Resists loosening by vibration , Self retaining fastener Hillman #10- 32 x 2-1/2-in Slotted-Drive Machine Screws (15-Count) at Tension Pins The Hillman Group 44283 7/32 X 2-Inch Tension Pin, 10-Pack 7/32 X 2 Inch Roll Pins Each pin measures 7/32 inches in diameter and 2 inches long. You get 10 pins in a pack, which is handy for various projects. Whether you're into DIY, repairing... Slot on the side makes it easier to insert the pin into a hole and compress 7/32 Inch Diameter Tension Pins Hillman Group Tension Pins - 7/32 X 2-Inch Spring Pins 10-Pack For Machinery Mechanical Pins · View More Details The spring action of the pin allows it to compress as it assumes the diameter of the hole.