#10 Metal-to-Wood screw with 1/4" head. Available in multiple lengths and colors.
 
250 screws per bag. 
 
Head and sealing washer can be painted with oven-cured Polyurethane enamel
Deep thread form for maximum pullout resistance
The sealing washer is non-conductive EPDM rubber
Type-17 point easily penetrates lapped high tension steel