Cobra 673J Hex Head Concrete Screws, 3/16" x 2-3/4" Rainy_Weather Allows for up to three

Allows for up to three different phone lines

Works with both fixed mount and ShelfTrack adjustable mounting systems

For sealing windows

Head Weight: 16 lb

Cobra 673J Hex Head Concrete Screws, 3/16" x 2-3/4" Rainy_Weather Allows for up to threeHighlights: Size: 3 16" x 2 3 4" 1 4" Socket Drive Socket Drive Drill Bit Anchors per pack: 25 Designed for maximum holding power Made of high grade steel with special corrosion resistant coating Socket Drive and drill bit are included as a bonus in all packs of 25 and 100 WARNING: This product can expose you to chemicals including Nickel (Metallic) which is known to the State of California to cause cancer and birth defects or other reproductive harm.