14 x 2" Hex Washer Head Steel Zinc Wood Truss/Purlin – Polar Blox
8-15 x 0.75 in. Flat Head Phillips Wood Screw - AndyMark, Inc
Wood to Metal – Self Drilling Screws – Direct Metals
Metal Roofing Screws: (250) 10 x 2" ABC Gray Hex Head Sheet Metal Roof Screw. Self Starting Metal to Wood siding Screws. EPDM Washer. Colored Head: Amazon.com: Industrial & Scientific
ZXL#12 Long Life Metal Roofing Screws (Metal to Wood) 1.5" Long Metal – Www.MetalRoofingScrews.com