Fasteners > Screws > Self Drilling Screws | TX-CON Countersunk Phillips Anchor Screw R1000 Coating | TX-CON Countersunk Phillips Anchor Screw R1000 Hours Protective Coating | R1000 Hours Protective Coat. | TX-Con. | About TX-CON | Designed for medium-duty applications when fixing to concrete, brick, or block. | These anchors tap drilled concrete holes mechanically locking to the concrete. | Ideal for quick installation, close anchor spacing or edge distance, and removability. | About R1000 Hours Protective Coating | Silver coating R1000 - 1000 hour salt spray rated. | Ideal for light to medium duty applications into the concrete, brick, block. | Can also be used in wood-based materials. | No pre-drilling required. | Applications | Metal door frames, handrails, lighting fixtures, and window installations.