The Hillman Group No. 10 Tan Star Drive Deck Screw is ideal for decking and exterior wood projects. Deck Plus exterior deck screws offer a comprehensive finishing fastener solution, including exterior wood, composite, and trim uses. Engineered with no-strip star drive technology, these deck screws for treated lumber for treated lumber are twice as durable as comparable Philips-drive alternatives. The brown ceramic coating provides superior rust and corrosion resistance with 4 layers of protection - a zinc layer, a chemical adhesion layer, an epoxy coating, and a durable protective finish. This coating protects against weather as well as corrosion due to chemicals found in treated lumber. Countersinking nibs under the head of the screw cut a perfect finished hole by transporting wood fibers out and sealing the surface. Recommended for treated lumber Tan color complements treated wood and cedar projects Flat head with nibs cuts a perfect countersink and seals hole Star drive eliminates stripping and provides superior torque transfer Cut point and serrated threads combine to eliminate pre-drilling, reduce drive torque, and prevent wood splitting Free T25 Star Bit in each package 3 in. deck screws for treated lumber 310 deck screw per retail package 4-layer coating exceeds 1,000 hours in salt spray testing Fast-start self-drilling point prevents splitting and eliminates the need for pre-drilling Flat head leaves a clean, even finish Recommended for use with cedar or ACQ, CA, and CCA treated lumber Limited lifetime warranty against rust & corrosion One (1) 5 lb. box per sellable unit