Ring shank for securing drywall. Greater holding power with gypsum board. Flat, slightly countersunk head. Diamond point. Bright finish. 12-1/2-gauge. 1 lb. box. No. 724149: Length: 1-3/8in, Diameter: 12-1/2 ga, Pkg Size: 1 lb, Shank Type: Ring, Head Type: Flat Slightly Countersunk No. 724158: Length: 1-5/8in, Diameter: 12-1/2 ga, Pkg Size: 1 lb, Shank Type: Ring, Head Type: Flat Slightly Countersunk No. 739566: Length: 1-3/8in, Diameter: 12-1/2 ga, Pkg Size: 1 lb, Shank Type: Ring, Head Type: Flat Slightly Countersunk No. 737067: Length: 2in, Diameter: 12-1/2 ga, Pkg Size: 1 lb, Shank Type: Ring, Head Type: Flat Slightly Countersunk