Simpson PDPAT-50K 1/2" Knurled Top-Hat Pins - Zinc, Pkg 100 18 Gauge Straight T-Head Finish Nails They secure into concrete and

They secure into concrete and brick to hollow and grouted CMU

With their aggressive thread design and large washer-style head

The #5 Round EPDM Metal Roof Pipe Boot with Install Kit is a complete solution for sealing pipe penetrations on metal roofs

Corner Joist Connections: Ensures structural stability in corner placements while offering a clean look

Clean Install: No inserts or epoxy

Simpson PDPAT-50K 1/2" Knurled Top-Hat Pins - Zinc, Pkg 100 18 Gauge Straight T-Head Finish Nails They secure into concrete andThe PDPAT is a hardened steel, powder actuated top hat pin designed to fasten building components to concrete, steel and CMU. The PDPAT consists of a 0. 300" diameter head, fastener with a 0. 157" diameter shank and a steel top hat assembly for fast loading and centering of the pin in the nosepiece of the tool. California Residents: WARNING