1/4-20 x 3" Nylon Wing Bolts XL (4)
DuBro 1/4-20 x 3" Nylon Wing Bolts XL 4/pkg
The outside hex head will fit your glo-plug / prop nut wrench, inside socket is made to fit standard allen wrenches. Both methods insure a safe, no-slip way to secure or loosen wing bolts.