BMW Brake Rotor Set Screws 4pcs – Disc Brake Rotor Screws for BMW E36 E46 E82 E88, 34211161806
BMW Brake Rotor Set Screws – Pack of 4, Reference 34211161806
These BMW brake rotor set screws are the small locating screws that hold a brake disc against the wheel hub. The pack contains four screws and is sold under the reference numbers 34211161806 and 34111157343. The supplier lists them for a range of BMW models, including the E36, E46, E82 and E88 named in the listing title. Easy Life Markets sells them as a simple, low-cost item to have on hand before you start a brake job.
On most BMWs each brake disc is held to the hub by a single small screw. It does not carry any braking load. The wheel bolts do that once the wheel is fitted. The screw's job is to keep the disc flat and correctly positioned on the hub while the wheel is off, and to stop it shifting when the wheel goes back on. The trouble is that these screws live in heat, water and road salt. They seize, the hex rounds out, and they often have to be drilled out. Fresh screws make reassembly easy. For background on the parts they hold together, see the disc brake article.
What Is Included
- 4 x disc brake rotor set screws
That is one screw per wheel for a car with disc brakes all round. Only the screws are supplied. Brake discs, pads and tools are not included.
Specifications
- Product type: Disc brake rotor set screw
- Quantity: 4 pieces
- Reference numbers: 34211161806, 34111157343 (also written 34 21 1 161 806 and 34 11 1 157 343)
- Manufacturer part number: BACB12-002006
- Position: Front and rear
- Drive: Internal hex (Allen), as shown in the product photo
- Head marking: 10.9, as shown in the product photo
- Finish: Black, as shown in the product photo
- Brand: Unbranded
- Country of manufacture: China
- SKU: CJQT272702001AZ
The supplier does not publish the thread size, length or hex key size, so they are not listed here. If you need one of those figures, contact us before ordering.
Compatibility
The supplier's compatibility table lists:
- BMW X5, 2000–2016
- BMW Z4, 2003–2016
- BMW 328i, 1999–2000 and 2007–2015
The listing title also names the E36, E46, E82 and E88 chassis. The supplier notes that its compatibility list may not be fully accurate, so the part number is the better guide.
How to Make Sure They Are Right for Your Car
- Look up the number. Enter your VIN in a BMW parts catalogue and find the brake disc fixing screw. If it shows 34211161806 or 34111157343, these are listed as the equivalent.
- Compare with an old screw. If you have one out already, check the head shape, thread diameter and length against the photos.
- Check both axles. Some cars use different screws at the front and rear. The supplier lists these for both positions, but your catalogue will confirm it.
- Ask us. Send your VIN and we will help you check.
When to Replace Rotor Set Screws
- You are fitting new brake discs and the old screws are rusty
- The hex socket is rounded or packed with corrosion
- A screw had to be drilled or hammered out
- A screw is missing, which is common on used cars
- The threads are damaged or the head has chewed edges
Since the screws cost very little compared with the labour of removing a seized one next time, most mechanics simply fit new ones with every set of discs.
Installation Tips
- Before trying to undo an old screw, clean out the hex socket with a pick and tap the correct hex bit fully home with a hammer. A bit that is only half seated will round the socket.
- A sharp tap on the bit, or a hand impact driver, often breaks a stuck screw free.
- Clean the hub face and the threaded hole before fitting the new disc.
- Put a small amount of anti-seize compound on the threads of the new screw. It makes the next brake job much easier.
- Tighten the screw to the figure in the BMW service information. It is a low torque. The screw only locates the disc, so there is no benefit in doing it up hard.
- Refit the wheel and torque the wheel bolts correctly.
The supplier reminds buyers to wear protective gear when handling or fitting auto parts. If the screws are being fitted as part of a full brake job and you are not experienced with brakes, have a qualified mechanic do the work.
What the Supplier Says
The supplier describes the screws as made from materials that resist corrosion and wear, and says they hold the rotor securely to help prevent vibration and looseness. It also describes them as simple to install. The 10.9 marking on the head in the photo is a standard strength class marking for metric fasteners.
A Small Part Worth Having in the Toolbox
If you service BMWs regularly, keep a spare pack. Nothing holds up a Saturday brake job like finding a snapped set screw when every parts counter is closed. With four in the pack you have enough for a full set of discs, or spares for two axle jobs.
Who These Screws Are For
They are for BMW owners doing their own brakes, independent BMW specialists and general garages. They are also useful for anyone restoring an older 3 Series where the original screws are long gone.
Common Questions
Are these genuine BMW screws? No. They are unbranded aftermarket screws sold under the BMW reference numbers for identification.
Do I really need the screw if the wheel bolts clamp the disc? The wheel bolts do the clamping, but the screw keeps the disc located on the hub while the wheel is off and during refitting. BMW fits one for that reason.
How many do I need? Most BMWs use one per disc, so four normally covers a whole car. Check your own hubs to be sure.
Buy the BMW Brake Rotor Set Screws at Easy Life Markets
You can order the pack of four here. The current price and availability are shown on this page. Please read our return and refund policy before buying.
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