Ensure a perfect and secure blockage of your roller trains with theM8 cylindrical nut of outer diameter 13 mm. This specific technical hardware piece is essential for mounting the clamping flanges of your rear wheel hubs, your crown carriers or your disk holders on the axis of your karting.

As illustrates the reference picture 6195.jpgThis nut is distinguished by its perfectly smooth tubular shape outside. Its 13 mm calibrated diameter allows it to fit ideally in the cylindrical masks and cylinders of your aluminum or magnesium parts, thus avoiding using a standard hex nut that would require a bulky socket. Thanks to his Internal hexagonal imprint (six hollow sides), the tightening is done directly from the inside using an Allen key (BTR). This design eliminates any disgraceful or dangerous screw overrun, while optimizing the distribution of the pressure force around the back tree.