Fig. 10From: Relationship between clamp force and pull-out strength in lag screw timber jointsRelationship between F L/P 5%-pull and diameter–thickness ratio of round washer. a Cryptomeria japonica, b Chamaecyparis obtusa, c Pseudotsuga menziesii, F L: maximum clamp force per unit screw length, and P 5%-pull: 5% lower limit value of pull-out strength per unit screw lengthBack to article page