Heavy Duty Zips

6 products

Heavy duty motorbike zip in black by YKK.  Picture shows black zip with 8mm wide silver teeth

Welcome ZipMart customers! You're in exactly the right place — Thread & Trimmings is the official home of ZipMart, and all your favourite heavy duty zips are fully stocked here and ready for immediate dispatch.

Heavy duty zips engineered for rugged outerwear, leather jackets, workwear coats, canvas bags, marine and upholstery projects. Thick moulded plastic and reinforced metal teeth designed to withstand maximum tension and daily wear. In stock and dispatched same day if ordered before 1pm via fully tracked UK postal networks.

  • Close-up of a heavy-duty metal open-end zip by YKK, showing the teeth and slider against a black background. Woman's hands at sewing machine stitching a metal zip down the centre front of a black leather jacket

    YKK Heavy Duty Metal Open End Zip No.8 Chain Black Motorbike Jacket

    52 in stock Express UK Shipping Available  

    Genuine YKK No.8 heavy duty metal open end zip in black — built for motorbike jackets, leather outerwear, and demanding workwear applications. Brand: YKK (genuine) Material: Metal teeth, woven polyester tape Chain Size: No.8 — 8mm teeth width when closed, 35mm tape width Type: Open end — separates fully at the base Slider: Heavy duty autolock metal slider with chunky puller Colour: Black throughout (teeth, tape and slider) Lengths available: 14", 16", 18", 20", 22", 24", 26", 28", 30" Sold: Individually as a single complete zip HS Code: 9607110000 Country of Origin: China The YKK No.8 is one of the most robust zip specifications in the YKK range — a go-to choice for makers and repairers working with motorbike jackets, heavy leather coats, aviator jackets, and outdoor canvas. The 8mm metal teeth and 35mm woven tape deliver the strength and presence that lighter zips simply can't match, while the autolock slider holds firmly in position when released. Supplied in black throughout for a clean, consistent finish on dark outerwear and workwear. Length is measured from the bottom box to the top stop and does not include the additional tape extending beyond the stops. This zip can be shortened from the top if a bespoke length is needed. How to Order: Select your required length from the dropdown above. Choose your quantity and add to basket. Each zip is sold individually as a single complete open-end zip. The lifestyle image shows a zip repair being carried out on a traditional leather motorbike jacket — the style of jacket this zip is ideally suited to. Lifestyle image is for illustrative purposes only. Matching thread for sewing leather and heavy-duty outerwear is available in the shop.

    52 in stock Express UK Shipping Available  

    £4.64 - £5.81

  • A collection of YKK Vislon heavy duty plastic open end zips in various colors. YKK Vislon HEAVY DUTY Plastic Open End Zip 8mm Teeth 24" / 26" / 28" / 30" / 32" - ThreadandTrimmings

    YKK Vislon No.8 Heavy Duty Open End Coat Zip 14 Colours 24 26 28 30 32 Inch

    1 review

    159 in stock Express UK Shipping Available  

    A genuine YKK Vislon No.8 open-end coat zip with chunky moulded plastic teeth — available in 14 colours and five long lengths, made in the UK. Brand: YKK Range: Vislon Material: Moulded plastic teeth, 35mm woven tape Gauge: No.8 (8mm tooth width) Type: Open end (separating) Lengths: 24 inch (61cm) · 26 inch (66cm) · 28 inch (71cm) · 30 inch (76cm) · 32 inch (81cm) Colours: Black · Navy · Royal Blue · Brown · Ivory · Light Ecru · Fawn · Khaki · Forest Green · Dark Grey · Burgundy · Red · Dark Wine · White Pack size: Sold individually (1 zip per order) HS Code: 9607110000 Country of Origin: United Kingdom The YKK Vislon No.8 is the go-to heavy-duty open-end zip for full-length coats, long parkas, maxi outerwear, and performance garments where a shorter jacket zip simply won't reach. At 8mm, the No.8 gauge teeth are substantially larger than the No.5 found in most everyday garments, delivering a stronger, more positive fastening that stands up to repeated daily use. The open-end construction means the zip separates fully at the base — the standard requirement for any garment that opens completely. The wide 35mm tape provides a generous seam allowance, ideal for stitching securely into heavier coat and parka fabrics. How to Order: Select your preferred Colour from the dropdown (14 options available). Select your required Length — 24, 26, 28, 30, or 32 inch. Add to basket and proceed to checkout. Colours may appear slightly different depending on your monitor settings and lighting conditions. Note: colour 578 (Dark Grey) appears closer to a mid-grey tone in real-world lighting. If colour matching is critical, we recommend ordering a sample first.

    159 in stock Express UK Shipping Available  

    £7.27 - £8.90

  • YKK Vislon No.8 open end zip 8mm heavy duty moulded plastic teeth jacket zip  Detailed close up view of a thirty-five millimeter wide fabric zipper tape backing featuring a durable chunky six millimeter plastic teeth track.

    YKK Vislon No.8 Heavy Duty Open End Zip 14 Colours 18 20 22 Inch

    108 in stock Express UK Shipping Available  

    A genuine YKK Vislon No.8 open-end jacket zip with moulded plastic teeth — available in 14 colours and three lengths, made in the UK. Brand: YKK Range: Vislon Material: Moulded plastic teeth, 35mm woven tape Gauge: No.8 (8mm tooth width) Type: Open end (separating) Lengths: 18 inch (46cm) · 20 inch (51cm) · 22 inch (56cm) Colours: Black · Navy · Royal Blue · Brown · Ivory · Light Ecru · Fawn · Khaki · Forest Green · Dark Grey · Burgundy · Red · Dark Wine · White Pack size: Sold individually (1 zip per order) HS Code: 9607110000 Country of Origin: United Kingdom The YKK Vislon No.8 is the standard open-end zip for outerwear, workwear, and performance clothing. The No.8 gauge means 8mm teeth — substantially larger than the No.5 used in most everyday garments — giving a stronger, more reliable fastening. Vislon moulded plastic teeth have a distinctive chunky appearance and a smooth, positive action that holds up to repeated use. The wide 35mm tape is well suited to heavier fabrics where a secure seam allowance matters. With 14 colours and three lengths, this is a practical stock zip for garment makers and repair specialists alike. How to Order: Select your preferred Colour from the dropdown (14 options available). Select your required Length — 18 inch, 20 inch, or 22 inch. Add to basket and proceed to checkout. Colours may appear slightly different depending on your monitor settings and lighting conditions. Note: colour 578 (Dark Grey) appears closer to a mid-grey tone in real-world lighting. If colour matching is critical, we recommend ordering a sample first.

    108 in stock Express UK Shipping Available  

    £5.93 - £6.89

  • Brass Heavy Weight Open End Jacket Zip Black or Brown No10 - ThreadandTrimmings Brass Heavy Weight Open End Jacket Zip Black or Brown No10 - ThreadandTrimmings

    Brass Open End Jacket Zip No.10 Extra Heavy Duty Black Dark Brown 45–80cm

    24 in stock Express UK Shipping Available  

    A Milward No.10 brass open-end jacket zip in extra heavy duty gauge — built for motorcycle gear, coats, and heavy outerwear where a standard zip simply won't do. Brand: Milward Material: Brass teeth, woven tape Type: Open end (separating), No.10 gauge Lengths: 45cm · 50cm · 55cm · 60cm · 65cm · 70cm · 75cm · 80cm Colours: Black · Dark Brown Pack size: Sold individually (1 zip per order) HS Code: 9607110000 Country of Origin: China The No.10 gauge means larger, heavier teeth than the No.5 zips found in most everyday garments — making this the right choice for motorcycle jackets, heavy winter coats, parkas, workwear, denim, leather goods, and bag making. The open-end construction allows the zip to fully separate at the base, so the garment opens completely. Brass teeth run smoothly and resist corrosion, making these zips equally suitable for new makes and garment repairs. How to Order: Select your preferred Colour (Black or Dark Brown) from the dropdown. Select your required Length from the available sizes (45cm–80cm). Add to basket and proceed to checkout. Screen colours may vary slightly from the physical product due to monitor settings and dye batch differences.

    24 in stock Express UK Shipping Available  

    £13.50 - £17.00

  • A close-up of a heavy-duty chunky plastic continuous zip chain, showing the teeth and the tape, on a white background. Heavy Duty Chunky Plastic Continuous Zip Chain - Useful For Marquees - 10m Roll - ThreadandTrimmings

    Heavy Duty Chunky Plastic Continuous Zip Chain 10m x No10 Useful For Marquees

    3 in stock Express UK Shipping Available  

    Heavy Duty Chunky Plastic Continuous Zip Chain | No 10 Weight - 10m Roll No 10 Weight Plastic Zip Chain The Price is for a 10 Meter Roll and Includes the following:- 4 Double Non Lock Sliders (2 Way Zip Pullers) 4 Long Pull Non Lock Sliders (Standard Zip Pullers) Teeth Measure 9mm wide The Tape is Polyester and Measures 35mm Wide (Additional Zip Pullers can be purchased from my shop)

    3 in stock Express UK Shipping Available  

    £39.99

  • Continuous Nylon Zip Chain - 10m x 9mm - 4 Double & 4 Long Pull Non Lock Sliders - ThreadandTrimmings Continuous Nylon Zip Chain - 10m x 9mm - 4 Double & 4 Long Pull Non Lock Sliders - ThreadandTrimmings

    Continuous Nylon Zip Chain No.9 10m with 4 Double & 4 Long Pull Sliders

    3 in stock Express UK Shipping Available  

    No.9 continuous nylon zip chain supplied in a 10m length with 8 sliders included — a practical all-in-one pack for bag making, upholstery, and heavy-duty sewing projects. Brand: Thread and Trimmings Material: Nylon coil teeth on woven tape Zip Chain Weight: No.9 (8mm wide teeth) Length: 10m continuous roll Sliders Included: 4 × Double Non-Lock Sliders & 4 × Long Pull Non-Lock Sliders Pack Size: 1 roll (10m) with 8 sliders HS Code: 9607190000 Country of Origin: China No.9 is one of the heaviest nylon coil weights available, making this chain ideal for bags, backpacks, luggage, upholstery, tent panels, and other applications where a robust, wide-tooth zip is needed. The 10m roll gives you plenty of length to cut to your exact requirements, and the included mix of double non-lock and long pull sliders covers the most common bag-making and soft-furnishing configurations. Non-lock sliders allow the zip to be opened from either direction without a fixed stop, giving flexibility when designing openings and pockets. How to Order: Confirm the No.9 (8mm) zip chain option is selected above. Choose your quantity and add to basket. Proceed to checkout as normal.

    3 in stock Express UK Shipping Available  

    £27.96

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