Simpson #9 x 2" Metal-Panel Screw with EPDM Washer, 316 Stainless Steel Solid Carbide Knives preventing the surface mushrooming or

preventing the surface mushrooming or raised edges that can occur with standard thread profiles

where exposure to moisture and corrosive chemicals is a concern

Can be dispensed with a standard caulking tool for easy

or damp environments where reliable performance and clean installation are essential

How many panel thicknesses can the twin-lead thread fasten in one pass

Simpson #9 x 2" Metal-Panel Screw with EPDM Washer, 316 Stainless Steel Solid Carbide Knives preventing the surface mushrooming orSimpson Metal Panel Screw with EPDM Washer, #9 x 2", Type 316 Stainless Steel by Simpson Strong Tie is engineered to fasten aluminum agricultural siding panels directly to wood joists no pre drilling required. Built from Type 316 stainless steel for exceptional resistance to corrosive environments, this hex head screw combines a sharp point, twin lead thread, and an EPDM washer to deliver a secure, weather resistant connection in demanding outdoor and