Replacement M4 x 12 Flat Head Screw fastener for derailleur hangers.

• Head Type: Socket Head Cap
• Drive Type: Hex Socket
• Thread Size: M4x0.7mm
• Overall Length: 12mm
• Material: Steel
• Hex Key Size: 2.5mm
• Bag of 5
• View more detail on WheelsMFG.com

Check our Hanger Fastener Chart to make sure to get the correct number of fasteners for your hanger!