CONFAST 3/8 in x 2-1/4 in Stainless Steel Wedge Anchor - Corrosion

In this review of the CONFAST 3/8 in x 2-1/4 in Stainless Steel Wedge Anchor, the bottom line is clear: this is a straightforward, heavy-duty concrete anchor for installers who need reliable corrosion resistance in wet or submerged environments. The reviewer found it best for contractors, HVAC installers mounting mini splits, and homeowners attaching structures like gazebos to concrete decks. The package includes nuts and washers for a complete install, and the stainless construction means long-term durability where standard zinc anchors would fail.

Key Features

• 304 Stainless Steel Construction: Resists rust and corrosion so the anchor performs well in wet or submerged conditions and maintains strength over time.
• Correct Hole Size: The anchor uses a 3/8 in hole equal to the anchor diameter, which simplifies layout and drilling during installation.
• Packaged Complete: Each anchor comes with nuts and washers, allowing fast, complete installation without sourcing additional hardware.
• Standard Length and Embedment: The 2-1/4 in length with 1-1/2 in minimum embedment provides predictable holding in concrete when installed per instructions.
• ANSI-Compatible Drill Bit Use: Designed to be installed with a carbide tipped bit in a hammer drill, which helps achieve correct hole diameter and reliable expansion.

Who It's For

These wedge anchors are aimed at professionals and experienced DIYers who regularly fasten items to concrete and need corrosion-resistant hardware. HVAC technicians mounting mini split units, contractors securing outdoor structures, and any installer working in wet locations will appreciate the 304 stainless material and included nuts and washers.

Less experienced users who expect guidance for use in block or brick should look elsewhere; these anchors are designed for concrete only and must be installed with the specified 3/8 in carbide bit and hammer drill. If you need anchors for hollow masonry or variable base materials, a different anchor type is required.

Pros & Cons

Pros

• High corrosion resistance from 304 stainless steel makes these suitable for wet and submerged use.
• Includes nuts and washers so each anchor is ready to install out of the box.
• Simple sizing where hole diameter equals anchor diameter reduces installation confusion.
• Customers report solid anchoring ability and good value for money on heavier applications.

Cons

• Intended for concrete only, so it is not suitable for block or brick base materials.
• A few users reported missing parts in rare cases, so verify box contents before job start.

Specifications

Brand	CONFAST
Material	304 Stainless Steel
Anchor Diameter	3/8 in
Anchor Length	2-1/4 in
Thread Length	1 in
Minimum Embedment	1-1/2 in
Package Quantity	50 per box (includes nuts and washers)

Our Verdict

The CONFAST 3/8 in x 2-1/4 in Stainless Steel Wedge Anchor is a dependable choice for anyone needing corrosion-resistant anchors for concrete. It is good value when securing outdoor equipment or structures in wet conditions, provided you follow the concrete-only installation instructions and confirm box contents before starting the job.

Frequently Asked Questions

Can these anchors be used in wet or submerged locations?
Yes. They are made from 304 stainless steel and are designed for wet environments.

What drill bit size is required?
Drill a 3/8 in hole using a carbide tipped bit in a hammer drill to meet the required hole diameter.

Can these be used in block or brick?
No. These wedge anchors are designed for concrete only and should not be used in block or brick base materials.