Assembled Product Length: 3" Fastener Drive Type: TORX Fastener Diameter (Imperial): 0.16" Fastener Length (Imperial): 3" . The larger head with underhead box-nibs provides increased bearing in structural applications and provides clean and easy countersinking. SawTooth type-17 tip for quick starts with no pre- drilling. Serrated threads reduce installation torque for easier driving. The 6-lobe drive reduces driver-bit cam-outs, resulting in easier installations and longer bit life. Quik Guardcoating provides protection in indoor and outdoor applications. Multipurpose wood-to-wood applications including framing. 100 pack