Expanding nail with head and pin of variable size with burrs on pin

摘要

Nail consists of a pin with pointed end and a head, which may e.g. be hemispherical, recessed, flat etc., the pin surface having burrs with a barb and spring effect, facing the head end of the nail. The nail is mfd. in accordance with applicable DIN standards. Material from which the nail is mfd. is e.g. metal, rigid PVC or a combination of these.