CONFAST 3/8 in x 3-3/4 in Wedge Anchor Zinc Plated - Concrete Fixes

In this review of the CONFAST 3/8 in x 3-3/4 in Wedge Anchor Zinc Plated (Box of 50), the bottom line is straightforward: this is a no-nonsense concrete anchor kit aimed at contractors, maintenance crews, and serious DIYers who need consistent, fast installations in dry concrete. The reviewer found the package useful because it ships complete with nuts and washers so installations are faster and less error-prone, and the zinc plating helps resist surface corrosion in dry settings. For anyone anchoring into solid concrete where simplicity and repeatable results matter, this anchor set is worth considering.

Key Features

• Zinc plated finish: Provides surface corrosion resistance in dry environments so anchors remain serviceable over time when not exposed to moisture.
• Packaged with nuts and washers: Includes the hardware needed for a complete installation, reducing trips back to the tool crib and speeding up work.
• Hole size equals anchor size: Uses a 3/8 in hole for straightforward, consistent drilling and reduced guesswork on bit selection.
• Wide range of sizes available: Ensures you can pick the correct fastener for different load needs and embedment depths on future jobs.
• Designed for concrete only: Optimized for solid concrete bases so performance is reliable when used as intended and not in block or brick.

Who It's For

This product is best for professionals and experienced DIYers anchoring fixtures, shelving, handrails, or equipment directly into solid concrete where a mechanical wedge anchor is the right choice. The box quantity of 50 suits job sites or repeat projects, and the included nuts and washers reduce logistics for crews.

Those who should look elsewhere include installers who need anchors rated for hollow block, brick, or wet/exterior conditions, or anyone requiring stainless steel corrosion resistance for marine or constantly damp environments. Also, if a fluted or chemical anchor is required for higher extraction performance, choose a different anchor type.

Pros & Cons

Pros

• Complete kit with nuts and washers accelerates installation and reduces missing-part delays.
• Zinc plated finish gives basic corrosion protection suitable for dry indoor concrete applications.
• Standard 3/8 in hole requirement simplifies drill bit selection and field workflow.
• Boxed quantity of 50 offers good value for contractors and maintenance teams.

Cons

• Not suitable for block, brick, or wet environments; zinc plating is not a substitute for stainless steel in corrosive settings.
• Some customers report inconsistent grip or occasional bending, so careful installation and correct embedment are important.

Specifications

Our Verdict

The CONFAST 3/8 in x 3-3/4 in Wedge Anchor box delivers sensible value for anchoring into solid concrete where a mechanical wedge anchor is appropriate. It is best for installers who need a complete kit and straightforward installation steps; the zinc plating and included hardware make it practical for dry indoor projects. For damp locations or hollow base materials, choose a different anchor type.

Frequently Asked Questions

Can these anchors be used in block or brick?
No. They are designed for use in concrete only and should not be used in block or brick.

What drill bit is required?
Drill a 3/8 in hole using a carbide tipped bit in a hammer drill to meet recommended installation practice.

Are these anchors corrosion resistant?
The anchors are zinc plated for surface corrosion protection in dry environments but are not suitable for wet or marine conditions.