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Caliburn™ Concrete Screw

Heavy Duty Concrete and Masonry

Recessed Star Drive: Zero stripping, with 6 points of contact
Aggressive Heavy duty threads lock into concrete and can be removed and reinserted without screw damage
Countersinking Bugle Head locks wood to concrete for complete installation and effective anchoring
Caliburn™ PH pan head, which is ideal for an exposed finished look including installation of electrical boxes
Caliburn™ XL washer head design for superior holding power.
The Caliburn™ XL is code approved under ICC report ESR-3251
Climatek™ Coating is AC257 code approved for use in treated lumber

Ideal for use in anchoring to concrete or wood to concrete applications including basement framing and sheds.

Caliburn™ Concrete screws are professionally engineered fasteners with a patented thread design for ease of driving the screw in pre-drilled concrete and similar applications.

Available in three different head designs for multiple applications. Caliburn, Caliburn PH and Caliburn XL are Climatek Coated for high corrosion resistance.

Caliburn's uncompromised drraw and pull-out strength make it possible to be used in jobs which previously required an anchor. The screw's aggressive thread design afford it the ability to be removed and reinserted into the same pilot hole numerous times-- without the concern of the fastener breaking or the threads wearing.

Product Sheet

GRK Headquarters

GRK Fasteners USA
ITW Renovations / Remodeling
155 Harlem Avenue, Building N3E
Glenview, IL 60025
Tel: 877-489-2726
Fax: 847-619-8403

GRK Fasteners Canada
ITW Construction Products
120 Travail Road
Markham, ON L3S 3J1
Tel: 800-263-0463
Fax: 800-895-5160