Tapcon Concrete Screw Anchors - Star Flat Head Option:1/4" x 3-1/4" / 100 Piece Box Does not require any pre-drilling

Does not require any pre-drilling and can be simply installed by tightening the screws

These knives are for scoring Aluminum Composite (sandwich) Materials (ACM) with a 90° angle V-Groove and flat bottom width of 0

4 Flute unique variable design for faster speeds and feeds

Ultra hardened cutting edge for up to five times longer life than standard blades

Tapcon Concrete Screw Anchors - Star Flat Head Option:1/4" x 3-1/4" / 100 Piece Box Does not require any pre-drillingTapcon Anchors are engineered to be installed fast and trusted for a lifetime. The best when it comes to concrete anchoring. Masonry anchors and matching drill bits. Star Flat Head Corrosion Resistant Blue Climaseal Finish Engineered for a more stable drive with no bit slip