The Simpson Strong-Bolt 2 1/2 in. x 10 in. Mechanically Galvanized Wedge Anchor is a wedge-type expansion anchor engineered by Simpson for structural connections that demand both high-load resistance and reliable corrosion protection in exterior environments. Built from mechanically galvanized carbon steel, this anchor features dual undercutting embossments on each clip segment to maximize holding strength, and its standard ANSI fractional sizing ensures straightforward compatibility with common fixtures and installation tooling. Tested in uncracked concrete per AC193 and in uncracked masonry per AC01, it is a dependable choice for horizontal, vertical, and overhead anchor installations where performance and durability cannot be compromised.

Key Features

• Chamfered top - prevents mushrooming during installation, protecting threads and keeping the anchor properly seated for a clean, secure fit.
• Suitable for horizontal, vertical, and overhead applications - gives contractors and builders installation flexibility across a wide range of structural scenarios without needing a different fastener.
• Standard ANSI fractional sizing - fits common fixtures and installs with a standard 1/2 in. drill bit and 3/4 in. wrench, so no specialty tooling is required.
• Mechanically galvanized carbon steel construction - delivers enhanced corrosion resistance compared to standard electroplated finishes, making this anchor well suited for exterior structural applications.
• Dual undercutting embossments on each clip segment - increases mechanical interlock within the base material for high-load-resisting performance in demanding connections.
• Tested per ACI355.2 and AC193 in uncracked concrete, and per AC01 in uncracked masonry - provides the verified load data engineers and inspectors need for code-compliant structural design.

Why This Product

• Built for exterior, high-load structural work - the mechanically galvanized finish combined with the Strong-Bolt 2 wedge anchor design directly addresses the dual demands of corrosion resistance and high holding capacity in outdoor concrete and masonry applications.
• Versatile installation in any orientation - rated for horizontal, vertical, and overhead use, this expansion anchor adapts to complex jobsite conditions without requiring multiple anchor products.
• Backed by rigorous third-party testing - compliance with ACI355.2, AC193, and AC01 means structural engineers have access to reliable load values, simplifying specification and project approval.
• Installer-friendly design - the chamfered top prevents thread damage during driving, and ANSI fractional sizing means the anchor works with the 1/2 in. bits and standard wrenches already on the job, reducing setup time and potential for installation errors.

Specifications

• Size: 1/2 in. x 10 in.
• MPN: STB2-50100MGF20
• Brand: Simpson Strong-Tie
• Diameter: 1/2 in.
• Length: 10 in.
• Thread Length: 6 in.
• Material: Carbon Steel
• Coating: Mechanically Galvanized
• 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
• Installation Drill Bit: 1/2 in.
• Wrench Size: 3/4 in.
• Standards: Tested per ACI355.2 and AC193
• Packaging: Packs of 20 and Cartons of 40

Approved Applications

• Exterior structural connections requiring high-load resistance
• Horizontal anchor installations
• Vertical anchor installations
• Overhead anchor installations
• Uncracked concrete (tested in accordance with AC193)
• Uncracked masonry (tested in accordance with AC01)

Frequently Asked Questions

What size drill bit and wrench are required to install this anchor?

This anchor installs with a 1/2 in. drill bit and requires a 3/4 in. wrench size for proper installation.

Is this anchor suitable for outdoor and exterior applications?

Yes. The mechanically galvanized carbon steel construction makes this anchor well suited for exterior applications where corrosion resistance and high-load performance are required.

Can this anchor be used in orientations other than vertical?

Yes. The Strong-Bolt 2 is suitable for horizontal, vertical, and overhead applications, providing installation flexibility across a wide range of structural scenarios.

What standards has this anchor been tested to?

This anchor has been tested per ACI355.2 and AC193 for uncracked concrete performance, and also tested in uncracked masonry in accordance with AC01.

Note: Product dimensions and/or thread length may differ from picture. Please refer to the specifications listed above for accurate product details.