Grind King Rocketbolts are not phillips or allen head. I guess you could call them hammerhead? No more loose trucks and damaged baseplates from hardware that gets loose over time. Grind King hardware taps into your board and then tightens from the bottom (tightening of the nut). Essentially the hardware is sucked through your board until it is flush. The Star-shaped head is flat underneath and not countersunk, staying tighter and helps prevent over-tightening. Vertical fins on the bolt shaft lock-into the deck, providing more stability and eliminate loose bolt wobble. This prolongs deck life and makes removing your trucks a breeze. Includes: 8 1" Rocket Bolts and 8 Nuts in reusable retro-style tin box and sticker.