Female-Threaded Anchors for Block and Brick
Also known as double expansion anchors, these expand from both sides for full contact and a secure hold. To install, tap into a drilled hole with a hammer and position your fixture. Then, insert a screw or threaded rod and tighten. For maximum expansion, the anchor should protrude slightly above the surface before threading the screw. Pull-out strength and shear strength values are 25% of the ultimate values.
For technical drawings and 3-D models, click on a part number.
Strength, lbs. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Drill Bit Size | Min. Installation Dp. | Dia. | Pull-Out | Shear | Tested In | For Use In | Pkg. Qty. | Pkg. | |
Zinc Alloy | |||||||||||
1/4"-20 | 1 3/8" | 1/2" | 1 1/4" | 1/2" | 220 | 270 | 4,000 psi Concrete | Block, Brick, Concrete | 10 | 000000000 | 000000 |
5/16"-18 | 1 5/8" | 5/8" | 1 1/2" | 5/8" | 370 | 500 | 4,000 psi Concrete | Block, Brick, Concrete | 10 | 000000000 | 00000 |
3/8"-16 | 2" | 3/4" | 1 3/4" | 3/4" | 500 | 750 | 4,000 psi Concrete | Block, Brick, Concrete | 5 | 000000000 | 00000 |
1/2"-13 | 2 1/2" | 7/8" | 2 1/4" | 7/8" | 870 | 1,000 | 4,000 psi Concrete | Block, Brick, Concrete | 1 | 000000000 | 0000 |
5/8"-11 | 2 3/4" | 1" | 2 1/2" | 1" | 1,500 | 2,500 | 4,000 psi Concrete | Block, Brick, Concrete | 4 | 000000000 | 00000 |
3/4"-10 | 3 15/16" | 1 1/4" | 3 1/2" | 1 1/4" | 2,000 | 3,300 | 4,000 psi Concrete | Block, Brick, Concrete | 1 | 000000000 | 0000 |