Simpson Strong-Tie Strong-Bolt 2 Wedge Anchor, Mechanically Galvanized - 1/2" x 2-3/4" is a heavy-duty wedge-type expansion anchor engineered for high-load-resisting applications in exterior environments. Manufactured by Simpson Strong-Tie from carbon steel with a mechanically galvanized finish, this anchor delivers reliable performance in both concrete and masonry substrates where corrosion resistance and structural integrity are critical.

Key Features

• Mechanically galvanized finish on the anchor body provides enhanced corrosion resistance for exterior applications
• Dual undercutting embossments on each clip segment for improved holding strength and mechanical interlock
• Suitable for horizontal, vertical, and overhead installations, offering versatile placement flexibility
• Tested in uncracked concrete in accordance with AC193
• Also tested in uncracked masonry in accordance with AC01
• Wedge-type expansion design delivers high-load resistance in demanding structural applications

Specifications

• Model No.: STB2-50234MG
• Coating/Material: Mechanically Galvanized / Carbon Steel
• Size (in.): 1/2 x 2-3/4
• Drill Bit Dia. (in.): 1/2
• Thread Length (in.): 1-1/4
• Component Material, Anchor Body: Mechanically Galvanized
• Component Material, Nut: Carbon Steel ASTM A 563, Grade A
• Component Material, Washer: Carbon Steel ASTM F844
• Component Material, Clip: Carbon Steel ASTM A 568
• Packaging: Packs of 25 and Cartons of 125

Approved Applications

• Exterior concrete anchoring applications requiring high load resistance
• Uncracked concrete installations - tested per AC193
• Uncracked masonry installations - tested per AC01
• Horizontal anchor installations
• Vertical anchor installations
• Overhead anchor installations

Frequently Asked Questions

What type of finish does this anchor have, and why does it matter?

The anchor body features a mechanically galvanized finish over carbon steel. This coating provides enhanced corrosion resistance compared to standard zinc-electroplated finishes, making it particularly well suited for exterior applications where exposure to moisture and the elements is a concern.

What size hole should be drilled when installing this anchor?

A 1/2-inch diameter drill bit should be used to prepare the installation hole, matching the anchor's 1/2-inch diameter for a proper fit and optimal load performance.

Has this anchor been independently tested for performance in concrete and masonry?

Yes. The STB2-MG anchor has been tested in uncracked concrete in accordance with AC193 and in uncracked masonry in accordance with AC01, providing verified performance data for structural applications.

Can this anchor be installed in orientations other than vertical?

Yes. This anchor is suitable for horizontal, vertical, and overhead applications, giving installers flexibility across a wide range of structural configurations and project requirements.

Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.