25 Pack Quick Screw 5" inch Aluminum Hidden Rain Gutter Bracket Hook clip style Hangers with pre inserted 3" long &frac14;" hex head self drilling screw Fits All 5 inch non plastic K-Style Gutters Large #12 screw, with long lasting Zinc Finish and thread cutting point Screw retention dimple - positive thread engagement, less slipping, firm seating, no overdriving Triple Ribs for strength Make this hanger very strong Splitless Clip - Snags less, installs easier and faster