Centerlock nut Shimano MT12 is a fastening nut for disc brake.
It allows fixation (mounting/dismounting) of the disc (in Centerlock format) on the wheel hub.

 

Detailed specifications of the Centerlock nut Shimano MT12

• Color : Black
• Material: Steel
• Internal diameter: 27 mm
• Outer diameter: 44 mm
• Weight: 16 g