Hillman #10 - 16 x 3/4 In. Hex Washer Head Self-Drilling Sheet Metal Screw (100 Ct.) Mortar Non-staining formula cleans up with

Non-staining formula cleans up with water

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This GFCI tester uses advanced circuitry and a patent-pending proprietary design to precisely detect the required low resistance (less than 10ohms) on ground wire and provides a clear and easy-to understand single LED readout indication for correct wiring or Bad Ground

Not suitable for applications involving heat-treating

Hillman #10 - 16 x 3/4 In. Hex Washer Head Self-Drilling Sheet Metal Screw (100 Ct.) Mortar Non-staining formula cleans up withHex washer head sheet metal screws. Self drilling points that drill, tap, and fasten in 1 operation. Good for attaching almost any type of material to metal. Sharp threads create their own mating thread when drilled into the material. Zinc. 100 piece pack.