Check the listing for details. Blue Conical Plastic Anchor Hillman 10-12 1", 100 pieces per box #370342 NIB. Condition: New. Listed at 6.00 USD. Hillman #10-#12 Thread X 1" Concrete Drywall Plastic Anchor 24 boxes @100/Box 370342 NEW At $6.00 per box or all 23 boxes for $75. Product informationIdeal for anchoring in concrete, brick or wallboard, plastic anchors work well with various diameter sheet metal screws. The anchor is corrosion resistant and a pre-drilled hole is required. Use these anchors for general, light-duty, static applications where holding power is not critical. These plastic anchors work with various diameter sheet metal screws. Ideal for anchoring in concrete, brick or wallboard. The anchor is corrosion resistant, and a pre drilled hole is required.For general applications and light duty use in brick, hollow block, concrete, drywall or plasterRibs prevent anchor from turning in the hole during installationSplit in the anchor helps ensure expansion on 2 opposing sidesProvides superior rust and corrosion protectionEasy installation100 pieces per retail package