Details

Caliburn XL Concrete Screws by GRK Fasteners are professionally engineered fasteners for concrete and similar applications. They feature a patented thread design for ease of driving the screw. The Caliburn™ XL are Climatek coated for high corrosion resistance. They are designs for multiple applications with the recommended GRK Drill Bits.

Caliburn™ XL Concrete Screws by GRK Fasteners are easy to use. Simply pre-drill pilot hole with 1/4 Inch GRK Concrete Drill Bit, clear concrete dust from hole, and drive the screw with GRK #40 Starhead Bit.

Specifications

DecksDirect #	5197
Brand

Drive Type	Star/Torx
Head Type	XL washer head
Screw Length	2-3/4 in, 3-1/2 in, and 5 in
Screw Size	19/64 in
Colors	Gold
Material Type	Case hardened steel with Climatek coating
Pack Size	2-3/4 in: 25 pack 3-1/2 in: 25 pack and 400 bulk pack 5 in: 25 pack
Coverage Estimate	n/a
Included Accessories	25 pack: (1) 1/4 in Concrete Blitz Drill Bit, (1) #40 Starhead Bit
Warranty	GRK Limited Lifetime Warranty
Other	Pre-drill with 1/4 Inch Concrete Drill Bit for GRK Fasteners Drive screw with #40 Starhead Bit by GRK Fasteners