A front jaw of a ski binding having a housing arranged on a base plate adapted to be mounted fixedly on a ski, at least one sole holder, which is held in a no load position thereof by means of a spring-loaded tension applying device subject to the action of a spring. The spring force acting on the tension applying device is adjustable by rotation of the head of a screw. One end of the spring bears against the housing and the other end thereof bears against a screw head of the tension applying device. The screw head of the tension applying device is designed in the form of a coupling screw. A cap engageable with the screw head is arranged in the removable housing part such that it may be turned from outside the removable housing part. The invention also relates to a method for assembling the above-mentioned front jaw.