Mountain Bike Square Hole Crank Arm Bolts Bike M8 Screw Bottom Bracket Screw Hexagon Bottom Nuts

Label:Yes Material: 45 steel Weight: about 15G Package include:2*screws Name: bicycle shaft hex screws Suitable: Square hole tooth pattern axis Specifications: M8 * 15MM

Features:

1. the surface is resistant to falling glue, than non-drop-resistant screws more easily locked.

2. to waterproof, anti-mud, anti-dust into the shaft inside and improve the service life of the shaft.

3. installation and removal of 8MM hex tool.