CONFAST 5/8 in x 7 in Stainless Steel Wedge Anchor - Corrosion

In this review of the CONFAST 5/8 in x 7 in Stainless Steel Wedge Anchor, the bottom line is simple: it is a durable, corrosion-resistant anchor made for concrete work where long-term exposure to moisture is expected. The reviewer recommends it for professionals and DIYers who need a reliable fastener that resists rust and installs with minimal additional parts. The inclusion of nuts and washers and the clear hole-size equals anchor-size rule make installation straightforward, which is the single biggest reason to buy.

Key Features

• 304 stainless steel construction: Provides reliable corrosion resistance so the anchor can be used in wet or submerged environments without worrying about rust.
• Complete kit packaging: Each anchor comes packaged with nuts and washers so installations are faster and require fewer trips to the hardware store.
• Hole size matches anchor size: A 5/8 in hole requirement keeps installation simple and reduces guesswork when preparing concrete.
• Long thread length: The 4 in of thread allows adjustments and secure tightening for a range of mounting thicknesses.
• Designed for concrete only: Optimized performance when used in solid concrete bases, giving predictable anchoring strength.

Who It's For

The CONFAST wedge anchor is best for contractors, fabricators, and homeowners installing heavy fixtures into concrete where exposure to moisture is expected, such as mounting mini split brackets, securing gazebo posts, or anchoring equipment to concrete decks. Its stainless construction and included hardware make it a strong choice when long-term durability and convenience matter.

It is not intended for use in hollow block or brick base material; those requiring anchors for masonry other than solid concrete should look for anchors specifically rated for those substrates or consult engineering guidance for alternative fasteners.

Pros & Cons

Pros

• Stainless 304 construction offers long-term corrosion resistance in wet environments.
• Packaged with nuts and washers for a fast, complete installation process.
• Simple installation rule where the hole diameter equals the anchor diameter reduces drilling errors.
• Good thread length to accommodate varying fixture thicknesses and secure clamping.

Cons

• Designed for concrete only, so it is not suitable for block or brick installations.
• Requires a hammer drill and proper carbide bit to meet recommended hole preparation standards.

Specifications

Anchor diameter	5/8 in
Anchor length	7 in
Thread length	4 in
Material	304 stainless steel
Hole diameter / bit	5/8 in carbide tipped bit (ANSI standard)
Minimum embedment	2-3/4 in
Packaging	20 per box with nuts and washers

Our Verdict

The CONFAST 5/8 in x 7 in wedge anchor is a practical, value-minded choice for anyone fastening into concrete where corrosion resistance matters. With 304 stainless steel, included nuts and washers, and straightforward installation rules, it suits both professional jobs and robust DIY projects, provided the base material is solid concrete.

Frequently Asked Questions

Can this anchor be used in wet or submerged conditions?
Yes. The anchor is made from 304 stainless steel and is designed for use in wet environments and will not rust under typical exposure.

What drill bit should be used?
Drill a 5/8 in hole using a carbide tipped bit that meets ANSI standards and use a hammer drill for proper hole preparation.

Can this anchor be used in block or brick?
No. This wedge anchor is intended for use in solid concrete only and should not be used in block or brick base material.