CONFAST 1/2 in x 4-1/4 in Stainless Steel Wedge Anchor - Wet

In this review the CONFAST 1/2 in x 4-1/4 in Stainless Steel Wedge Anchor is judged on durability and installation ease for concrete fastening. The bottom line: this anchor is best for contractors or homeowners who need a reliable, corrosion-resistant fastener for wet or submerged concrete work. Tested against typical installation steps, the anchor delivers consistent expansion hold and long-term corrosion resistance because it is made from 304 stainless steel, and it ships ready with nuts and washers for a fast, complete installation.

Key Features

• 304 stainless steel construction: Provides corrosion resistance that makes the anchor suitable for wet or submerged concrete applications without rusting over time.
• Complete hardware packaging: Each anchor is packaged with nuts and washers so installers can complete the job immediately without sourcing extra parts.
• Hole size equals anchor size: The 1/2 in hole requirement simplifies installation planning and ensures the anchor expands correctly for predictable performance.
• Thread length: With 2-1/2 in of thread, there is ample engagement for bolting fixtures flush while preserving required embedment depth.
• Clear embedment spec: Minimum embedment of 2-1/4 in keeps the anchor within recommended concrete depth for secure holding power.

Who It's For

The CONFAST stainless wedge anchor is aimed at professionals and serious DIYers who install fixtures to concrete in wet environments, such as mounting mini split units, installing handrails, or securing outdoor structures. Its stainless construction and included nuts and washers make it convenient for jobs where corrosion resistance and immediate use are priorities.

Those who should look elsewhere include installers working with hollow block, brick, or other nonconcrete base materials, since this anchor is designed for concrete only. If a shorter thread or a smaller diameter is required, choose a different size from the range instead of this 1/2 in x 4-1/4 in model.

Pros & Cons

Pros

• Excellent corrosion resistance from 304 stainless steel, suitable for wet and submerged environments.
• Packaged with nuts and washers for quick, complete installations without extra parts.
• Simple installation using a 1/2 in drill bit and hammer drill, making layout and preparation straightforward.

Cons

• Intended for concrete only and should not be used in block or brick, limiting base material options.

Specifications

Anchor diameter	1/2 in
Anchor length	4-1/4 in
Thread length	2-1/2 in
Minimum embedment	2-1/4 in
Hole diameter/bit	1/2 in carbide tipped bit in hammer drill
Material	304 stainless steel
Packaging	25 per box with nuts and washers

Our Verdict

The CONFAST 1/2 in x 4-1/4 in Stainless Steel Wedge Anchor is a practical choice for anyone fastening to concrete in wet or corrosive conditions; it offers reliable holding power, clear installation specs, and the convenience of included nuts and washers. For concrete-only projects that require corrosion resistance and quick installation, it represents solid value.

Frequently Asked Questions

Can this anchor be used in wet or submerged applications?
Yes. It is made from 304 stainless steel and is designed for wet environments and will resist rust.

What hole size do I need to drill?
Drill a 1/2 in hole using a carbide tipped bit in a hammer drill, as the hole diameter matches the anchor size.

Can I use these anchors in block or brick?
No. The anchor is designed specifically for concrete and should not be used in block or brick base materials.