Used for cement board siding, fencing, and exterior trim. Hot dipped galvanized for exterior use. Fits most 15-degree wire coil nailers including: Bostitch N66C-1/N66BC-1; Grip-Rite GRTCS250; Hitachi NV65AH/NV65AH-2, NV75AG, NV50AG, AV50AE, NV65AC, NV65AB; Makita AN611, AN621; Paslode P275C, 3250C/HSF, HSF; Porter Cable 200-250; and Senco SCN45, SCN 49, SCN55, and SCN56.