Ondura Premium Fasteners are the preferred fastener of choice for professionals and contractors. Less fatigue, easier and faster than nails. Allows for the possibility of adjusting (tightening/loosening). Powder coated to ensure high durability against UV and corrosion. Size: #9 Length: 3 In. Finish: Powder Coated Diameter: Head Diameter: Shank Type: Head Type: Hex Point Type: Package Size: 55 Ct. This product can expose you to chemicals including bitumen which are known to the state of California to cause cancer. For more information go to: www.P65Warnings.ca -