The Industry Standard for Denim & Workwear!
Upgrade your garment projects with the durability of the YKK No. 5 Brass Gold Jean Zip (RGC56). Specifically engineered for denim, heavy cottons and workwear, these closed-ended metal zippers offer the perfect blend of vintage aesthetics and modern reliability.
Whether you are repairing a favorite pair of jeans, tailoring bespoke corduroy trousers, or adding secure pockets to a jacket, the RGC56 series provides a smooth, snag-free glide that stands the test of time.
Key Features & Benefits
- Heavy-Duty Brass Teeth: The No. 5 gauge (5mm) brass teeth are robust enough for heavy denim and frequent use, featuring a classic gold finish that complements indigo and earth-toned fabrics.
- Semi Auto-Lock Slider: Designed for security, the slider stays in place when the puller is flattened, preventing accidental “zipper creep” during wear.
- Closed-End Design: Ideal for trouser flies, skirt openings, and interior pockets where a fixed base is required.
- Professional Finish: Trusted by high-end fashion brands and local tailors alike, these number 5 zips offer a premium “hand-feel” and a polished look for any garment.
- Versatile Sizing: Available in lengths ranging from 10cm (4″) to 28cm (11″) to suit everything from low-rise jeans to deep utility pockets.
Specifications
- Brand: YKK®
- Model: RGC56 (Gold/Brass)
- Type: Closed Ended
- Teeth Material: Solid Brass
- Tape Material: Durable Polyester
- Slider: Semi Auto-Lock
- Recommended For: Jeans, Cords, Heavy Trousers, Skirts, and Accessories.
- Colours available: Black, white, navy, brown, beige, red, grey and khaki. Other colours available to order – please call us on 020 7254 2451 or get in touch here.
Why Choose the YKK RGC56 from William Gee?
At William Gee, we have supplied the UK fashion industry since 1906. We stock the RGC56 in a wide spectrum of essential colours – including Navy, Black, Grey, and Beige – to ensure a perfect match for your fabric.
Not sure which size you need? Use our handy conversion chart below:
| CM | 10 | 13 | 15 | 18 | 20 | 23 | 25 | 28 |
| Inches | 4″ | 5″ | 6″ | 7″ | 8″ | 9″ | 10″ | 11″ |
We’re thrilled to announce that we’ve partnered with Tree Nation, the platform to reforest the world & fight climate change! Home to over 90 planting projects in 33 countries, Tree Nation is a non-profit organisation that helps people & companies offset their CO2 emissions.
Alex Kerr –
Seriously good quality zips from YKK as usual. These zips were perfect for jeans and trousers. Will be back x