Koch Industries 4022123 Wire Hair Pin Clip, 5/64 x 1-3/32-Inch, Yellow Zinc Plated, 10-Piece Fastener used to prevent a wheel or other rotating part from sliding off the axle upon which it is riding Fits shaft diameter 1/8 - 1/4-inches Commonly used with clevis pins and shafts Pins comes in poly bag Yellow zinc plated