Dottie® Lag Screw, Measurement System: Imperial, 1/4 in Thread, 2-1/2 in Overall Length, Steel, Zinc Plated, 7/16 in W Head, Hex Head
Diameter - Thread Size : 1/4 inFinish : Zinc PlatedHead Size : 7/16 in WHead Type : HexMaterial : SteelMeasurement System : ImperialOverall Length : 2-1/2 in
Lag screws are used in woodworking when standard wood screws are too short or too smallLength is determined from the base of the fastener headAlso used in concrete, brick or in mortar when used with lag shields