The Simpson Strong-Tie 3/4 in. x 7 in. Strong-Bolt 2 Wedge Anchor, Mechanically Galvanized is a heavy-duty wedge-type expansion anchor engineered for high-load-resisting applications in exterior environments. Manufactured from carbon steel with a mechanically galvanized finish on the anchor body, this anchor delivers reliable holding strength in both concrete and masonry substrates while providing enhanced corrosion resistance suited for outdoor and exposed-environment installations. Whether the application calls for horizontal, vertical, or overhead fastening, this anchor is tested and approved for use in uncracked concrete per AC193 and uncracked masonry per AC01, making it a dependable choice for demanding structural connections.

Key Features

• Mechanically galvanized finish on the anchor body - provides corrosion resistance beyond standard zinc-electroplated anchors, keeping exterior installations protected over time
• Dual undercutting embossments on each clip segment - increases mechanical interlock with the concrete or masonry substrate for superior holding performance under load
• Tested in uncracked concrete per AC193 - gives engineers and contractors confidence that published load values are backed by standardized third-party testing protocols
• Tested in uncracked masonry per AC01 - extends the anchor's verified use beyond concrete to masonry substrates, reducing the need for multiple anchor products on a single job
• Approved for horizontal, vertical, and overhead installations - offers installation flexibility across a wide range of structural configurations without requiring a different anchor for each orientation
• Carbon steel hardware components including ASTM A 563 Grade A nut and ASTM F844 washer - ensures the full assembly meets recognized material standards, supporting consistent and predictable performance

Why This Product

• Built for exterior high-load applications - the mechanically galvanized anchor body addresses a common failure point in outdoor anchoring by offering corrosion resistance that standard electroplated anchors cannot match, making it well-suited for exposed structural connections
• Dual-substrate testing gives installers verified performance data - with certifications covering both uncracked concrete and uncracked masonry, this wedge anchor reduces guesswork on mixed-material projects where substrate types may vary
• All-orientation approval simplifies job-site planning - because the Strong-Bolt 2 is rated for horizontal, vertical, and overhead use, a single anchor selection covers multiple fastening scenarios, streamlining procurement and reducing the risk of using an anchor outside its approved range
• Standardized hardware materials support engineering and inspection requirements - with the nut, washer, and clip each conforming to recognized ASTM designations, this anchor is easier to specify, approve, and verify on projects where material documentation is required

Specifications

• Model No.: STB2-75700MGF10
• Size (in.): 3/4 in. x 7 in.
• Drill Bit Diameter (in.): 3/4 in.
• Thread Length (in.): 4-11/16 in.
• Anchor Body Material: Mechanically Galvanized Carbon Steel
• Nut Material: Carbon Steel ASTM A 563, Grade A
• Washer Material: Carbon Steel ASTM F844
• Clip Material: Carbon Steel ASTM A 568
• Anchor Type: Wedge-type expansion anchor
• Finish/Coating: Mechanically Galvanized
• Packaging: Packs of 10 and Cartons of 40

Approved Applications

• Exterior applications requiring high-load resistance
• Horizontal installations in uncracked concrete and uncracked masonry
• Vertical installations in uncracked concrete and uncracked masonry
• Overhead installations in uncracked concrete and uncracked masonry

Frequently Asked Questions

What makes the Strong-Bolt 2 suitable for exterior applications?

The anchor body features a mechanically galvanized finish on carbon steel, providing corrosion resistance that makes it appropriate for use in exterior environments where standard zinc-electroplated anchors may not suffice.

What drill bit size is required to install this anchor?

A 3/4-inch diameter drill bit is required for proper installation of the STB2-75700MGF10 wedge anchor.

Has this anchor been tested for use in masonry as well as concrete?

Yes. The STB2-75700MGF10 anchor is tested in uncracked concrete in accordance with AC193 and also in uncracked masonry in accordance with AC01, making it versatile for both substrate types.

What is the difference between this anchor and the zinc-electroplated version?

Both versions share the same dual undercutting embossments on each clip segment for high-load performance. The primary difference is the finish: this version uses a mechanically galvanized coating on the anchor body, making it better suited for exterior applications.

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