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Large Diameter Screw
Heavy duty concrete anchor that is designed to screw into a drilled hole in concrete. They cut threads into the material when tightened to secure into place. They are easy to use and removable.
Base Materials: Concrete, Masonry. Solid or Hollow. Use in solid concrete for best strength performance.
Other Names: LDT(Large Diameter Tapcon®), Wedge Bolt®, Titen HD®
Installation: Drill recommended sized hole in base material. Screw the concrete screw into the hole until it is flush.
Drill Bit Sizes
| Anchor Dia. | Powers Wedge Bolt Blue * | Powers Wedge Bolt Orange | Red Head LDT | Simpson Titen HD |
|---|---|---|---|---|
| 1/4 | 1/4 | 1/4 | ||
| 3/8 | 3/8 | 3/8 | 5/16 | 3/8 |
| 1/2 | 1/2 | 1/2 | 7/16 | 1/2 |
| 5/8 | 5/8 | 5/8 | 1/2 | 5/8 |
| 3/4 | 3/4 | 3/4 | 5/8 | 3/4 |
*Needs a special bit made by Powers
Allowable Load Data
| Anchor Dia | Embed Depth | Tension (lbs.) | Shear (lbs.) |
|---|---|---|---|
| 1/4 | 1 | 335 | 470 |
| 1 1/2 | 535 | 520 | |
| 2 | 985 | 520 | |
| 2 1/2 | 1165 | 520 | 3/8 | 1 1/2 | 630 | 860 |
| 2 | 980 | 860 | |
| 2 1/2 | 1330 | 860 | |
| 3 | 1935 | 1080 | |
| 3 1/2 | 2535 | 1300 | 1/2 | 2 | 985 | 1420 |
| 2 1/2 | 1300 | 1620 | |
| 3 | 1950 | 1810 | |
| 3 1/2 | 2120 | 2040 | |
| 4 | 3155 | 2270 | 5/8 | 2 1/2 | 1180 | 2560 |
| 3 | 1845 | 2560 | |
| 3 1/2 | 2510 | 2560 | |
| 4 | 3190 | 2785 | |
| 4 1/2 | 3875 | 3010 | |
| 5 | 4555 | 3240 | 3/4 | 3 | 1620 | 3030 |
| 3 1/2 | 2330 | 3705 | |
| 4 | 3035 | 4380 | |
| 4 1/2 | 3395 | 4665 | |
| 5 | 3755 | 4935 | |
| 5 1/2 | 4115 | 5210 | |
| 6 | 4475 | 5490 |
Allowable Load (Safety Factor of 4). Based off 4000 psi Normal Weight Concrete
Powers Spec Sheet