Grip-Rite 1/4 x 1-3/4” Hex Washer Head Steel Concrete Screws Stove Parts & Accessories [Conical Spring] The fixed zinc-plated

[Conical Spring] The fixed zinc-plated square spring has a precise conical shape that grips in fewer turns and can dead end a single wire[Ergonomic Grip] Entire connector features a ribbed texture for easier twisting and a more secure gripping surface to increase your productivity[Thermoplastic Shell] NSI connectors have a flame-retardant UL 94V-2 thermoplastic body that delivers durable performance and electrical insulation[Compact Design] Easy to install in tight areas

Fits all standard doors 1-3/4'

Designed with two handles for easier use and handling

5/8" OD Compression (1/2" Nominal Compression) x 3/8" OD Compression

Oil & Abrasion Resistant

Grip-Rite 1/4 x 1-3/4” Hex Washer Head Steel Concrete Screws Stove Parts & Accessories [Conical Spring] The fixed zinc-platedHigh holding power. For use in ligh duty anchoring, door and window frames, thresholds, plumbing straps and electrical conduits. Taps its own thread in concrete, brick and other masonry products. Drill the starter hole, drive the screw and the procedure is complete.