2:1 Pitch Metal Spiral Binding Coils
2" Nice Cutting Metal Spiral Binding Coils With Strong Tension Strength
Quick Details :
a. Made of good quality steel wire ;
b. Electroplated in various customized color ;
c. Diameter range from 1/4" to 2" ;
d. Ring number is 35 rings .
Specifications :
| Size(Inch) | Pitch | Inner DIa(mm) | Binding Thickness(mm) | 80g paper sheet | Loops/Spool |
| 1/4 | 3:1 | 6.4 | 4.5 | 45 | 80000 |
| 5/16 | 7.9 | 6.0 | 60 | 58000 | |
| 3/8 | 9.5 | 7.5 | 75 | 42000 | |
| 7/16 | 11.1 | 9.0 | 90 | 28000 | |
| 1/2 | 12.7 | 10.5 | 105 | 24000 | |
| 9/16 | 14.3 | 12 | 120 | 18000 | |
| 5/8 | 2:1 | 15.9 | 13.5 | 135 | 10000 |
| 3/4 | 19.1 | 16 | 160 | 7000 | |
| 7/8 | 22.2 | 19 | 190 | 4500 | |
| 1 | 25.4 | 22 | 220 | 3600 | |
| 1-1/8 | 28.6 | 25 | 250 | 3000 | |
| 1-1/4 | 31.8 | 28 | 280 | 2000 |
Our factory specilizes in manufacturing high quality book binding materials, such as nylon coated double loop wire, plastic coil, nylon coated metal coil, nylon coated calendar hanger, plastic comb...etc and related book binding machines. Our company has passed ISO9001 international quality system. All of our binding materials passed strict SGS testing and binding machines with CE certificate. They meet the standards of Euro-American markets.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.