7 x 1 5/8 Simpson Trim-Head Wood Decking Screws - Square Drive 305 SS - Bulk Pail (4000)

5/16 x 7 Square Pan Gutter Screw Brown (10)

Typical hardness on diameters 1/4 to 1 inch is HRC 25-34

7/16-14 x 6 Hex Cap Screw SS 316 (A4)

1 1/4-12 x 3 Socket Cap Screw Alloy

9 x 2 Simpson Metal-Panel Screw - Hex Drive w/ EPDM Washer 316 SS - Box (100) fully-threaded 7 x 1 5/8 Simpson9 x 2 Simpson Metal Panel Screw Hex Drive w EPDM Washer 316 SS Box (100) . Fasten aluminum agricultural siding panels to wood joists without pre drilling Extra sharp point for quick penetration of aluminum panels without point walking Twin lead thread fastens one to three panel thicknesses securely to wood substrate 5 16" Hex drive Panel screws available with and without aluminum neoprene bonded sealing washers