5/16" x 0.650" Deep (Small Body - Extra Long).
Used on lightweight items like Air Boxes, Bonnet scoops and small panels. Once self eject is installed it stays on the car so you never have to go looking for where you put those buttons. Available in Steel and Alloy these are super handy and basic to use. This fastener is extra long.
Made in the U.S.A.
As used on the MSCN Sprint Car - Pic shows 7/16" diameter.