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The 14 x 1 1/8-inch U-Seal T-1 Self Drilling fastener from Dynamic Fastener is designed to be used with the company’s Dyna-Flash pipe flashings for metal roofs. The T-1 point is best suited for fastening into a metal roof. The extra 1/4-inch of length better allows for the thickness of the Dyna-Flash’s outer ring of and for the necessary sealant that goes under the ring. The fastener is available with the Dyna-Coat 1,000-hour salt spray premium coatings.

(800) 821-5448; www.dynamicfastener.com.