... 3, reasonable price 4, strong production line Tungsten Carbide pinswe are the biggest manufacture for carbide nail a good wear resistance and good RS ... value. We produce different sizes and different shapes of tungsten carbide pins, studs, nails for the tire stud, spike, shoes, horses, buses, trucks, etc ... : Φ2.3*5.2 Φ2.4/Φ2.08*5.8 Tungsten Carbide pins for tiers, spike, shoes, horses, buses, trucks