Engineered for optimum performance in multiple materials, the Power Pro One screw will be the one screw you'll ever need. Developed to outperform and replace standard wood, sheet metal, and concrete/masonry screws, the One Screw program simplifies your tool box by using a single, innovative, engineered screw design to satisfy projects that fasten into wood, metal, concrete, drywall, and plastic. 64 pieces per package Recommended for exterior projects and treated lumber; the Premium Bronze Epoxy Coating provides 4 layers of corrosion protection Every One screw is manufactured with spiral flutes, serrated hi-lo threads, and a 3-sided pyramid point; comes in an innovative plastic package that is reusable, recloseable, and stackable for post purchase use Flat Head design provides clean countersinking in wood and is ideal for wood-to-wood, wood-to-metal, and wood-to-masonry projects Pre-drilling is not required in wood, drywall, plastic, or metal up to 20 gauge thick The T25 Pro-Stik bit included in pack provides stable driving - no wobbling All One screw products offer a Limited Lifetime Warranty Concrete and masonry applications require a pre-drilled a hole, see product packaging for pre-drilling instructions Patented design Finish: Epoxy Manufacturer Color/Finish: Bronze Series Name: One Type: Wood screws Length Measurement: 3-in Screw Thickness: #10 Collated: No Contact Type Allowed: None Drive: Star For Use on Brick: Yes For Use on Composite: No For Use on Concrete: Yes For Use on Drywall: Yes For Use on Metal: Yes For Use on Plastic: Yes For Use on Vinyl: Yes For Use on Wood: Yes Head Type: Flat Material: Steel Materials Fastened: Universal Measure Type: Standard (SAE) Multi-Material: Yes Package Quantity: 1 Point Type: Self-drilling Thread Type: Hi-lo Use Location: Exterior Warranty: Limited lifetime ACQ Approved: Yes CA Residents: Prop 65 Warning(s): No UNSPSC: 31161500