The DoP is referring to the F+S PRO Chipboard screws countersunk head steel with the following nominal diameter: 3,0 and to the F+S PRO wood construction screws countersunk head steel with the following nominal diameter: 3,5, 4,0, 4,5, 5,0 , 6,0, 8,0, 10,0, 12,0. For details, please refer to the DoP on our homepage.
