Bike Crank Arm Bolt, M15 Bottom Bracket Bolt M15*19mm Splined Bolts BB Axis Screws for Mountain Road (Black)

[Excellent Performance]: This M15*19 spline bottom bracket is equipped with a washer, which has excellent performance and provides an excellent user experience, which is very suitable for mountain bikes. [Aluminum Alloy Material]: Our bicycle spline central axle are made of qualified aluminum alloy materials, which have high hardness, wear resistance, corrosion resistance, and good rust resistance. [Exquisite Workmanship]: The bicycle spline central axis is finely crafted, colorful, small in size, light in weight, light and portable, easy to carry around, and can be purchased and used with peace of mind. [Not Easy to Fade]: The spline central shaft is smooth on the outside, waterproof and dustproof, and will not fade easily. In addition, pay attention to use a 10mm Allen key with a force of 30-50N.M. [Service Guarantee]: If you have any questions about our bicycle spline bottom bracket bolts, you can contact us by email at any time, we will reply and solve your problems in time, and strive to provide better service.