FIX-TP2.5-9 is a type of a threaded ties, or fasteners, that are used to temporarily secure two pieces of material together. These thread ties are used in a variety of applications from electrical wiring, to general construction, and even in the manufacture of furniture and other items. They are designed to be made out of a high-strength plastic, usually nylon-based. The 2.5 indicates the thread diameter and the 9 indicates the thread pitch, or spacing, of the thread. The ties are resistant to corrosion and easy to install, making them a popular choice for those looking for an effective, adjustable, and economical solution to securing two pieces of material or keeping items neat and organized.