Replacement M4 x 8 Flat Head Screw fastener for derailleur hangers.

• Thread: M4-0.7
• Overall Length: 8mm
• Material: Steel
• Use with 2.5mm hex wrench
• 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!