#9 Gauge. 1/4" H-Hex type head with Hi-Lo type thread. Type 17 extra sharp point increases penetration of the metal virtually eliminating the tip of the screw walking across the metal. 1/2" neoprene sealing washer provides a moisture resistant barrier when properly installed. Plated with top quality dacromate, for corrosion resistance.
: This product can expose you to chemicals including Nickel (Metallic), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.p65Warnings.ca.gov