The Hillman 6-8 x 3/4 in. Blue Conical Plastic Anchor with Pan-Head Screws and PHP/SMS is ideal for anchoring in concrete, brick or wallboard. Compatible with various diameter sheet metal screws, this plastic anchor is corrosion-resistant. Use this plastic anchor for general, light-duty, static applications where holding power is not critical. Enjoy quality results with Hillman's plastic anchor! Use plastic anchor indoors or outdoors For use in brick, concrete, drywall, hollow block, or plaster Plastic anchor is simple to use 6 pieces per retail package 10 Fas-Paks per sellable unit Plastic anchor provides superior rust and corrosion protection Split in anchor helps ensure expansion on 2 opposing sides Ribs prevent plastic anchor from turning in the hole during installation Pre-drilled hole required