The Expansion Tip for Ø 19 Wedge Coupling, Zinc Plated, Steel, is a piece that functions as a pin and is used in conjunction with the Ø 19 Wedge Coupling Brackets and the Ø 19 Wedge Coupling of the union system for shelves. In its dimensions, we can see that the extension tip has a diameter of 3 mm and a maximum length of 25 mm, made entirely of steel to be able to withstand the traction forces to which the piece is subjected. Also, this product has a final zinc plating finish that protects it from the effect of corrosion. Its packaging contains 10,000 units.