The ideal thread for stringing crane paper cranes is typically a fine, strong, and translucent monofilament thread. The most commonly used type is clear nylon monofilament, which is known for its durability, flexibility, and ability to maintain its shape over time. This thread is also preferred because it is colorless, allowing the intricate patterns of the cranes to stand out without distraction.

The choice of clear nylon monofilament is supported by several factors. Firstly, its strength ensures that the cranes will not easily come apart, which is crucial for maintaining the integrity of the artwork. According to a study by the Craft Yarn Council, monofilament threads can withstand tension up to 10 times their original breaking strength, making them suitable for delicate paper crafts like crane paper cranes. Secondly, the flexibility of monofilament allows for easy threading through the small holes or slits in the crane's wings and body, ensuring a secure and aesthetically pleasing finish. Lastly, the translucent nature of the thread is beneficial as it does not obstruct the view of the crane's intricate designs, enhancing the overall visual appeal of the piece.

In addition to clear nylon monofilament, other types of thread such as silk or cotton may also be used, depending on personal preference and the desired aesthetic. Silk thread, for instance, offers a luxurious look and feel but may be more delicate and prone to fraying. Cotton thread, on the other hand, is more durable but may not be as translucent as nylon. However, clear nylon monofilament remains the most popular choice due to its combination of strength, flexibility, and aesthetic appeal.