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TIN344204ZP
300/Z (3442-139) Bzp 3.0 X 21Mm Medium Link Chain
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300/Z (3442-139) Bzp 3.0 X 21Mm Medium Link Chain
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Delivery Information
| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
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£2.65
Incl. VAT
£2.21
Excl. VAT
Incl. VAT
Excl. VAT
Incl. VAT
Excl. VAT
Price is for/per metre
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Description
Reliable Hardware for Daily Security and Utility Tasks
Sourcing robust, dependable hardware for light security, hanging fixtures, and utility tasks across commercial premises or domestic projects can often prove frustrating. Many standard chains on the market either suffer from brittle welds, inconsistent link geometry, or poor surface finishes that begin to oxidise at the first hint of workshop moisture. When you need to suspend signage, tether gates, secure retail displays, or demarcate pedestrian walkways, you require a chain that provides consistent tensile performance alongside clean handling and dependable corrosion protection.
The 300/Z (3442-139) Bzp 3.0 X 21Mm Medium Link Chain offers a practical, versatile answer to these everyday challenges. Crafted from quality steel and finished in bright zinc plating, this welded medium link profile balances strength, flexibility, and neat aesthetic appeal. Whether cut to tailored lengths for internal workshop hoists, used as a robust barrier support, or deployed for retail security tethers, this chain delivers the steadfast structural integrity that trade professionals expect from Doorfit.
Stage by Stage Deployment Pipeline
Stage 1 Material Sourcing and Forming
Each link starts with selected steel rod drawn to a consistent 3.0mm diameter. The steel undergoes automated cold forming into smooth, uniform 21mm internal length loops. This careful manufacturing process eliminates sharp burrs and preserves structural density throughout the continuous chain run.
Stage 2 Precision Link Welding
Following mechanical forming, every individual seam is electric resistance welded. This fusion process unifies the joint completely, ensuring that the link resists splitting or opening under routine static tensile loads and everyday operational movement.
Stage 3 Protective Zinc Electroplating
The raw welded chain undergoes thorough pickling before entering a specialized electroplating bath. A durable bright zinc plating layer bonds across all surfaces. This provides excellent resistance against humidity, light weather exposure, and indoor atmospheric corrosion.
Stage 4 On Site Installation and Securing
The generous 21mm link internal dimension readily accepts standard shackles, quick repair links, hooks, and padlocks. Fitters can rapidly cut the chain to size on site and anchor it securely across diverse commercial fixtures or gates without binding.
Key Features and Everyday Advantages
- Durable Medium Link Geometry The medium pitch design provides greater flexibility than short link alternatives while preserving strength, allowing the chain to wrap neatly around bollards, timber posts, and metal pipes.
- Bright Zinc Plated Finish The electroplated zinc layer gives the metal a professional, clean silver lustre that looks attractive in retail display environments while protecting the base steel from oxidation.
- Electric Welded Joins Robust fusion welds on every link eliminate mechanical separation under steady loads, guaranteeing peace of mind when securing access points or plant machinery.
- Standard Shackle Compatibility The 21mm pitch ensures that standard hardware fittings, including snap hooks, screw pin shackles, and security padlocks, slide through effortlessly.
- Effortless Modification The 3.0mm wire gauge is straightforward to trim using manual bolt cutters, enabling rapid bespoke tailoring during on site installations.
Detailed Specifications
| Specification | Technical Value | Practical Details |
|---|---|---|
| Product Code | 300/Z (3442-139) | Original Doorfit warehouse identification reference |
| Material | Mild Steel | Formed core steel offering reliable ductile resilience |
| Finish | Bright Zinc Plated (BZP) | Smooth protective electroplating against moisture and rust |
| Nominal Wire Diameter | 3.0mm | Consistent gauge suitable for cutting with hand tools |
| Internal Link Length | 21.0mm | Medium pitch opening accommodating connecting hardware |
| Link Construction | Side Welded | Fully fused seams for sustained operational security |
| Primary Applications | General Utility & Light Security | Ideal for hanging signs, light barriers, and gates |
Important Operational Safety Notice
Please note that commercial grade medium link chain is intended strictly for light security, retail display, perimeter demarcation, and general utility purposes. This hardware is not rated or certified for overhead lifting, load slinging, or safety critical fall protection applications. Always consult certified rigging specialists when planning overhead load suspension systems.
Need Advice on Commercial Chain and Hardware?
Whether you are outfitting a full industrial facility, sourcing tailored hardware lengths, or selecting compatible shackles and fixings, our experienced technical team is ready to assist you.
Contact Our TeamSpecification
| Material | Mild Steel |
|---|---|
| Finish | Zinc |