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| Categories | Metal Spiral Binding Coils | 
|---|---|
| Brand Name: | Sudi | 
| Model Number: | 6MM to80MM | 
| Certification: | ROHS , SGS , CPST | 
| Place of Origin: | China | 
| MOQ: | 500 pieces | 
| Price: | Negotiable | 
| Payment Terms: | T/T, L/C, D/P, Western Union, MoneyGram | 
| Supply Ability: | 500,000 pieces per month | 
| Delivery Time: | 15-30 days | 
| Packaging Details: | Export carton | 
| Product Name: | Double Coil | 
| Pitch: | 5mm, 6mm, 6.35mm, 8mm, 8.47mm, 10mm &12.7mm | 
| Wire diameter: | (Customizable thickness) | 
| Finish: | Plastic encapsulation/plating | 
| Color: | Any color can be made | 
| Dimension: | 6-80MM | 
| Hole Distance: | 2:1/ 3:1 /4:1 | 
| Function: | Books, sales presentations, reference materials, calendars, notebooks, etc. | 
| Company Info. | 
| HongKong Sudi Stationery Limited | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
SGS ID 6.4-50 mm metal book binding coil, suitable for desk calendar notebook
Our steel spirals are made of imported nylon-coated wire. The outer are coated with bright color, Thin and well- proportioned nylon, the inner are made of rigid steel. No matter the apperance or durability, They are far better then the ordinary steel spiral.
Advantages:
1. Made of imported high quality nylon-coated wire
2. full range of diameter from 1/4'' to 1-1/2'', accurate pitch, pitch can be special-ordered.
3. Large inventory, fast delivery
4. pre-cutting service for free
5. Wide range of colors choices, including gold, silver, bronze and a variety of flashing colors.
![]()  | Product Details | |
| Name: | Metal Spiral Binding Coil Wire O | |
| Materical: | Metal Plastic | |
| Color: | Any colors is available | |
| Pitch: | 5-12.7mm | |
| Size: | 10mm | |
| Wire Dia: | 1.3mm | |
| Length: | A4,A3,A5,B5,A6,A7 etc ; OEM length viable | |
| Key Word: | Metal Single Coils Spiral, Metal Spiral Binding Coil Rose Gold, office binding supplies  | |
| Packing Details: | 100pcs/box, 20boxes/carton. Carton size: 325x365x345mm  | |
Pitch introduction:

Applications:
Widely use for stationery items. such as reports,books,surveys,sales presentations, reference materials, training manuals, cookbooks,calendars, notebooks,proposals,summaries etc.
Nylon coated steel spiral specifications:
| Roll diameter | Recommended maximum book thickness |  Asphalt | |
| inch | Mm | Mm | Mm | 
| 1/4 | 6.4 | 3.4 | 6 | 
| 5/16 | 7.9 | 4.9 | 6 | 
| 3/8 | 9.5 | 6.5 | 6 | 
| 7/16 | 11.1 | 8.1 | 6 | 
| 1/2 | 12.7 | 9.7 | 6 | 
| 9/16 | 14.3 | 11.3 | 6 | 
| 5/8 | 15.9 | 12.9 | 6 | 
| 3/4 | 19.1 | 15.1 | 6 | 
| 7/8 | 22.2 | 18.2 | 6 | 
| 1 | 25.4 | 20.4 | 6 or 8 | 
| 1-1/4 | 31.8 | 25.8 | 6 or 8 | 
| 1-1/2 | 38.1 | 32.1 | 6 or 8 | 
| 2 | 50.8 | 42.8 | 6 or 8 | 
Specification :
| Dimensions (mm) | Wire diameter (mm) | length | Packing (pcs/box) | Universal pitch | A4 length | 
| 6 | 0.8 | A4 | 300 | 5MM | 59 rings/piece | 
| 8 | 0.9 | A4 | 300 | ||
| 10 | 0.9 | A4 | 200 | ||
| 12 | 1.0 | A4 | 200 | ||
| 14 | 1.0 | A4 | 200 | ||
| 16 | 1.15 | A4 | 150 | ||
| 18 | 1.15 | A4 | 150 | ||
| 20 | 1.15 | A4 | 150 | ||
| 22 | 1.15 | A4 | 100 | ||
| 24 | 1.15 | A4 | 100 | ||
| 26 | 1.15 | A4 | 100 | ||
| 28 | 1.15 | A4 | 75 | 6MM | 49 rings/piece | 
| 30 | 1.2 | A4 | 75 | ||
| 32 | 1.2 | A4 | 75 | ||
| 34 | 1.2 | A4 | 50 | ||
| 36 | 1.2 | A4 | 50 | ||
| 38 | 1.2 | A4 | 40 | ||
| 40 | 1.2 | A4 | 40 | ||
| 42 | 1.4 | A4 | 25 | ||
| 44 | 1.4 | A4 | 25 | ||
| 46 | 1.4 | A4 | 25 | ||
| 48 | 1.4 | A4 | 25 | ||
| 50 | 1.4 | A4 | 25 | 
Material environmental protection certificate:


                                 
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