The bolts are called wheel studs—the threaded posts the lug nuts thread onto. Some vehicles use wheel bolts instead of studs, in which case the lug nuts don’t go onto bolts.
In practice, knowing which system your car uses helps with wheel changes, replacing damaged fasteners, and purchasing the right parts. The following sections explain the two main systems and how to identify which one applies to your vehicle, plus practical notes for maintenance and compatibility.
Wheel studs: the posts your lug nuts grip
In the common setup, a hub assembly includes studs that protrude outward from the wheel hub or rotor. The lug nuts then thread onto these studs to clamp the wheel to the hub. Here are quick facts:
- There are typically 4 or 5 studs per wheel, depending on the vehicle's bolt pattern and wheel design.
- The studs are usually pressed into the hub and can be replaced if damaged, though often by replacing the hub assembly or entire wheel hub unit.
- Thread size and pitch vary by vehicle (for example, metric sizes like M12x1.5, M12x1.25, M14x1.5, or imperial sizes like 1/2-20, 9/16-18).
- Wheel studs work with standard lug nuts (which are sized to match the stud diameter and seat type).
- Torque specs are torque-sensitive; using incorrect torque can cause wheel lug nuts to loosen or damage the studs.
Understanding wheel studs helps with proper wheel installation and safe maintenance, including when replacing worn studs or the hub itself.
Wheel bolts: some cars secure wheels without studs
On many European and some Asian vehicles, the wheel is secured by lug bolts that thread directly into holes in the hub. In this system, the lug nuts do not ride on bolts; rather, the bolts themselves fasten the wheel to the hub. Key points include:
- The wheel has corresponding holes through which the bolts pass and thread into the hub.
- Common bolt configurations vary, with 4, 5, or more bolts per wheel.
- Bolt sizes include metric threads (for example M10, M12 with various pitches) and require proper torque as specified by the manufacturer.
- Compatibility depends on hub design and wheel pattern; not all wheels interchange between studs and bolts.
In bolt-on systems, you’ll be working with lug bolts rather than lug nuts for wheel attachment, which changes some maintenance steps and part compatibility.
How to identify which system your vehicle uses
Check the hub area and owner’s manual to determine whether your car uses wheel studs or lug bolts. Here are practical steps to confirm:
- Inspect the hub: If you see threaded posts sticking out from the hub with lug nuts threading onto them, you have wheel studs. If you see holes in the hub where bolts would thread in, you have wheel bolts.
- Look at the wheel: If the wheel has holes that line up with studs, it’s designed for lug nuts on studs; if the holes align with bolts that go into the hub, it’s a bolt system.
- Consult the manufacturer or a mechanic: If you’re unsure, refer to the vehicle’s manual or contact a dealership or shop.
Correctly identifying the system helps ensure you purchase the right fasteners and use the proper torque during installation.
Summary
Most cars use wheel studs, with lug nuts threading onto the studs to secure the wheel. Some vehicles use wheel bolts, which secure the wheel by bolts that thread into the hub directly, and do not use lug nuts on studs. Always verify your vehicle’s specific pattern and hardware before purchasing parts or performing maintenance.
Can lug bolts be replaced?
In. Next you can use a lug nut installer. Like this one unfortunately this one doesn't fit so instead of the lug nut installer. I'm going to be using a nut. And two washers.
What is the thing called that you put your lug nuts on?
Wheel studs are the threaded fasteners that hold on the wheels of many automobiles. They are semi-permanently mounted directly to the vehicle hub, usually through the brake drum or brake disk. Lug nuts are fastened onto the wheel stud to secure the wheel.
What are the bolts called that lug nuts go on?
Wheel studs
Wheel studs, sometimes called lug studs, are a lot like bolts. The shank, or shaft, of the stud is externally threaded. Lug nuts are internally threaded. Together these components fasten the wheel to its wheel hub.
What size lug nut for Nissan Rogue?
Nissan Wheel Lug Nuts M12x1. 25 | Altima, Sentra, Kicks, Rogue | OEM Replacement Lug Nuts.