Teks #9 x 1-1/2 in. External Hex Drive Washer Head Roofing Screws (400-Pack)

Teks roofing screws provide secure metal to metal fastening with strong holding power, without the need to pre-drill. Engineered drill-point and flute remove material efficiently and properly size the hole for threads. Ideal for attaching roofing and wall panels to steel framing. Self-sealing neoprene washer provides a waterproof seal and a premium finish provides exceptional corrosion resistance in harsh outdoor environments. Installs with a standard screw gun and a 5/16 in. hex drive bit.|Ideal for metal to wood applications and provides exceptional corrosion resistance especially when fastening roofing panels to wood structures|Self-sealing neoprene washer provides a waterproof seal in harsh outdoor environments|High performance drive surfaces and hex head reduce camp-outs to penetrate surface the first time for easy installation|Zinc based with Thermalset polyesther metal filled coating (metal in coating is zinc)|Precise sharp point designed to drill, tap and fasten all in 1 motion|No pre-drilling necessary|Provides secure fastening with strong holding power|Highly versatile|Common project applications: roofing, HVAC, steel stud framing, gutters and register vents