4:1 Pitch Coil Bindings

The standard pitch in the United States for the plastic coil is 4:1. Pitch refers to the holes-per-inch or the hole spacing. It is reflected in a ratio that includes the number of holes, a punctuation colon, and then the inch measurement. For example, 4:1. This ratio is read aloud/pronounced as "four to one" and means four holes for every 1 inch of length. 4:1 pitch binding coil spines are by far the most popular, as it is the standard spacing for coils in the United States. About 98% of our customers order 4:1 pitch spiral bindings.

 

Plastic Coil is a great way to add color when binding your book. Measuring at a 12" or 36" length, the pitch for spiral coil bindings can be 4 or 5 holes per inch, with sizes ranging from 6mm (1/4 inch) to 50mm (2 inches). Being both durable and flexible, you'll be able to lay your documents completely flat or wrap around. Our coil supplies keep their shape and come in a variety of colors. If you don't see your color, we will be more than happy to custom PMS match it for you! Get simple, flexible, affordable, and professional spiral coil binding spines right here at SpiralBinding.com.

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  1. 4:1 Silver 12" Spiral Plastic Coils

    • Sizes available from 6mm-32mm (1/4"-1-1/4")
    • Bind up to 290 Sheets (20 lb.) or a 1-1/16" Thick Stack
    • 4:1 Pitch (Standard) Hole Spacing
    • 12" Long Coils (Standard Letter Size)
    Product Name Item Number Price Qty
    Spiral Plastic Coil 4:1 12" [Silver, 6 mm (1/4")] 100 /Box 334106SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 7 mm (9/32")] 100 /Box 334107SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 8 mm (5/16")] 100 /Box 334108SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 9 mm (23/64")] 100 /Box 334109SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 10 mm (3/8")] 100 /Box 334110SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 11 mm (7/16")] 100 /Box 334111SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 12 mm (1/2")] 100 /Box 334112SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 13 mm (17/32")] 100 /Box 334113SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 14 mm (9/16")] 100 /Box 334114SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 15 mm (19/32")] 100 /Box 334115SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 16 mm (5/8")] 100 /Box 334116SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 18 mm (23/32")] 100 /Box 334118SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 20 mm (3/4")] 100 /Box 334120SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 22 mm (7/8")] 100 /Box 334122SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 25 mm (1")] 100 /Box 334125SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 28 mm (1-1/8")] 100 /Box 334128SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 30 mm (1-3/16")] 100 /Box 334130SILV Request Quote
    Spiral Plastic Coil 4:1 12" [Silver, 32 mm (1-1/4")] 100 /Box 334132SILV Request Quote

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