Code listed for cracked and uncracked concrete, and masonry applications, the Strong-Bolt 2 wedge-type expansion anchor is an optimal choice for high-performance even in seismic and high-wind conditions. Dual undercutting embossments on each clip segment enable secondary expansion should a crack form and intersect the anchor location; this feature significantly increases the ability of Strong-Bolt 2 to carry load if the hole expands.
STB2-37234 |
STB2-37300 |
STB2-37312 |
STB2-37334 |
STB2-37500 |
STB2-37700 |
Strong-Bolt 2 Diameter (in.) | Drill Bit Size (in.) | Min. Fixture Hole (in.) | Wrench Size (in.) | Concrete Installation Torque (ft.-lbf.) Carbon Steel | Concrete Installation Torque (ft.-lbf.) Stainless Steel |
---|---|---|---|---|---|
1/4 | 1/4 | 5/16 | 7/16 | 4 | 4 |
3/8 | 3/8 | 7/16 | 9/16 | 30 | 30 |
1/2 | 1/2 | 9/16 | 3/4 | 60 | 65 |
5/8 | 5/8 | 11/16 | 15/16 | 90 | 80 |
3/4 | 3/4 | 7/8 | 1 1/8 | 150 | 150 |
1 | 1 | 1 1/8 | 1 1/2 | 230 | - |