No.18 X 3-1/2 In. L Star Bugle Head Yellow Zinc Steel Concrete Screws 25 Per Bo

grk fasteners no.18 x 3-1/2 in. l star bugle head yellow zinc steel concrete screws 25 per bo - Description

Cailburn Concrete screws are professionally engineered fasteners with a patented thread design for ease of driving the screw in 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 draw and pullout strength make it possible to be used in jobs which previously required an anchor. The screws 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. Zero stripping with six points of contactAggressive heavy duty threads lock into concrete and can be removed and reinserted without screw damageESR-3251 approved for use in anchoring to concrete.Caliburn XL washer head designed for superior holding powerClimatek coating is AC257 code approved for use in treated lumber