Simpson Strong-Tie - STB2-503344SS 1/2" x 3-3/4" Strong-Bolt® 2 304 Stainless Steel
These anchors come packaged with 25 pieces per box and are designed for fastening items to concrete.
- Bit size 1/2"
- Minimum embedment See PDF
- Thread Length 2-1/16"
- Zinc plated for indoor use
- Do not use in vibratory loads
- Packaged with zinc plated nuts and washers
- 1/2" inch diameter x 3-3/4" inch long
- Spacing must be a minimum of 10 anchor diameters
- Free freight on all orders over $25.00
||1/2" - 13
|2000 PSI Concrete - Pull-Out (lbs.) *
|2000 PSI Concrete - Shear (lbs.) *
||304 Stainless Steel
|Minimum Edge Distance
|Maximum Fixture Thickness
|Minimum Fixture Hole Diameter (In Place)
|Minimum Fixture Hole Diameter (Hole Spotted)
|Length ID Code
||50 - 60 ft./lbs.
|Wrench Size For Nut
||End to End
* Values shown are average ultimate values and are offered only as a guide and are not guaranteed. A safety factor of 4:1 or 25% is generally accepted as a safe working load
The anchor is made from 304 Stainless Steel. This anchor is designed for use in Concrete only, and should never be used in block or brick base material.
The anchor is designed for use in a wet environment.
Hole Diameter/Bit Diameter
The anchor requires a 1/2" hole to be drilled in the base material (Concrete only). The hole should be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill.
Diameter of Anchor
The diameter of the anchor is 1/2".
The length of the anchor is 3-3/4"
The threads on the anchor are national coarse threads that measures 1/2" with 13 threads per inch, commonly referred to as 1/2"-13.
The length of the threads on the anchor is 2-1/16" in length.
The anchor is packaged with 25 pieces per box and is packaged with the correct number and diameter of nuts and washers.
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.
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".
The size of the wrench required to turn the nut to set the anchor is 3/4".
To be set properly in the concrete, the anchor must be torqued to between 60 ft./lbs.
The anchor is stamped with the letter E on the threaded end to allow inspection of the anchor after installation. The letter "E" designates an overall length of the anchor as between 3-1/2" up to, but not including 4" in length.