#14 X 1" Phillips Flat Head | Self-Drilling Screw | Zinc plated | DP3 | Bulk Box 3000 application-ferrous-fast-cut Phosphate coating protects the fastener

Phosphate coating protects the fastener from corrosion although it is recommended that they are used for interior use only and not in treated lumber

For Ferrous metals

The fastener is Zinc and Zinc Nickel plated before being electro coated to provide ultimate corrosion protection

Bullard also offers a silicon carbide specification for non-ferrous materials

#14 X 1" Phillips Flat Head | Self-Drilling Screw | Zinc plated | DP3 | Bulk Box 3000 application-ferrous-fast-cut Phosphate coating protects the fastener35 Lbs Net Weight. For light to heavy gauge metal to metal. Self Drilling Tip DP3. Phillips Flat Head Screw Zinc Plated Low Carbon Steel Available in sizes #6, #8, #10, #12, #14. Use Zinc plated self drilling screws for light to heavy gauge metal to metal fastening applications such as sheet metal to steel stud. Attach fixtures, backup plates, indoor frames and similar items. Self Drilling screw point is available in DP3. TORNILLO AUTOTALADRANTE CON