For years the industry standard was Stainless Steel Bolts, and while the idea of “Stainless Steel is in theory a good one there is one problem:
Stainless Steel and Galvanized Steel are incompatible metals and incompatible metals cause corrosion. The washers were also Stanless Steel compounding the problem.
Additionally the bolt heads were “half-sloted” and that made fitting the driver into the slot problematic sometimes causing slipping and driver bits gouging hands.
We use 1.5 inch Grade-8 Galvanized Bolts with Cone Washers to grab and snug against any hole. We also use Grade-8 Galvanized Serrated Nuts for greater grab upon the G115 Steel Panels. All our bolt heads utilize “Allen” Drivers for greater grab & safety.
Steel Core also offers a complete line of :
Doors, Ladders, Ladder Safety Cages, Locking Ladder Doors, Eave and Mid-Roof Walk-Around Platforms, Roof Platforms, Roof Stairs, Wrap-Around Stairs and Catwalks to satisfy all your needs.