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Brand: UNIFIX

Unifix Twinthread Wood Screws

£0.67 £6.37Price range: £0.56£0.67 through £5.31£6.37 Excl. VATIncl. VAT

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Twinthread Design: Dual-thread pattern for enhanced grip and reduced loosening over time, ensuring the longevity of your projects.
Zinc-Plated Finish: Corrosion-resistant coating that protects against rust and increases the lifespan of the screws, making them ideal for outdoor use.
Sharp Point: Facilitates easy and quick penetration into wood, reducing splitting and making installation smoother.
Variety of Sizes: Available in multiple sizes to accommodate different project requirements, offering versatility and convenience.
High-Quality Steel: Made from durable steel to provide maximum strength and reliability, ensuring a secure hold in any woodworking application.

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Unifix Twinthread Wood Screws: The Ultimate Fastening Solution for Durable and Reliable Woodwork

 

Unifix Twinthread Wood Screws are engineered to provide superior fastening solutions for all your woodworking needs.

These screws are meticulously designed with a unique twinthread pattern that ensures optimal grip and stability, making them the perfect choice for both professional carpenters and DIY enthusiasts.

Crafted from high-grade steel, these screws boast a zinc-plated finish that offers excellent corrosion resistance, ensuring that your projects remain intact and rust-free for years to come.

The sharp point and twinthread design facilitate easy penetration into a variety of wood types, reducing the risk of splitting and enhancing the overall structural integrity.

Available in a range of sizes, Unifix Twinthread Wood Screws are versatile and suitable for numerous applications, including furniture assembly, cabinetry, decking, and general woodwork.

The screws’ design not only guarantees a secure hold but also simplifies the installation process, making your woodworking projects quicker and more efficient.

Whether you’re working with softwoods or hardwoods, indoors or outdoors, Unifix Twinthread Wood Screws provide a reliable and durable fastening solution that stands the test of time.

Choose Unifix for quality, performance, and peace of mind in every screw.

 

Unifix Twinthread Wood Screws Benefits:

– Enhanced Grip: The twinthread design ensures a stronger hold, preventing loosening over time.
– Versatile Use: Ideal for a wide range of wood types and applications, from softwoods to hardwoods.
– Easy Installation: Sharp point and twinthread design allow for effortless insertion and reduced splitting.
– Corrosion Resistant: Zinc-plated finish provides excellent resistance to rust, extending the lifespan of your projects.
– Cost-Effective: High-quality screws offered at a competitive price, delivering value for money.

 

Unifix Twinthread Wood Screws Questions and Answers People Ask:

Q1: What makes Unifix Twinthread Wood Screws different from regular wood screws?
A1: Unifix Twinthread Wood Screws feature a unique twinthread design that provides a stronger grip and prevents loosening over time, unlike regular wood screws which may not offer the same level of stability.

Q2: Can these screws be used for outdoor projects?
A2: Yes, the zinc-plated finish of Unifix Twinthread Wood Screws offers excellent corrosion resistance, making them suitable for both indoor and outdoor applications.

Q3: Are these screws compatible with hardwoods?
A3: Absolutely, the sharp point and robust twinthread design of Unifix Twinthread Wood Screws make them ideal for use with both softwoods and hardwoods, offering reliable penetration and hold.

Q4: Do I need to pre-drill holes before using these screws?
A4: While pre-drilling is not always necessary due to the sharp point of the screws, it is recommended for hardwoods to ensure precise and easy installation.

Q5: How do I choose the right size of Unifix Twinthread Wood Screws for my project?
A5: The size of the screw should be determined by the thickness of the materials you are fastening. As a general rule, the screw should be at least twice the thickness of the material being secured.

☁ Cloud Rating Approx. Salt Spray Hours* Description
☀ 1 Cloud < 100 hrs Indoor / fully sheltered use
🌤 2 Clouds ~100 – 500 hrs Indoor + sheltered outdoor
🌦 3 Clouds ~500 – 1,000 hrs General outdoor use with specialist coating
🌧 4 Clouds ~1,000 + hrs A2 stainless steel – exterior use inland
⛈ 5 Clouds 1,000 + hrs / “marine grade” A4 stainless – coastal / high-exposure use

*Approximate values based on typical corrosion testing standards (salt spray testing to first rust).

 

Marc’s Cloud Rating – Always First 4 Fixings Corrosion Resistance Guide

Choosing the right screw or fixing is all about matching it to the environment — especially when it comes to

corrosion resistance.

That’s why at Always First 4 Fixings, we’ve created a quick and simple way to help you pick the perfect product for any job:

☁️ Marc’s Cloud Rating

Each fixing on our site is given a Cloud Rating (☀️ to ⛈️) — your easy guide to how well it stands up to the weather. The more clouds, the more corrosion-resistant the fixing!  

☀️ 1 Cloud – Indoor / Covered Outdoor Use

Designed for: Dry indoor environments or outdoor areas completely covered from the elements. Perfect for internal projects, garages, lofts, or sheltered spaces where moisture exposure is minimal.

🌤️ 2 Clouds – Indoor / Sheltered Outdoor Use

Designed for: Indoor use or external areas with some protection from direct rain or weather. Ideal for porches, under decking, or covered outdoor structures where occasional moisture may occur.

🌦️ 3 Clouds – General Outdoor Use

Designed for: Both indoor and outdoor use. Typically features specialist corrosion-resistant coatings and undergoes 500–1000 hours salt spray testing. Great for garden furniture, fencing, sheds, or exposed outdoor areas not constantly hit by sea air.

🌧️ 4 Clouds – A2 Stainless Steel

Designed for: Tough external environments. Made from A2 stainless steel, these screws are durable and weather-resistant — ideal for outdoor projects more than 10 miles inland. Reliable for all general external applications and completely fine for indoor use too.

⛈️ 5 Clouds – A4 Marine Grade Stainless Steel

Designed for: The harshest, most demanding environments. Made from A4 stainless steel (marine grade), these fixings offer maximum corrosion resistance — perfect for coastal areas, marine use, or anywhere exposed to salt air and constant moisture. The “big daddy” of weatherproof fixings — unbeatable outdoors, worry-free indoors.  

How to Use Marc’s Cloud Rating

You’ll find the Cloud Rating (☀️–⛈️) shown on each product across our website. Simply match the rating to your project’s environment and know exactly how your fixing will perform — rain or shine! Always First 4 Fixings – Helping You Choose with Confidence.
Size

4 x 1/2" (200), 4 x 3/4" (200), 4 x 5/8" (200), 4 x 1" (200), 6 x 1/2" (200), 6 x 5/8" (200), 6 x 3/4" (200), 6 x 1" (200), 6 x 1 1/4" (200), 6 x 1 1/2" (200), 6 x 1 3/4" (200), 6 x 2" (200), 7 x 5/8" (200), 7 x 3/4" (200), 7 x 1" (200), 7 x 1 1/4" (200), 7 x 1 1/2" (200), 7 x 1 3/4" (200), 8 x 1/2" (200), 8 x 5/8" (200), 8 x 3/4" (200), 8 x 1" (200), 8 x 1 1/4" (200), 8 x 1 1/2" (200), 8 x 1 3/4" (200), 8 x 2" (200), 8 x 2 1/4" (200), 8 x 2 1/2" (200), 8 x 2 3/4" (200), 8 x 3" (100), 8 x 3 1/2" (100), 10 x 3/4" (200), 10 x 1" (100), 10 x 1 1/4" (100), 10 x 1 1/2" (200), 10 x 1 3/4" (200), 10 x 2" (200), 10 x 2 1/4" (100), 10 x 2 1/2" (100), 10 x 3" (100), 10 x 3 1/2" (100), 10 x 4" (100), 12 x 1" (200), 12 x 1 1/4" (200), 12 x 1 1/2" (200), 12 x 2" (100), 12 x 2 1/4" (100), 12 x 2 1/2" (100), 12 x 3" (100), 12 x 3 1/2" (100), 12 x 4" (100), 10 x 1" (200), 10 x 1 1/4" (200)

Shipping Policy

Always First 4 Fixings Courier Delivery ServiceAt Always First 4 Fixings, we know that your projects rely on fast, dependable delivery. That’s why we offer flexible UK shipping options designed for tradespeople and businesses: Fast Dispatch: Orders are processed and dispatched within 24 hours on working days. Free shipping on all orders over £60 (UK mainland). Express options available to keep your jobs moving. Click & Collect: Order online and pick up at your convenience (if applicable). Reliable Couriers: We use trusted UK carriers to ensure your fixings and fasteners arrive on time. You’ll receive tracking details as soon as your order leaves our warehouse. Delivery times may vary depending on location and availability, but we work hard to get your order to you as quickly as possible.  

Returns Policy

We want you to be fully confident when ordering from Always First 4 Fixings. If your supplies aren’t right for any reason, we make returns straightforward: Return unused and undamaged items in original packaging within 30 days. Don’t forget your proof of purchase or order confirmation. Once we receive your return, we’ll process your refund or exchange promptly. Certain items may have specific exclusions or conditions—please read our detailed returns policy or contact us if you have questions. Our team is always here to help ensure you get exactly what you need for the job.

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