This is an axle nut for many GM vehicles. This is a hex head, flanged style nut. This nut has a flanged bottom that serves as a washer. These are for many different GM vehicles including Buick Enclave, Cadillac CTS, Chevrolet Impala Limited, Silverado 2500HD, Silverado 3500HD, Traverse, GMC Acadia, Sierra 2500HD, and Sierra 3500HD vehicles. You will receive 1 nut per order. (Contact us for a bulk pricing if you want to purchase a lot of these nuts)

M27 X 2 X 18

Thread Diameter: M27

Thread Pitch: 2.00mm

Flange Diameter: 47mm

Head Size: 33mm

Height: 18mm (overall)

GM Part # 10257766

Alternate Part #'s 10277361 ; 25553947

Item is number 11 in the GM diagram.