Teks Elite drill point roofing screws (75-pack) provide secure metal-to-wood fastening with strong holding power, without the need to pre-drill. The Maxiseal washer provides a waterproof seal even when fasteners are driven at an angle. The Hi-Grip thread provides strong holding power as it grips to roof sheeting to create a strong join preventing water entry and over-drilling. In addition, the Shankguard feature above the Lo-Grip thread protects from under-roof corrosion resistance as it cuts a slightly larger hole in the roofing profile than the shank diameter, preventing the fastener from scratching the edges and maintaining its corrosion-resistance coating in-tact. The premium finish provides exceptional corrosion resistance in harsh outdoor environments.