Washer Head Self Drilling Screw #12 x 1-1/2 in., 20 Pieces
- Diam/Gauge: #12
- Length: 1-1/2 in.
- Size: #12 x 1-1/2 in.
- Material: Steel
- Self drilling screws designed for power driving wood or metal to metal
- Drill point drills its own hole, taps mating threads and fastens firmly in one operation
- Steel Backed Neoprene Washer for water proofing
- Zinc finish for moderate corrosion protection
- No need to pre-drill a hole
Self-drilling screws are manufactured for use in wood, fiberglass and metal. They possess a drill point which enables the screw to drill its own hole in thin gauge steel; no pre-drilled holes are necessary. The sharp threads create their own mating thread when drilled into the material, and provide a stronger grip to your surface. Perfect for roofing construction, these screws have a neoprene washer that provides a water-tight seal, and prevents corrosion between surfaces.
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