V-nails produced by Pilm for joining polystyrene and wooden frames. Made of steel and grouped as strips. A layer of silicone is applied to the strips of the nails to hold them together and also allows for smooth penetration into the joining material. Available in 4 mm, 7 mm, 10 mm, 12 mm and 15 mm height. Suited for all foot-operated and pneumatic frame assembly machines of Pilm.