5F1 Features: -Nail.-Made to conform to ASTM F1667.-15 Gauge.-Head size: 0.1055".-535 Per lb.-1 lb box.-5D Size. Color/Finish: -For trim and fine finish work.-Small diameter and cupped head for countersinking beneath the wood surface for filling and smooth finish appearance. Dimensions: -Overall dimensions: 1.75" H x 4.5" W x 3.5" D.