The Simpson Strong-Bolt 2 Wedge Anchor, 3/4 in. x 4-3/4 in., Type 316 Stainless Steel is a wedge-type expansion anchor engineered for high-performance structural anchoring in demanding conditions, including seismic and high-wind environments. Dual undercutting embossments on each clip segment enable secondary expansion should a crack form and intersect the anchor location, significantly increasing the anchor's ability to carry load if the hole expands. Fabricated from Type 316 stainless steel throughout - anchor body, nut, washer, and clip - this wedge anchor delivers long-lasting corrosion resistance across a wide variety of service environments, making it a reliable choice for both interior and exterior concrete anchoring applications.

Key Features

• Chamfered top designed to prevent mushrooming during installation - protects the anchor head during driving so threads remain clean and the nut seats properly every time.
• Qualified for static and seismic loading conditions covering seismic design categories A through F - gives engineers and contractors the documentation they need for code-compliant installations in virtually any seismic zone.
• Dual undercutting embossments on each clip segment enable secondary expansion - maintains load-carrying capacity even if a crack forms and intersects the anchor hole, adding a critical safety margin in cracked concrete.
• Suitable for horizontal, vertical, and overhead applications - provides installation flexibility so a single anchor specification covers multiple orientations on the same project.
• Standard (ANSI) fractional sizes fit standard fixtures and install with common drill bit and tool sizes - no specialty tooling required; installs with a 3/4 in. drill bit and a 1-1/8 in. wrench, keeping setup time and equipment costs low.
• Tested per ACI355.2 and AC193 - independently verified performance gives specifiers confidence that load values are backed by recognized industry test standards.
• Made from Type 316 stainless steel - offers superior resistance to corrosion and harsh service environments, extending the service life of the connection in moisture-exposed, coastal, or chemically aggressive conditions.

Why This Product

• Built for the most demanding structural conditions - the Strong-Bolt 2 is qualified for seismic design categories A through F and high-wind structural connections, making it one of the few wedge anchors suited for full-code compliance across the entire range of seismic exposure levels.
• Secondary expansion technology protects load capacity in cracked concrete - unlike standard wedge anchors, the dual undercutting embossments on each clip segment allow the anchor to re-engage if the surrounding concrete cracks, reducing the risk of connection failure in real-world conditions.
• Type 316 stainless steel construction throughout resists corrosion for the long term - with every component - body, nut, washer, and clip - made from Type 316 stainless steel, this anchor is well-suited for service environments where carbon-steel or zinc-plated anchors would degrade prematurely.
• Installs with standard tools and fits common fixtures without modification - ANSI fractional sizing and compatibility with a standard 3/4 in. drill bit and 1-1/8 in. wrench mean faster installation, fewer callbacks, and no need for specialty equipment on the job site.

Specifications

• Model Number: STB2-754346SSR10
• Size: 3/4 in. x 4-3/4 in.
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Diameter: 3/4 in.
• Length: 4-3/4 in.
• Thread Length: 2-1/2 in.
• Component Material - Anchor Body: Type 316 Stainless Steel
• Component Material - Nut: Type 316 Stainless Steel
• Component Material - Washer: Type 316 Stainless Steel
• Component Material - Clip: Type 316 Stainless Steel
• Installation - Drill Bit Size: 3/4 in.
• Installation - Wrench Size: 1-1/8 in.
• Packaging: Packs of 10 and Cartons of 40

Approved Applications

• Cracked and uncracked concrete anchoring applications
• Seismic design categories A through F
• High-wind structural connections
• Horizontal installations
• Vertical installations
• Overhead installations
• Applications requiring long-term corrosion resistance in demanding service environments

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