Nail: Smooth Shank, Brad-Head finishing nail, 15 Gauge for steel stud and trim application, 1-1/4 Inch, Bright Basic, Sencote. 4m per box. Fits Tool Models: DeWALT D51275K, Porter Cable DA250A; Senco SFN1, SFN30, SFN40; AccuSet A250FN.