Self Drilling Metal to Wood Roofing Screws Powerpro, LB, White, 10 x 1.5 Inch, ZXL Premium Self Drilling Metal to Wood Screws, Designed for Fastening Steel Roofing to Wood Purlins Used in Post Frame Construction and Plywood or OSB Used in Residential Construction, Produced with Enhanced Corrosion Resistance Coating Over Painted Heads, 2.5 Mils Powder Coat with Chrome Sealer, Molded Zamac 3 Zinc Aluminum Alloy Provides Lifetime Protection Against Red Rust on Head and Washer, Threads Grade from Fine to Coarse to Generate Superior Holding Strength in Various Wood Substrates, Micro Drill Point Reduces Metal Shavings from Embedding in Rubber Washer, Starts Straight Finishes Fast, Professional Drill Bit Included, 40 Year Warranty. Specifications: Color: White. Size: 10 x 1.5 Inch. Country of origin: Taiwan Weight: 4.85 pounds