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

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