CONFAST 3/4ft x 6-1/4ft Stainless Steel Wedge Anchor - Durable Wet-Use

Our review of the CONFAST 3/4' x 6-1/4' Stainless Steel Wedge Anchor finds it best suited for contractors, HVAC installers and DIYers who need a durable anchor for concrete in wet environments. The single biggest reason to buy is its 304 stainless steel construction, which resists rust in submerged or consistently damp conditions and gives confidence for outdoor decks, gazebo installations and mini split mounting. Installation is straightforward because the hole diameter equals the anchor size and each box includes nuts and washers for a complete fastening solution.

Key Features

• 304 stainless steel construction: Provides long term corrosion resistance in wet or submerged environments so anchors stay reliable over time.
• Packaged with nuts and washers: Includes the hardware needed for a fast, complete installation without additional trips to the hardware store.
• Hole size equals anchor size: Simplifies installation by matching the required drill bit to the anchor diameter for consistent results.
• Wide range of sizes available: Ensures you can select the proper fastener length and diameter for different concrete applications and load needs.
• Designed for concrete only: Optimized performance when installed in solid concrete, avoiding reduced capacity in brick or block where it should not be used.

Who It's For

This anchor is ideal for professionals and experienced DIYers who regularly fasten equipment to concrete surfaces and need corrosion resistance, such as mounting mini split condensers, attaching gazebos to concrete decks, or securing outdoor hardware in coastal or damp sites. Its stainless construction is especially relevant where galvanized anchors would degrade.

Those working with block, brick, or hollow masonry should look elsewhere, since the wedge anchor is explicitly designed for concrete only. If you need specialized anchors for hollow or lightweight base materials, select a product engineered for those substrates.

Pros & Cons

Pros

• High quality 304 stainless steel offers excellent corrosion resistance for wet installations.
• Comes with nuts and washers for quick, complete installations right out of the box.
• Simple installation logic where the hole diameter equals the anchor size reduces drilling errors.
• Works well for heavy duty applications like HVAC mounts and outdoor structures when installed in concrete.

Cons

• Not suitable for block or brick applications, limiting use to concrete only.
• Requires a hammer drill and correct carbide bit for proper installation, which may not be in every homeowner toolbox.

Specifications

Anchor diameter	3/4' in
Overall length	6-1/4' in
Thread length	3-3/4' in
Minimum embedment	3-1/4' in
Hole diameter / bit	3/4' in carbide tipped bit (ANSI standard)
Material	304 stainless steel
Package quantity	5 per box with nuts and washers

Our Verdict

The CONFAST 3/4' x 6-1/4' Stainless Steel Wedge Anchor is a reliable choice for anyone fastening into solid concrete who needs durable corrosion resistance and a complete hardware package. Its stainless construction and included nuts and washers offer good value for outdoor and wet-site installations, while the simplicity of matching hole and anchor size speeds installation for pros and capable DIYers.

Frequently Asked Questions

Can this anchor be used in wet or submerged locations?
Yes, the anchor is made from 304 stainless steel and is designed for use in wet environments.

What base material is appropriate for this anchor?
This wedge anchor is designed for use in concrete only and should not be used in block or brick base material.

What drill bit size is required?
You must drill a 3/4' in hole using a carbide tipped bit that meets ANSI standards and a hammer drill for correct installation.