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Galvanized Concrete Power Screws

The POWER-Skru Concrete Screw is a high strength screw anchor with self-tapping threads that offer a unique undercutting design for anchoring into concrete and masonry. No secondary setting is needed. The POWER-Skru Large Diameter Concrete Screw provides high-strength performance with low installation torque. A heavy duty mechanically-galvanized finish enhances corrosion resistance.

Technical Data PDF

Installation in Concrete

Using the proper size carbide bit, drill a pilot hole at least one anchor diameter deeper than the desired anchor embedment.
Blow out concrete dust.
Using an electric impact wrench, or socket wrench, insert anchor into hole and tighten anchor until fully seated. If using an electric impact wrench, start on light torque setting to prevent over torturing or damaging threads.
NOTE: Always wear safety glasses.

Installation in Concrete Block (CMU)
NOTE: Do not use an impact wrench for installation into CMU walls.

Using the proper size carbide bit, drill a pilot hole at least one anchor diameter deeper than the desired anchor embedment.
Blow out concrete dust.
Using a socket wrench insert anchor into hole and hand tighten anchor until fully seated.
NOTE: Always wear safety glasses.

Anchor Diameter	Drill Diameter	Wrench Socket Size	Min. Distance to the Edge	Head Height	Washer Outside Diameter
1/4	1/4	7/16	3/4	1/4	1/2
3/8	3/8	9/16	1-1/8	3/8	3/4
1/2	1/2	3/4	1-1/2	31/64	1
5/8	5/8	15/16	1-7/8	19/32	1-5/32
3/4	3/4	1-1/8	2-1/4	45/64	1-3/8