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Dimensions of Thule 853-5147 Replacement Roof Rack Track Nut


It’s a known fact that Thule is the supplier for OEM crossbars for BMW and MINI. It seems that these OEM crossbars have proprietary T Track widths that are wider than those used on standard Thule bars Aeroblade and Wingbar. Would these washers allow for the attachment of the M6 T Bolt into the T Track of the OEM crossbars? Currently I’m using a run-of-the-mill Stainless Steel washer to allow for the T Bolt to grip to the underside of the T Track but would like for something more substantial.


Expert Reply:

According to Thule, at one time they did the OEM roof racks for BMW/Mini, but that's been several years ago so they can't provide any information on anything more recent than 8 or so years ago.

The good news is that I can simply provide you with the dimensions of the track nut, which will provide you with a good idea whether it'll work with the slots in your crossbars.

The # 853-5147 nut measures 1-1/4 x 3/4 of an inch and is .159 of an inch thick. It's threaded for an M6 bolt.

You can see all the dimensions in the provided photo.

click to enlarge
expert reply by:
Mike L

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