Concrete Masonry Screws 20 Pack – Heavy-Duty Concrete & Brick Fixings

Concrete Masonry Screws 20 Pack are high‑performance, self‑tapping fixings designed for fast, secure anchoring into concrete, brick, blockwork and stone without the need for plugs. Ideal for both trade professionals and serious DIYers looking for reliable, clean and removable masonry fixings.

The Concrete Masonry Screws 20 Pack provides a convenient, ready‑to‑use solution for secure, permanent fixings into a wide range of masonry materials. Each screw is engineered with a high‑performance, self‑tapping thread that cuts into pre‑drilled holes in concrete, solid brick, blockwork and natural stone, delivering a strong mechanical hold without relying on wall plugs or resin.

Manufactured from hardened, heat‑treated steel, these concrete screws are designed to withstand the demanding loads and vibration often associated with masonry fixings. The deep, aggressive thread profile maximises surface contact within the base material, helping to reduce the risk of pull‑out under load when correctly installed.

The screws feature a countersunk head, allowing the fixing to sit flush with timber battens, metal brackets or other fixtures once fully driven. This is especially useful where a tidy, low‑profile finish is required, such as in interior fit‑outs, door framing, skirting boards, trunking, conduit, shelving and light‑duty framing.

Each pack contains 20 concrete masonry screws, providing excellent value for small projects or day‑to‑day site work. The product is suitable for use with standard impact drivers or combi drills fitted with the appropriate screwdriver bit, making installation fast and straightforward.

Typical Use Cases

• Fixing timber battens to concrete or brick for cladding, panelling or dry‑lining frameworks.
• Installing door frames, window frames and linings directly into masonry openings.
• Securing electrical trunking, conduit and cable trays to concrete soffits or block walls.
• Mounting shelving brackets, pipe clips, clamps and small brackets into brick or blockwork.
• Fixing light metal frameworks, angles and cleats to concrete surfaces.

Installation Tips

1. Select the drill bit size: Use a high‑quality masonry drill bit matched to the screw diameter (e.g. usually a 6 mm drill for a 5 mm concrete screw – always check manufacturer guidance on the packaging).
2. Drill the pilot hole: Drill perpendicular to the surface to the required depth (typically 10–15 mm deeper than the screw embedment length) using a hammer or rotary hammer drill.
3. Clean the hole: Blow out or vacuum dust from the hole to improve thread engagement and holding power.
4. Drive the screw: Position the fixture, insert the screw and drive it in using an impact driver or combi drill on a moderate setting. Do not overtighten.
5. Check the fixing: Ensure the head is flush or slightly recessed and that the fixture is firmly secured without cracking the substrate.

Note: For safety‑critical or heavily loaded applications, always follow site engineer recommendations and local building regulations. These screws are suitable for general, non‑structural fixings unless otherwise specified by a qualified professional.

Concrete Masonry Screws 20 Pack Features

• Self‑tapping masonry thread – cuts its own mating thread into pre‑drilled masonry for quick, reliable anchoring.
• Hardened steel construction – provides strength, durability and resistance to shear and torsional stresses during installation.
• Countersunk head design – sits flush with timber, metalwork or brackets for a neat, snag‑free finish.
• Plug‑free fixing – no plastic plugs or sleeves required, reducing components and speeding up installation.
• Compatible with most masonry substrates – suitable for concrete, solid brick, blockwork and dense stone when correctly pre‑drilled.
• High bite and pull‑out resistance – deep threads and sharp cutting edges help to secure strong mechanical retention.
• Trade‑friendly pack size – convenient 20‑pack ideal for small jobs, maintenance work and general repairs.

Technical Information

• Material: Hardened carbon steel (zinc‑plated or similar corrosion‑resistant finish – check product label for exact finish).
• Application substrates: Suitable for concrete, solid clay brick, blockwork and dense natural stone.
• Fixing method: Pre‑drilled hole using a masonry drill bit; screw installed using combi drill / impact driver.
• Recommended use: General construction, carpentry, M&E services, light structural fixings (non‑critical) and interior fit‑out.
• Quality control: Manufactured to consistent engineering tolerances under internal quality‑assurance processes.

Always consult a structural engineer or competent person for load‑bearing calculations or where fixings form part of a safety‑critical system (e.g. balustrades, guardrails, structural supports).

Frequently Asked Questions – Concrete Masonry Screws 20 Pack

1. What is the difference between a concrete masonry screw and a standard wood screw?

A concrete masonry screw is specially designed to cut and form a thread in pre‑drilled holes in concrete, brick and block. It uses a hardened steel body and an aggressive self‑tapping thread profile to grip masonry. A standard wood screw is made for timber and will not safely or reliably hold in masonry, even if you use a plug. For direct fixing into concrete or brick without plugs, concrete masonry screws are the correct choice.

2. Do I need wall plugs with these concrete masonry screws?

No. These are plug‑free masonry fixings. You only need to drill the correct size pilot hole in the concrete, brick or block, clean out the dust and then drive the screw directly into the substrate. The self‑tapping thread forms its own mating thread in the masonry.

3. What drill bit size should I use for these concrete screws?

Always match the masonry drill bit size to the screw diameter as recommended on the packaging. As a general guide, many 5 mm concrete screws are used with a 6 mm drill bit, but this varies by product design. Using the wrong drill size can lead to poor holding power or difficulty driving the screw, so refer to the specific guidance for your pack.

4. Are these concrete masonry screws suitable for outdoor use?

These screws are typically supplied with a protective coating (such as zinc plating) that offers a degree of corrosion resistance. For standard internal and sheltered applications, they are generally suitable. For external, exposed or highly corrosive environments (e.g. coastal areas, wet rooms), consider using a version specifically rated for exterior use (e.g. stainless steel or heavy‑duty corrosion‑resistant coating) and follow manufacturer guidance.

5. Can I remove and re‑use concrete masonry screws?

Yes, one advantage of concrete screws over some traditional anchors is that they can often be removed and re‑tightened. However, each time you remove and reinstall a screw, the holding capacity may be reduced slightly due to wear on the masonry thread. For critical fixings, it is best practice to use a new screw in a fresh hole where possible.

Common Uses / How to Use

Common Uses

• Fixing timber battens onto concrete or brick walls for cladding, panelling or insulation systems.
• Mounting door linings, casings and frames securely into masonry openings.
• Attaching electrical or plumbing clips, brackets and trunking to walls and ceilings.
• Installing handrail brackets, small shelves and hooks onto solid masonry substrates.
• Securing light metal angles, cleats and channel to concrete or blockwork in plant rooms and service areas.

How to Use – Step‑by‑Step Summary

1. Mark your fixing positions clearly on the masonry surface.
2. Drill a straight, clean pilot hole of the recommended diameter and depth using a masonry bit.
3. Remove all dust from the hole (blow, brush or vacuum).
4. Position your fixture (batten, bracket, frame, etc.) in place.
5. Insert the concrete masonry screw through the fixture and into the hole.
6. Drive the screw using a suitable power driver until the head is flush and the fixture is firmly secured.
7. Do not overtighten – stop once the fixture stops moving and the screw feels secure.