FASN5161: 5 / 16" - 18 x 1" Slotted truss head machine screw & hex nut, zinc coated. Used for mounting signs to GP-4 & GP-5 pedestal bases.
Sold in box of 25 pcs only.

FASN516216: 5 / 16" - 18 x 2 1/2 " Hex washer head, self drilling and tapping tek screw, zinc coated. Used for mounting signs to channel or square sign post..
Sold in box of 25 pcs only.