Product Description Also known as a hairpin cotter or R-clip, Crown Bolt's hitch pin is used to secure the ends of round shafts most commonly on tractors or heavy equipment. Insertion into a hole depends on the straight leg entering the hole and the curved leg pressing down upon outer diameter of the shaft. Compared to cotter pins, hitch pins are easier to remove and are reusable. From the Manufacturer Also known as a hairpin cotter or R-clip, Crown Bolt's hitch pin is used to secure the ends of round shafts most commonly on tractors or heavy equipment. Insertion into a hole depends on the straight leg entering the hole and the curved leg pressing down upon outer diameter of the shaft. Compared to cotter pins, hitch pins are easier to remove and are reusable. Hitch pin clips also known as hairpin cotters or R-clips Commonly used to secure the ends of round shafts on heavy equipment Parts are zinc-plated for a higher corrosion resistance These steel hitch pin clips measure 1/8 in loop diameter and 2-9/16 in length UPC 008236001747 ASIN B00HYK4JHO Brand Hillman Color Zinc Model 642 Pin Type Hitch Set Name 20-Pack Size Name 1/8 x 2-9/16 Unit Count 20.0 Count Part Number 642 Finish Types glossy Manufacturer The Hillman Group Fastener Type Hitch Pin Clip Item Diameter 0.13 Inches Material Type Alloy Steel, zinc plated Item Dimensions 3.8 x 1.8 x 1.6 inches Number Of Items 20 Number of Pieces 20 Outside Diameter 0.13 Inches Screw Head Style R-Shape Compatible Groove Diameter 0.14 Inches Global Trade Identification Number 00008236001747