Coiled spring pin
series 600 superflex
SPIROL's Coiled Spring Pin, Series 600 Superlex Pins have a loosely wrapped outer coil and a diameter at 90º to the seam equal to the hole size and have low insertion force and enhanced flexibility after insertion. The Superflex Pin eliminates insertion problems associated with hardened holes with sharp edges. The pin is not distorted during insertion and maintains its straightness. One example of a great application for the Superflex Pin is when the pin is inserted into a shaft with both ends exposed for engagement into a slotted clutch component.