The 999-31 Large Coiled Tension Safety Pin used for spindle axles, heims and other places to add extra safety precautions to secure mounting hardware. 

These pins are more efficient than a standard cotter pin and safer than a hairpin cotter pin when making quick changes to your spindle height and wheel hub spacing. 

Useable Length: .75” (19.5mm)

Overall Length: 1.575” (40mm)

Wire Diameter .0625” (1.6mm)

Sold individually