The Maverick Lugnuts do not fit the bronco sport wheels they bottom out. So your wheel is not on fully secure. But the steel wheels Lugnuts might work like the one poster up above showed. You can see in my second picture where the Maverick lug nut from the alloy wheels bottoms out on the bronco sport alloy wheels and wore a definite ring where it bottomed. The third and fourth photo show the Broncos sport lug nut clearing through the hole and the maverick lug nut bottoming out. Your are exactly correct. The Bronco Sport wheels are not identical to the Maverick wheels in that the lug holes on the Sport wheels are 16mm while the lug holes are 18mm on the Maverick wheels. This is because the Sport wheels are designed to fit on hubs with 12mm lugs and the Maverick wheels are designed to fit on hubs with 14mm lugs. To properly mount Bronco Sport wheels on a Maverick, the lug holes have to be enlarged to 18mm to allow the proper seating of the 14mm lug nuts.