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.

 

STB2-62100
STB2-62412
STB2-62500
STB2-62600
STB2-62700
STB2-62812

 

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 -

Simpson Strong-Bolt® 2 Wedge Anchor - 5/8"