Thread is a kind of yarn used for sewing. It can be made of many different materials, including cotton, linen, nylon and silk

The thread is made of a variety of materials. If the thread is stronger than the material used for the connection, the material may tear before the thread breaks if the joint is stressed. Clothing is usually sewn with threads that are less strong than the fabric, so that when under pressure the seams break before the clothing. Heavy loads that must withstand considerable pressure, such as furniture, car seats, tarpaulins, tents and harness, require very strong threads. Attempts to use light threads for repair usually result in rapid failure, but reusing a thread stronger than the material being sewn can eventually cause the material to crack before the thread itself is released