Direct answer: for 3/4″ wedge anchors, these five products offer strong, code-friendly performance for concrete and CMU anchoring. They vary by installation ease, corrosion protection, and pack size, so choose based on project scale, exposure, and whether you need quick install or maximal holding power. The top picks below are suited for machinery mounts, structural supports, sill plates, and general concrete fastening.
Buyer-friendly quick reference:
| Product | Best For | Package Size | |
|---|---|---|---|
| Red Head TruBolt 3/4 x 5-1/2″ | Heavy-duty machinery and structural supports | 10 pcs | ICC-ES ESR-2251 approved; easy installation |
| SURGE 3/4″ x 5-1/2″ (Box of 20) | General purpose concrete anchoring | 20 pcs | Rust protection; straightforward drilling |
| SURGE 3/4″ x 8-1/2″ (Box of 10) | Longer reach fixtures | 10 pcs | Ideal for deeper embedment |
| CONFAST 3/4″ x 5-1/2″ | Durable dry environments | 20 pcs | Includes hardware; single-dimension drilling guidance |
| Horiznext 3/4″ x 6-1/4″ | Standard concrete anchoring needs | 10 pcs | Clear sizing; zinc-plated steel |
Red Head TruBolt 3/4 x 5-1/2″ Heavy-Duty Wedge Concrete Anchors
The RedHead TruBolt is a heavy-duty wedge anchor designed for maximum strength in uncracked concrete. It is ICC-ES ESR-2251 approved, aligning with building codes for structural applications and heavy machinery installations. Best for machinery mounting, structural supports, and sill plate anchors where long-term reliability matters. A noted benefit is straightforward installation. Potential limitation is availability in smaller packs if you need fewer anchors for a tiny project.
3/4″ x 5-1/2″ Wedge Anchors (Box of 20) by SURGE BUILDING PRODUCTS
These heavy-duty wedge anchors are zinc-plated carbon steel, offering rust protection for dry indoor environments. They are designed for dependable hold in concrete, cement, and fully grouted CMU. They pair with a simple one-size drilling approach, which helps ensure clean, quick installs. Choose these if you want a robust, everyday-use option with clear compatibility for standard concrete work. Limitation: suited for dry interiors; not specified for exterior exposure.
SURGE 3/4″ x 8-1/2″ Wedge Anchors (Box of 10)
Longer 8-1/2″ anchors provide deeper embedment, which can boost holding power for heavy equipment and taller fixtures. The zinc-plated carbon steel construction yields corrosion resistance in appropriate environments. Best for projects where deeper anchor engagement is needed. Limitation: longer length requires adequate embedment depth and clearance in the installation site.
CONFAST 3/4″ x 5-1/2″ Wedge Anchor Zinc Plated
CONFAST anchors are built for dry environments and emphasize durability for concrete-only applications. They come with the nut and washer required for installation, which can simplify the project setup. Choose this when you want a complete hardware-included package and steady performance in standard concrete. Caution: not intended for brick, block, or grout applications.
HROMIGRY 3/4″ x 5-1/2″ Concrete Anchors (10 Pack)
These carbon-steel wedge anchors are zinc-plated to resist rust, offering solid performance for mounting or structural anchorage in solid concrete or cement. They’re sold in a 10-pack, which makes them suitable for mid-sized projects. Best for standard concrete installations where a reliable, ready-to-use solution is needed. Limitation: not recommended for block or brick bases.
HROMIGRY 3/4″ x 5-1/2″ Concrete Anchors (20 Pack)
This 20-pack mirrors the standard 5-1/2″ length with zinc-plated carbon steel for reliable dry-environment anchoring. It suits larger projects or ongoing maintenance work where stock-up capacity matters. Best for multiple fixtures or long-term use. Do not use in block or brick base material.
Buying Guide
What matters most when selecting 3/4″ wedge anchors:
- Embedment depth and fixture weight: deeper embeds boost holding power for heavy loads.
- Material and corrosion protection: zinc plating improves rust resistance in dry or indoor settings; consider coatings for exterior exposure.
- Concrete type and environment: CMU and fully grouted blocks may call for different wedge lengths or engagement requirements.
- Pack size and installation ease: larger packs reduce restocking needs; hardware-included options save time on site.
- Code and certification: ICC-ES approval or similar certifications help ensure code compliance for structural applications.
Practical comparisons
- Best for heavy machinery mounting: Red Head TruBolt (ICC-ES approved, strong hold).
- Better for quick, dry-indoor installations: SURGE and CONFAST options with straightforward drilling guidance.
- Choose this if you need longer reach: SURGE 8-1/2″ or HROMIGRY 7″ options.
- Avoid this if base material is brick or block: most wedge anchors shown here are designed for solid concrete or CMU, not brick.
Installation tips
Follow manufacturer drilling and setting instructions precisely. Use the recommended drill bit diameter matching the anchor size. Ensure the hole is clean and free of debris before inserting the anchor. Allow appropriate curing or seating time if required by the specific product. For outdoor or moist environments, select anchors with the best corrosion protection.
FAQ
- What is a wedge anchor used for in concrete? – It provides a secure, expanding hold in concrete or CMU by pressing the anchor against the hole walls during tightening.
- Are 3/4″ wedge anchors suitable for exterior use? – They can be, if they are zinc-plated or coated for corrosion resistance and the installation is designed for outdoor exposure.
- Do these anchors require special tools? – A standard hammer drill and the correct drill bit for the anchor diameter are typically sufficient.
- Can I use wedge anchors in hollow block? – Generally not ideal; verify product specifications and consider alternatives designed for CMU or solid blocks.
- Is there a difference between 5-1/2″ and 8-1/2″ wedge anchors? – Yes, embedment depth differs; longer anchors provide more support for heavier loads but need sufficient space.
- Do these sets include nuts and washers? – Some models include hardware; check each listing to confirm included components.