R4 No. 9 X 2-1/2 In. L Star Countersk Head Coated Steel Multi-Purpose Screws 5

GRK Fasteners R4 screws are self-countersinking fasteners engineered for professional-grade framing, decking, and general wood construction. The patented underhead design features saw-blade-like cutting teeth and self-contained cutting pockets that work together to transport drill dust away from the screw hole while cutting a clean, precise opening into even brittle materials without cracking or splintering the surface. This innovative construction allows the fastener to countersink smoothly into the hardest woods and treated lumber, closing the hole with precision and leaving no damaged fibers around the head.

These steel screws are coated with Climatek protection, offering reliable corrosion resistance in both indoor and outdoor applications, making them suitable for harsh weather conditions and treated lumber exposure. The #9 x 2-1/2 inch length with four-threaded CEE thread design reduces driving torque while increasing drawing strength, enabling faster installation and reducing labor time without the need for pre-drilling. With 575 screws per pack, you'll have a dependable supply for substantial framing projects.

Features and Benefits

• Self-Countersinking Design: Patented underhead with cutting teeth and pockets transport drill dust away, creating clean holes in even the most brittle materials without cracking or surface damage.
• Star Drive Head: Six-point star drive prevents cam-out and stripping, ensuring a secure grip and improved installation productivity.
• Climatek Coating: Protective coating prevents corrosion in treated lumber and harsh weather environments, extending fastener life.
• Low-Torque Thread: Four-threaded CEE thread design minimizes installation torque, reduces friction on the screw shank, and increases drawing strength for easier, faster driving.
• Versatile Applications: Ideal for framing, decking, floor work, railings, and general wood construction projects requiring reliable multi-purpose fastening.

Specifications

• Brand: GRK Fasteners
• Model: 01101
• Thread Size: #9
• Length: 2-1/2 inches
• Head Style: Star Drive countersink head
• Material: Steel
• Coating: Climatek
• Pack Count: 575 screws