Overview
The mechanical expansion anchor is a durable, cost-effective fastening solution for permanent installations in solid concrete and grout-filled masonry. Manufactured from 304 stainless steel with zinc plating, this wedge-sleeve anchor provides reliable holding power while resisting corrosion in outdoor and wet environments. A single-unit quantity makes it ideal for spot repairs, retrofit applications, or mixed-quantity projects where bulk purchases are not required.
Key Features
- 304 Stainless Steel Construction – Resists atmospheric corrosion and rust in wet, salt-spray, and chemical environments
- Zinc Plating – Additional corrosion protection for extended service life
- Wedge-Sleeve Design – Non-bottom-bearing expansion provides uniform holding capacity that increases as tension is applied
- One-Piece Clip – Ensures consistent expansion and secure fastening without complex assembly
- Simple Installation – Utilizes standard hole sizing equal to anchor diameter; no specialized tools required
- Solid Concrete Compatible – Suitable for uncracked concrete and grout-filled masonry units
Technical Specifications
- Diameter: 3/8″
- Material: 304 Stainless Steel with Zinc Plating
- Anchor Type: Wedge-Sleeve Expansion
- Mounting Surface: Solid Concrete, Grout-Filled Masonry
- Installation Method: Hammer-Set (Wedge-Driven)
- Unit Quantity: 1 pc
- Corrosion Classification: ASTM A193 Stainless Steel
- Industry Standard: ANSI/IES RP-12
Typical Applications
- Construction & Structural: Hanging threaded rod, cable trays, conduits, and HVAC ducts from concrete decks
- Building Hardware: Securing equipment mounts, brackets, and ancillary systems to concrete
- Retrofit & Repair: Post-installation fastening in existing concrete without re-pouring
- Industrial Facilities: Chemical processing, food handling, and marine environments where corrosion resistance is critical
- Infrastructure: Permanent anchoring in parking structures, bridges, and utility installations
Compatibility & Replacements
Compatible With
- Solid concrete and uncracked concrete structures
- Grout-filled concrete masonry (CMU)
- Concrete-over-steel-deck applications
- 3/8″ diameter threaded rod and bolts
- Standard concrete fastening hardware and setting tools
Replaces / Drop-In Replacement For
- Generic unbranded 3/8″ stainless steel wedge anchors
- Simpson Strong-Tie comparable 3/8″ models
- Hilti comparable wedge anchor equivalents
- Verify compatibility with your existing fastening system before ordering
Works With
- Standard hammer and wedge-setting tools
- 3/8″ UNC and UNF threaded fasteners
- Concrete drilling bits (carbide-tipped, ANSI B212.15)
- Washers and lock washers for bolt assembly
