Whether you're a joiner, builder, DIYer, or window installer, securing materials properly is essential for structural integrity and longevity. Traditional fixings like Hammer Fixings and Frame Fixings have been widely used, but many professionals are now switching to a more efficient and reliable alternative — Concrete Frame Screws.

Also known as Multi-Fix Concrete Screws by TIMco, these advanced fixings provide a strong hold in concrete, brick, stone, block, and wood. Unlike expansion anchors, they do not require rawl plugs, making installation faster, easier, and more cost-effective.

At Next Day Fixings, we offer a full range of Concrete Frame Screws with nationwide next-day delivery. If you order before 3 PM (Monday to Friday), we’ll dispatch it the same day for next-working-day delivery.

Let’s explore why these screws are revolutionizing the industry and how you can use them effectively in your next project.

A Concrete Frame Screw is a countersunk, self-tapping anchor designed for securing window frames, door frames, battens, and various other materials to masonry.

Unlike traditional rawl plug and screw combinations, these screws:

• Cut directly into the masonry rather than expanding inside a hole.
• Lock into place securely without putting pressure on the surrounding material.
• Can be removed and reinserted multiple times without losing grip strength.

✅ No need for rawl plugs – saving you time and money.
✅ Faster installation – drill a hole, insert the screw, and you're done!
✅ Safer for close-edge fixing – no expansion means no risk of cracking.
✅ Reusable – if you make a mistake, just remove and reinstall the screw.

Concrete Frame Screws are designed to speed up installations and enhance reliability —making them ideal for both professionals and DIYers.

At Next Day Fixings, we supply four different types of Multi-Fix Concrete Screws. Below, we’ll break down the details of each type, including their head types, finishes, corrosion resistance, and ideal applications.

For general-purpose fixing in concrete, brick, block, stone, and wood, the yellow passivated Multi-Fix Concrete Screw is a top choice for many tradespeople. Its fully threaded design provides a secure and strong hold, making it ideal for fixing window and door frames. The screw’s serrated V-threads help cut into masonry effortlessly, reducing the amount of torque needed during installation. Since it doesn’t require a rawl plug, it significantly speeds up the fixing process. However, its zinc and yellow passivated finish means it is best suited for indoor use in dry, low-humidity environments, as prolonged exposure to moisture may lead to corrosion.

• Designed for light-duty anchoring in concrete, brick, stone, block, and wood.
• Zinc & yellow passivated coating provides mild corrosion resistance.
• Serrated V-threads for optimal insertion and strong grip.
• Fully threaded for maximum holding strength.
• TX30 (Torx) drive recess reduces driver wear and prevents cam-out.

• Lengths range from 40mm to 200mm.
• The most popular sizes are 100mm & 120mm.

✔ Easy to install – no need for rawl plugs.

✔ Excellent for securing window and door frames.

✔ Wide range of lengths available for various applications.

❌ Not suitable for outdoor or humid environments due to limited corrosion resistance.

For stronger corrosion resistance and durability, the zinc-plated Multi-Fix Concrete Screw is an upgraded alternative to the yellow passivated version. It is ideal for indoor applications where increased moisture protection is needed but isn’t exposed to extreme weather conditions. The high-low thread design ensures easy insertion into concrete, brick, and block while maintaining a tight hold. Like all Multi-Fix Concrete Screws, it eliminates the need for expansion fixings, making installation faster and more efficient. Additionally, this screw meets BS 7671 fire safety standards, making it compliant with building regulations for securing wiring systems.

• Zinc-plated finish provides better corrosion resistance than yellow passivated screws.
• Same V-thread design for quick and secure fixing in masonry surfaces.
• BS 7671 standard compliance – non-flammable and safe for wiring installations.
• It has a strong anchoring system with a fully threaded shank.

• Available lengths: 80mm to 150mm .

✔ More durable than yellow passivated screws.

✔ Ideal for longer-term indoor installations.

✔ Meets fire safety standards.

❌ Not as corrosion-resistant as Silver Organic screws, making it unsuitable for high-humidity areas or outdoor use.

If you need a highly durable and corrosion-resistant fixing for exterior applications, the Silver Organic Multi-Fix Concrete Screw is the best option. These screws are coated with a 500-hour salt spray-resistant finish, making them ideal for outdoor environments, coastal regions, or humid conditions. The serrated V-thread design ensures a strong grip in masonry, while the self-tapping feature eliminates the need for rawl plugs, making installation quick and easy. This is the go-to fixing solution if you’re working on external window frames, door installations, or outdoor construction.

• Silver Organic coating resists 500 hours of salt spray testing.
• Highly corrosion-resistant, making it perfect for wet environments.
• Strong V-threads for secure anchoring in brick, concrete, and stone.
• Countersunk head design for a neat, flush finish.

• Available in: 80mm, 100mm, and 120mm.

✔ Highly durable and corrosion-resistant – great for outdoor use.

✔ Best choice for exterior fixings in damp environments.

✔ Provides long-lasting performance without rusting.

❌ Slightly more expensive than standard zinc-plated screws.

For applications requiring greater surface contact and stronger clamping force, the Multi-Fix Concrete Screw with a Pan Head is the ideal choice. Unlike the countersunk version, which sits flush with the material, the pan head design provides a larger bearing surface, making it excellent for fixing brackets, battens, and metal fittings to masonry. The zinc-plated finish offers medium corrosion resistance, making it suitable for indoor applications requiring additional grip strength.

• The pan head design provides stronger surface contact for improved clamping.
• The zinc-plated finish offers medium corrosion resistance.
• Ideal for use in fixing metal brackets, battens, and fittings.
• Self-tapping V-thread ensures a secure hold in concrete, brick, and stone.

• Available in lengths from 80mm to 150mm.

✔ Offers better clamping force than countersunk screws.

✔ Great for applications where a larger bearing surface is needed.

❌ Does not sit flush, which may not be ideal for all installations.

When using Concrete Frame Screws for window frames, door installations, or decorative projects, aesthetics matter just as much as strength. To ensure a professional and polished look, Concrete Frame Screw Cover Caps are the ideal solution. These caps neatly conceal screw heads, protecting them from dust, dirt, and minor impact while enhancing the overall appearance of the installation.

At Next Day Fixings, we offer cover caps in three colors to seamlessly match different surfaces:

✔ Mahogany is perfect for dark wood and traditional window frames.
✔ Light Oak – Ideal for light-colored timber and neutral finishes.
✔ White is best for uPVC windows and modern installations.

Each bag contains 100 caps, making them a cost-effective way to achieve a neat and professional finish. Simple to use—just snap them over the screw head, and you're done!

🔹 Order yours today along with your Concrete Frame Screws for next-day delivery across the UK! 🚀

1️⃣ Mark Your Drill Points:

• Measure and mark where you need to place the screws.

2️⃣ Drill a Pilot Hole:

• Use a 6mm or 6.5mm drill bit, depending on the material's hardness.
• Drill at least 10mm deeper than the screw length.

3️⃣ Clean Out the Hole:

• Blow out dust to ensure a secure grip.

4️⃣ Insert the Screw:

• Use a TX30 driver bit for proper torque.
• Drive the screw in slowly to prevent snapping.

🔹 Pro Tip: If using in wood, drill a smaller pilot hole to avoid splitting.

🏆 Wide range of fixings & hardware.

🚀 Next-day delivery nationwide.

💷 Bulk discounts available.

✅ High-quality TIMco products.

⭐ James R., Window Installer:
"I’ve switched to Concrete Frame Screws for all my window installations. They hold incredibly well, and Next Day Fixings always delivers on time!"

⭐ Lisa T., DIY Enthusiast:
"I was hesitant to try Multi-Fix Screws, but they worked perfectly. Much easier than messing with rawl plugs!"

When choosing a Concrete Frame Screw, it’s essential to consider the environment, application, and level of corrosion resistance required. Whether you’re working indoors or outdoors, fixing window frames, battens, or metal brackets, Next Day Fixings has the perfect screw for the job.

Browse our full range of Concrete Frame Screws and enjoy next-day delivery across the UK. Order before 3 PM (Monday to Friday) for same-day dispatch!

🔗 Visit Next Day Fixings and shop now! 🚀