Simpson PDPAT-100 1" Top-Hat Pins - Zinc, Pkg 100 LSTHD/STHD Strap-Tie Holdowns these retrofit anchor bolts are

these retrofit anchor bolts are installed into cured concrete

and foundation upgrades

An SDS-Plus rotohammer along with the proprietary HELITOOL37A Installation Tool

With the SDS-plus rotohammer in hammer mode

Simpson PDPAT-100 1" Top-Hat Pins - Zinc, Pkg 100 LSTHD/STHD Strap-Tie Holdowns these retrofit anchor bolts areThe 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