Click to expand Tap to zoom AFS51612 Flat Hd. Soc. C/S 5/16 x 1/2' by Armstrong Sale $0.25 SKU AFS51612 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Flat Hd. Soc. C/S 5/16 x 1/2'