5/8-11×2-1/2 Flat Head Socket Allen Head Bolts 5/8 x 2-1/2 Screws 5/8×11 x 2-1/2
Flat Head Socket / Allen Head Cap Screw / Bolt. Hex Key / Allen Wrench Size:3/8. Thread Pitch:11. It is a lot easier to resolve problems one on one.We will do our best to work out any issues there may be.