Moroso 71507 - Quick Fastener, Self Ejecting, 5/16 In X .550, Aluminum, Black

Self Ejecting Fasteners 0.550 in. Medium Body Grip Range 0.250-0.325 in. 10 Per Pack • These spring loaded buttons guarantee a quick release • The spring holds the button captive so that it can’t be dropped underneath the car or into some hard-to-get-at area of the chassis • A necessity for quick pit work in both drag racing and oval track • Use Spring No. 71430 as a replacement • Ten per package