Hillman 1/4 in. S X 3 in. L Hex Zinc-Plated Steel Lag Screw 100 pk

Acoustical Lag Screws are designed to attach fixtures and other objects to the ceiling. Manufactured with wood screw threads, sharp points and a hole on the flat end, this fastener is ideal for tie-down and tie-wire applications. Other common applications include hanging duct work, pipe and other fixtures. Install using the Acoustical Lag Driver, an adjustable wrench or pliers. Acoustical Lag Driver sold separately.