Simpson PDPA-287 2-7/8" Drive Pins - Mechanically Galvanized, Pkg 100 Hex Head 410 Stainless Steel Masonry Screws These helical wall ties are

These helical wall ties are made from 304 stainless steel for a long lasting service life and excellent corrosion resistance

or concrete

leveling and fitting posts is quick and easy

routed header/post

Built for durability

Simpson PDPA-287 2-7/8" Drive Pins - Mechanically Galvanized, Pkg 100 Hex Head 410 Stainless Steel Masonry Screws These helical wall ties areThe PDPA is a hardened steel, powder actuated fastener designed to fasten building components to concrete, steel and CMU. The PDPA consists of a fastener with a 0. 300" diameter head and a 0. 157" diameter shank. The PDPA provides maximum jobsite productivity with fast installation. California Residents: WARNING