9 x 1-1/4 in. Star Drive Screws (185-Pack)

In Packaging?: Yes

Damaged?: Unknown


Backer-On Rock-On 1-1/4 in. cement board screws (185 pack) are the premier fastening solutions for installing cement boards. The patented serrated head design countersinks for flush seating at any angle, providing a smooth surface for tile installation. The star drive recess combined with Stikfit bit supports easy one-handed installations and eliminates cam outs. The premium corrosion resistant finish prevents rust from bleeding into grout, making Backer-On Rock-On screws the perfect choice for use in high moisture areas such as bathrooms and kitchens. Drive Style: Torx. Fastener Color: Green. Fastener Material: Carbon Steel. Fastener Plating: Polymeric Zinc. Fastener Type: Cement Board Screws. Features: Self Tapping. Grade: Not Graded. Head Style: Bugle Head. Included: Driver Bit. Interior/Exterior: Interior. Measurement Standard: SAE. Measurement System: Inches. Package Quantity: 185. Product Weight (lb.): 1.16 lb. Thread Pitch (mm): 2.6 mm. Thread Style: Serrated Thread. Threads Per Inch (TPI): 10 TPI. Screw Length: 1-1/4 in. Size: #9. Head Style: Bugle Head. Size: #9. Drive Style: Torx. Thread Style: Serrated Thread. Fastener Material: Carbon Steel.