Do it Best 4-1/2 In. x 7 ga x 30d Bright Ring Shank Pole Barn Nails (1550 Ct., 50 Lb.)

Ring shanked, oil quenched with flat countersunk head and diamond point. For large pole-barn, post frame construction where superior holding power is necessary. Safety glasses are recommended when driving hardened nails. 5 lb. box.

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer.