Also referred to as roll, tension and expansion pins. Hollow and slotted lengthwise to create tension, these self retaining spring pin are made of stainless steel. Stronger and more corrosion resistant. They are installed by two easy operations, just drill and drive. Features - Color: Silver. - Material: Stainless steel. - Size: 5.00 x 0.60 x 0.60cm/ 1.97 x 0.24 x 0.24 inch. - Superior to and used in place of drive pin, taper pin, collar pin, etc. - Permit a wider tolerance because of the flexibility. Tapered ends make starting easy. - Axial slotted, two ends have chamfer, for the positioning, connecting and fixing between the parts. - Slotted spring pin widely used for automotive, mechanics, car garage, workshop, power equipment. - They are made of stainless steel, which offers good corrosion resistance.