Knob (screw) that fits our Fiskern knife blade, item no. BO24000. The screw ensures a secure attachment of the blade to the handle, as the blade runs through the handle. The knob (screw) has a height of 2.4 cm. It is compatible with a cork handle blank with two leather pieces, item no. BO90010. In addition, wooden pieces must be made for the front and rear of the cork to complete the handle.