Concrete Flat Washer Head Screw
Caliburn™ screws are professionally engineered fasteners for concrete and similar applications. They feature a patented thread design for ease of driving the screw. They are available in different head designs for multiple applications with the recommended GRK™ Drill Bits. Caliburn™, Caliburn™ PH and Caliburn™ XL are Climatek™ coated for high corrosion resistance.
Features:
Star Drive Recess
Complete and Effective Installation
Case Hardened Steel
To Use:
Pre-drill pilot hole with 3/16 Concrete Drill Bit for Caliburn™ and Caliburn™ PH screws, or 1/4 GRK Concrete Drill Bit for Caliburn™ XL screws.
Clear concrete dust from hole.
Drive the screw with GRK #25 or #30 bit for Caliburn™ and Caliburn™ PH screws, or #40 bit for Caliburn™ XL screws.
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