CONFAST 1/4 in x 5 in Hex Head Concrete Screw Anchor - Durable Masonry

In this review the CONFAST 1/4 in x 5 in Hex Head Concrete Screw Anchor is examined for tradespeople and experienced DIYers who need a reliable masonry fastener. The single biggest reason to consider these screws is the included carbide drill bit in each box, which ensures the correct 3/16 in hole and improves holding values while reducing additional cost and time. The reviewer found the fasteners work well in concrete, block and brick and appreciated the ease of installation provided by the included bit and the self-tapping thread form.

Key Features

• Bit Included: Each box includes a properly sized 3/16 in carbide bit so users get consistent hole diameter for better holding and fewer wasted anchors.
• Slotted Hex Head: The hex washer head accepts a 5/16 in nut driver for fast, controllable driving and a secure seating on the surface.
• Self-Tapping: The screw taps its own threads into concrete, block or brick so no separate anchor sleeve is required.
• Diamond Point: The diamond point design reduces driving effort and helps the screw start cleanly in masonry holes.
• Carbon Steel Construction: The steel body gives solid strength for anchoring fixtures where a robust fastener is needed in dry environments.

Who It's For

These concrete screws are best for professional contractors and serious DIYers who install shelving, handrails, electrical boxes or fixtures into concrete, cinder block or brick and who value bundle convenience from a box that includes a matched drill bit. Users who already have carbide bits may still prefer the box for the consistent fit and value for money.

Buyers who need stainless corrosion resistance for outdoor or wet environments should look elsewhere, since these anchors are carbon steel and intended for dry conditions. Also, if frequent countersinking or flush mounting is required, verify head style and seating depth before use.

Pros & Cons

Pros

• Included bit reduces extra tool purchases and helps maintain correct 3/16 in hole diameter for better hold.
• Hex washer head and 5/16 in nut driver compatibility speed installation and provide positive torque transfer.
• Self-tapping thread and diamond point lower installation time by eliminating separate anchor sleeves.
• Good value for a 100-per-box pack for larger jobs where many anchors are required.

Cons

• Made from carbon steel and rated for dry environments only, so it is not suited for long-term outdoor or wet use without additional coating or protection.
• Some customers report occasional head breakage under heavy stress, so care is needed to avoid overtorque during installation.

Specifications

Brand	CONFAST
Diameter	1/4 in
Length	5 in
Hole/Bit Diameter	3/16 in carbide bit (included)
Driver Required	5/16 in nut driver
Thread Length	1-1/4 in
Material / Finish	Carbon steel, blue

Our Verdict

The CONFAST 1/4 in x 5 in Hex Head Concrete Screw Anchor is a practical choice for indoor masonry work where consistent hole size and reliable anchoring matter; the included carbide bit and self-tapping design make installation quicker and reduce wasted anchors, offering strong value for contractors and DIYers alike. Those needing long-term outdoor corrosion resistance should select a stainless option instead.

Frequently Asked Questions

What size hole do I need?
Drill a 3/16 in hole with a carbide tipped bit as supplied in the box to match the anchor.

Do I need a special driver?
Use a 5/16 in nut driver to drive the slotted hex washer head for best torque control.

Can these be used outdoors?
These anchors are carbon steel and designed for dry environments, so they are not recommended for prolonged outdoor or wet exposure without additional corrosion protection.