Dimensions: .25" Shaft - .42" Width/Height - 1.25" Length - Use 5/16" Hex Bit Use 3/16" Carbide Tip Drill Bit for Pilot Hole - Drill Bit is Not Included Used for General Light to Medium Duty Concrete - Interior/Exterior Applications These Blue Concrete Anchor Screws Are Hardened To Tap Their Own Threads During Installation Blue Nano Coating Provides Protection Against Rusting and Corrosion of the Screws 1/4 x 1-1/4" Blue Carbon Steel Hex Head Concrete Anchor Screws

-Dimensions: .25" Shaft - .42" Width/Height - 1.25" Length - Use 5/16" Hex Bit
-Use 3/16" Carbide Tip Drill Bit for Pilot Hole - Drill Bit is Not Included
-Used for General Light to Medium Duty Concrete - Interior/Exterior Applications
-These Blue Concrete Anchor Screws Are Hardened To Tap Their Own Threads During Installation
-Blue Nano Coating Provides Protection Against Rusting and Corrosion of the Screws

Blue Carbon Steel Hex Head Concrete Anchor Screws
Blue Carbon Steel Concrete Anchor Screws Used to Attach Materials to Concrete, Brick or Concrete Block They Can be Removed Unlike Expansion Anchors. For Best Results Please Follow These Simple Installation Instructions. Pre- Drill a Pilot Hole with a 3/16" carbide tip drill bit. The Hole Should be Drilled 1/4" - 1/2" Deeper Than the Screw Length to Allow for Dust Debris. Remove as Much Debris from the Hole as Possible Using Air, Vacuum or Wire Brush. Its Important Not to Over-Torque Screw to Prevent Stripping the Concrete Hole. This Listing is for a Quantity of 100 Screws.