Hillman Washer Sheet Metal Screws No. 10 X 1-1/2 " Hex Head/Slotted Hex Head Box Self Piercing sheeters are specifically designed to fasten metal sheeting with out drilling and have self tapping threads to provide a stronger grip to your surface. These screws puncture the metal roofs and have a neoprene washer provide a water tight se; ; Brand Name: Hillman Callout Size: No. 10 Length: 1-1/2 in. Head Type: Hex Washer Head Product Type: Self-Piercing Screws Container Size: 2500 lb Number in Package: 1 pk Color: Silver Finish: Ceramic Point Type: Self-Piercing Self Tapping: Yes Packaging Type: Boxed Thread Type: Coarse Self Drilling: No Indoor or Outdoor: Indoor Usage: Wood, Fiberglass and Metal Material: Steel Features Slotted Hex washer head For fastening light ga. metal or fiberglass to wood Neoprene washer Zinc plated steel USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.