Cobra Wall Drillers 021T Hollow Wall Anchors, NylonHighlights: Fine centered point that helps guide the anchor into the wall with flawless precision Sharp cutting edge reduces force required to cut the material, making it a self drilling anchor without pre drilling Also, a sharp profile thread cuts deeply into the hole to ensure maximum holding power and stability Available in nylon or zinc With Screw Nylon Dia. Screw=#8L Anchor Per Pack=100 WARNING: This product can expose you to chemicals including