The Everbilt Cement Board Screws offer exceptional features to make any cement board installation a breeze. The cement board screw will start fast, leveraging the sharp point to engage with the high low threads gripping the dense material as you drive. Whatever you install over your cement board, this fastener will not get in the way. With underhead nibs, material is bored from the fastener head location to ensure the fastener seats flush to the surface of the board. The rings on the surface of the head offer additional surface area for exceptional adhesion of tape and thinset that may be applied.. Drive Style: Star. Fastener Color: Green. Fastener Material: Carbon Steel. Fastener Plating: Painted. Fastener Type: Cement Board Screws. Features: No Additional Features. Grade: Not Graded. Head Style: Flat Head. Included: Driver Bit,Screw. Interior/Exterior: Exterior,Interior. Measurement Standard: SAE. Measurement System: Inches. Package Quantity: 750. Product Weight (lb.): 5.43 lb. Returnable: 90-Day. Thread Pitch (mm): 3 mm. Thread Style: Hi-Lo Thread. Threads Per Inch (TPI): 9 TPI. Screw Length: 1-1/4 in. Size: #9. Screw Length: 1-1/4 in. Head Style: Flat Head. Package Quantity: 750. Size: #9. Drive Style: Star. Thread Style: Hi-Lo Thread. Fastener Material: Carbon Steel