5/16" x 5" Mounting Screw - Stainless Steel

Need more length than a standard mounting screw? This 5/16″ x 5″ structural mounting screw from StairSupplies has the same 5/16″ diameter as the 3-1/2″ mounting screws, in a longer 5″ length. It is made from stainless steel, so it resists corrosion and works well on exterior projects. Reach for it when thicker framing, blocking, or shims call for extra embedment so your posts and brackets stay firmly attached.

Key Features

- 5/16″ diameter x 5″ length

- Stainless steel construction

- Corrosion resistant for outdoor use

- Longer option to the 3-1/2″ mounting screw