Simpson Strong-Tie Strong-Bolt 2 STB2-50512P1 Wedge Anchor, 1/2 in Dia, 5-1/2 in L, Carbon Steel, Zinc

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.