Simpson GDP-75KT 3/4" Concrete Pins w/Fuel Cell, Pkg 1000 HGUS/HHUS Heavy Face Mount Hangers these screws feature a square-drive

these screws feature a square-drive recess for slip-free engagement that reduces cam-out and speeds up installation

Pour and finish the concrete as required

Easy Installation: Works with Outdoor Accents structural screws and hex-head washers

Tapcon 410 Stainless Steel Phillips Flat Head Concrete Screws are designed for fastening into concrete

Simpson GDP-75KT 3/4" Concrete Pins w/Fuel Cell, Pkg 1000 HGUS/HHUS Heavy Face Mount Hangers these screws feature a square-driveSimpson Strong Tie GDP concrete pins are designed to work with the GCN MEPMAG gas actuated concrete nailer as well as with most major brand gas actuated concrete nailer tools. The patented 10 fastener strip is designed with break away plastic. The pins are designed for use in A36 and A572 steel, concrete, CMU block and sand lightweight concrete over metal deck. Every box of GDP concrete pins comes with 1 GFC34 Fuel Cell.