The Simpson Strong-Bolt 2 5/8 in. x 6 in. Mechanically Galvanized Wedge Anchor is a wedge-type expansion anchor engineered by Simpson for high-load-resisting performance in exterior applications. Built from mechanically galvanized carbon steel, it delivers the corrosion resistance needed for outdoor concrete and masonry installations while maintaining the same dual undercutting embossments on each clip segment found in the zinc-electroplated version. Tested in uncracked concrete per AC193 and in uncracked masonry per AC01, this anchor is a proven choice for structural fastening in demanding conditions.

Key Features

• Mechanically galvanized carbon steel construction - provides corrosion resistance suited for exterior applications, making it a dependable alternative to standard zinc-electroplated anchors in outdoor environments.
• Dual undercutting embossments on each clip segment - increases mechanical interlock with the base material for enhanced load resistance under real-world structural demands.
• Chamfered top design - prevents mushrooming during installation, helping the anchor seat cleanly and reducing the risk of installation error.
• Suitable for horizontal, vertical, and overhead applications - gives contractors flexibility to use a single anchor type across multiple installation orientations on the same job site.
• Standard ANSI fractional sizing with a 5/8 in. drill bit requirement - fits standard fixtures and installs with common drill bit and tool sizes, minimizing the need for specialty equipment.
• Tested per ACI355.2 and AC193 - independently verified performance gives engineers and inspectors a documented basis for specifying this anchor in code-sensitive projects.
• Installs with a 15/16 in. wrench - compatible with standard hand tools, keeping installation straightforward and efficient in the field.

Why This Product

• Purpose-built for exterior structural anchoring - the mechanically galvanized finish is specifically suited where exposure to the elements makes standard zinc-electroplated anchors insufficient, giving buyers a reliable solution for outdoor concrete and masonry fastening.
• Verified performance across concrete and masonry substrates - independent testing in uncracked concrete per AC193 and uncracked masonry per AC01 means this anchor meets recognized industry standards, reducing risk for contractors and specifying engineers alike.
• Versatile installation without additional hardware - compatibility with horizontal, vertical, and overhead orientations, combined with standard ANSI sizing and common tool requirements, means one anchor covers a wide range of job site conditions without specialized equipment.
• Installation-friendly design details - the chamfered top guards against mushrooming during driving, and the standard 5/8 in. drill bit sizing keeps the installation process consistent and predictable, reducing costly rework in the field.

Specifications

• Model Number: STB2-62600MGF20
• Size: 5/8 in. x 6 in.
• Drill Bit Diameter: 5/8 in.
• Thread Length: 3-15/16 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
• Finish/Coating: Mechanically Galvanized
• Packaging: Packs of 20 and Cartons of 80

Approved Applications

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

Frequently Asked Questions

What type of base material is the Strong-Bolt 2 Mechanically Galvanized anchor designed for?

This anchor is tested and suitable for use in uncracked concrete in accordance with AC193 and in uncracked masonry in accordance with AC01, making it appropriate for a range of structural base materials in exterior settings.

What drill bit diameter is required for installation?

A 5/8 in. diameter drill bit is required to prepare the hole for this anchor.

Why is a mechanically galvanized finish specified for this anchor?

The mechanically galvanized finish provides corrosion resistance that makes this anchor suitable for exterior applications where exposure to the elements is a concern, unlike standard zinc-electroplated versions intended for interior use.

Can this anchor be installed in orientations other than vertical?

Yes. The STB2-62600MGF20 anchor is suitable for horizontal, vertical, and overhead applications, providing installation flexibility across a variety of structural connection scenarios.

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