An M12 x 1.25 banjo bolt is a hollow, threaded fastener used to connect hydraulic hoses or lines to a component, such as a brake caliper or fuel pump. It allows fluid to pass through the banjo bolt and fitting to create a seal in tight spaces. The bolt’s specifications are:Â
M12:Â 12mm thread diameter.
1.25:Â 1.25mm thread pitch (the distance between threads).Â