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Additional Information for the Logitech G29 Driving Force.

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Sizes of internal screw

Hi,

I tried to dismantle steering wheel and during that operation I managed to destroy head of one of those internal screws as shown in the picture. I'd like to buy replacement screw but I am unable to identify thread. It looks steeper than usual ones. So I am looking for exact type of this screw. The original seems to be from not very strong zink one, the metal is super soft. I'd like to replace it with stainless steal one.

I am talking about screws as shown here in the Ifixit guide:

Block Image



This is photo of the screws after I managed to get it finally out after the head got destroyed.

Block Image


Can someone identify the screw pls?

Thanks

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Hi @vojtechhruska

If you don't get an exact answer, here's how to determine the size of the screw.

When zooming in on the image you posted I counted 20 threads but I don't know what the diameter and length of the screw is.

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Length of the screw is 35mm, diameter is 4mm.

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@vojtechhruska

Are you sure that the screw is 4mm diameter and not that you measured the head of the screw?

The diameter is the width of the threads of the screw from side to side.

Start at the tip of the screw and measure back 25mm and count how many threads there are for that distance.

The above information will give you the thread measurement.

Also measure the diameter of the screw head as well as these can vary in size even though the screw diameter is the same.

The screw is a cheesehead type so you need to know if the head of the new screw will also fit in

If the diameter of the screw is 4mm look for an M4 x 35mm x (insert thread count value worked out from above) self tapping screw

Go to a hardware or electronics parts store and check out what M4 screws they have. Maybe take the steering wheel with you to see if it fits. It can be a straight, torq, Philips, tamperproof type etc so it's up to you to choose depending on what type of screwdrivers you have.

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