1/2" x 4" Large Diameter CONFAST Zinc Plated Concrete Screw, 25/Box

• EASY TO​ ​INSTALL:  Fast, secure installation
• EASY TO​ ​REMOVE:  Simply turn clockwise and back the screw out of the hole
• ONE PIECE DESIGN:  No nuts or washers the anchor comes complete

Applications 
The anchor is made from hardened carbon steel zinc plated. This anchor is designed for use in Concrete, Block, and Brick.

Environment 
The anchor is designed for use in a dry environment.

Head Style 
The anchor is a Hex Washer Serrated head and is designed to allow the head to sit on top of the surface of the item being attached.

Hole Diameter/Bit Diameter 
The anchor requires a 1/2" hole to be drilled in the base material (Concrete, Block, and Brick). The hole should be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill.

Driver Required 
A 3/4" is required for driving the anchor into the base material.

Diameter of Anchor 
The diameter of the anchor is 1/2".

Length Anchor 
The length of the anchor is 4"

Packaging 
The anchor is packaged with 25 pieces per box .

Minimum Embedment 
The minimum anchor embedment into the concrete is 2". Therefore, the anchor must be installed so that a minimum of 2" of the anchor is embedded into the concrete.

Depth of Hole 
The depth of the hole that is required for the anchor should be a minimum of 1/2" deeper than the anchor will penetrate the concrete. This will allow space for dust created during the installation process to fall, which will prevent the anchor from bottoming out in the hole before full penetration into the concrete.

Maximum Fixture Thickness 
The maximum fixture thickness or the maximum thickness of the material being fastened for a anchor is 2". This will ensure that the minimum embedment of 2" will be met.

Fixture Hole Diameter 
The hole in the fixture or material being fastened must be larger than the designated diameter of the anchor. The 1/2" diameter anchor requires the hole in the fixture to be 9/16".

Wrench Size 
The size of the wrench required to turn the nut to set the anchor is 3/4".

Spacing between Anchors 
Each anchor must be spaced a minimum distance of 8" from each other when measured center to center.

Edge Distance 
It is very important not to install the anchor any closer than 5" from an unsupported edge of the concrete.

Holding Values - Ultimate Load Values in 2000 PSI Concrete