A silver-colored jack nut screw anchor designed for use in hollow uPVC frames, with visible threads and a split design for installation.
Jack Nut Screw Anchor with Machine Screw – ideal for fastening into thin, hollow, or brittle materials like sheet metal, plastic, or fiberglass. Provides a strong, reusable thread.
Close-up of a plastic upvc profile with a jack nut and machine screw on a grey background
4 Jack Nut anchors product image
Four metallic jack nuts on a grey background
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A silver-colored jack nut screw anchor designed for use in hollow uPVC frames, with visible threads and a split design for installation.Jack Nut Screw Anchor with Machine Screw – ideal for fastening into thin, hollow, or brittle materials like sheet metal, plastic, or fiberglass. Provides a strong, reusable thread.Close-up of a plastic upvc profile with a jack nut and machine screw on a grey background4 Jack Nut anchors product imageFour metallic jack nuts on a grey background

Jack Nut Screw Anchor With Machine Screw

Home SecureSKU: HS4321
Price:
£0.60

Description

Jack Nut Screw Anchor - When Extra Secure Fixing is Required

When you need a reliable fixing in thin materials or hollow panels, the Home Secure™ Jack Nut provides unbeatable grip and versatility.
This clever jack nut anchor expands behind the surface as the screw tightens, creating a strong, vibration-resistant hold — even in areas where standard screws or bolts can’t reach.

Ideal for uPVC, metal, composite, and sheet materials, the jack nut offers a secure, professional finish for both trade and DIY applications.

⚙️ Key Features

  • 🔩 Strong Anchoring Power: Expanding body design creates a solid hold behind thin or hollow materials.

  • 🧱 Versatile Use: Perfect for uPVC panels, metal sheets, composite materials, and light industrial fixings.

  • 🔧 Complete Set: Includes both the jack nut anchor and matching machine screw for easy installation.

  • 🪛 Vibration Resistant: Maintains grip under movement and stress — ideal for mechanical or structural use.

  • 💪 High-Strength Material: Manufactured from durable zinc-plated steel for long-lasting corrosion resistance.

  • 🧰 Easy to Fit: Simple tightening process — no special tools required.

🏠 Ideal For

  • Installing fixings in uPVC doors and window frames

  • Securing hardware to metal or composite panels

  • Automotive, industrial, or sheet-metal repairs

  • Anywhere a standard screw cannot anchor properly

📏 Technical Details

  • Brand: Home Secure™

  • Type: Jack Nut Screw Anchor with Machine Screw

  • Material: Zinc-plated steel

  • Finish: Bright zinc coating for corrosion resistance

  • Installation: Manual tightening or power driver (no special tools needed)

  • Use: Thin panels, uPVC, metal, composites, plastics

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Frequently Asked Questions

🔩 A jack nut is a type of expanding nut used to create a strong fixing in thin or hollow materials. As the screw tightens, the nut collapses and grips behind the surface, forming a secure anchor point.

When a uPVC frame has no steel re-enforcing there is nothing for a standard screw to grip on to. To check if your frame has steel re-enforcing you will need to drill into it and feel the tension or lack of. 

🧱 Jack nuts are suitable for uPVC, sheet metal, composites, fibreglass, and other hollow or lightweight materials.

When installing our jack nuts we recommend using a 9.5mm drill bit. Once you have drilled a hole into the frame using this bit, you can then tap the jack nut into place. Place the product you are installing onto the frame and attach by drilling the machine screw supplied into the jack nut through the fixing hole of the product. The jack nut will then split apart creating a secure fixing inside the uPVC frame. 

🪛 No — simply tighten the supplied machine screw with a screwdriver or driver bit until the anchor expands securely.

About the Brand - Home Secure

HomeSecure is a UK-based home security specialist dedicated to providing high-quality, reliable, and affordable security products designed to protect homes and families. With years of industry experience, HomeSecure focuses on delivering hardware that meets the practical needs of homeowners while maintaining professional-grade performance.

From anti-snap door cylinders and precision-engineered hardware to reinforcement solutions and security accessories, every HomeSecure product is developed with durability, ease of installation, and long-term protection in mind. Our range is carefully tested and selected to meet trusted security standards—offering strong defence against common break-in methods and everyday wear.

At HomeSecure, we put customer safety, product reliability, and excellent value at the core of everything we do. Whether you're upgrading a lock, improving door strength, or enhancing overall home protection, HomeSecure products deliver dependable security you can trust.

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