The Simpson Strong-Bolt 2 5/8 in. x 7 in. Mechanically Galvanized Wedge Anchor is a wedge-type expansion anchor built for high-load structural connections in exterior concrete and masonry applications. Manufactured from mechanically galvanized carbon steel, this anchor delivers dependable corrosion resistance in demanding outdoor environments. Tested in uncracked concrete per AC193 and in uncracked masonry per AC01, it is engineered to perform reliably in horizontal, vertical, and overhead installations where consistent holding strength is critical.

Key Features

• Mechanically galvanized carbon steel construction - provides enhanced corrosion resistance suited for exterior structural anchoring applications where moisture and environmental exposure are ongoing concerns.
• Dual undercutting embossments on each clip segment - the same proven clip design as the zinc-electroplated version, delivering superior expansion performance and reliable holding strength in concrete and masonry.
• Chamfered top design - prevents mushrooming of the anchor head during installation, helping ensure a clean, secure set every time and reducing the risk of installation damage.
• Suitable for horizontal, vertical, and overhead applications - gives installers versatility across a wide range of structural anchoring orientations without needing a different anchor type.
• Standard ANSI fractional sizing at 5/8 in. diameter - fits standard fixtures and installs with a common 5/8 in. drill bit and 15/16 in. wrench, keeping tool requirements straightforward and accessible.
• Tested per ACI355.2 and AC193 - documented performance data supports use in code-required applications, giving engineers and contractors confidence in load calculations and compliance.

Why This Product

• Purpose-built for exterior high-load anchoring - the mechanically galvanized finish addresses the corrosion demands of outdoor structural applications, making this a dependable choice when a standard zinc-electroplated anchor is not sufficient for the environment.
• Versatile installation orientations in concrete and masonry - tested and approved for use in uncracked concrete and uncracked masonry across horizontal, vertical, and overhead positions, reducing the need for multiple anchor specifications on a single job.
• Drop-in compatibility with standard tooling - the 5/8 in. drill bit requirement and 15/16 in. wrench size align with common trade tools, so contractors can install this wedge anchor without sourcing specialty equipment.
• Proven clip design shared with the electroplated version - the dual undercutting embossments on each clip segment carry over from Simpson's established Strong-Bolt 2 platform, so the mechanically galvanized variant offers the same mechanical performance in a finish suited for exterior exposure.

Specifications

• Model Number: STB2-62700MGF20
• Size: 5/8 in. x 7 in.
• Drill Bit Diameter: 5/8 in.
• Thread Length: 4-15/16 in.
• Coating / Finish: Mechanically Galvanized
• 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
• Packaging: Packs of 20 and Cartons of 80

Approved Applications

• Exterior structural anchoring 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 use?

The anchor body features a mechanically galvanized finish, which provides enhanced corrosion resistance compared to standard finishes, making it well suited for exterior applications where moisture and environmental exposure are concerns.

What size hole should be drilled for this anchor?

A 5/8 in. drill bit diameter is required to install this anchor. Using the correct bit size ensures proper fit and expansion performance in the base material.

Is this anchor tested and code-compliant for concrete and masonry?

Yes. The STB2-62700MGF20 anchor has been tested in uncracked concrete in accordance with AC193 and in uncracked masonry in accordance with AC01, providing documented performance data for structural applications.

Can this anchor be installed in orientations other than vertical?

Yes. The Strong-Bolt 2 mechanically galvanized anchor is suitable for horizontal, vertical, and overhead installations, offering flexibility across a wide range of structural connection scenarios.

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