spacers?
With bolt-through spacers, usually yes – the stud must be longer by the thickness of the spacer so that the nut is threaded on over its full length. The alternative is bolt-on spacers.
What is a conversion from bolts to studs?
It means screwing studs into the hub in place of bolts and fastening the wheel with nuts. It makes fitting wheels easier and reduces wear on the hub threads when wheels are changed often.
Can I replace studs myself?
Screw-in studs – yes, as long as you observe the tightening torque. Press-in studs require removing the brake disc or hub and suitable tools – if you lack experience, have a workshop do the replacement.
See also: wheel nuts · wheel spacers · wheel bolts · locking wheel bolts & nuts
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