Ideal 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. Kit contains: 6-8x3/4(100pcs.), Pan Head Phillips Sheet Metal Screws(100pcs.), and a 3/16 Drill Bit * For general applications and light duty use in brick, hollow block, concrete, drywall or plasterWorks well in hard surfaces and hollow surfaces where no studs or beams are behind the surfaceRibs prevent anchor from turning in the hole during installation