Just how strong are PEEK Screws?

PEEK (polyetheretherketone) is a thermoplastic material that is known for its high strength, stiffness, and resistance to chemicals and high temperatures. PEEK screws are often used in industrial and aerospace applications because of these properties. The strength of PEEK screws can vary depending on the specific type of PEEK used, the manufacturing process, and the design of the screw. In general, PEEK screws have a high tensile strength, typically ranging from 10,000 to 15,000 psi (pounds per square inch). This means that they can withstand a high level of force before breaking or deforming. It's important to keep in mind that the strength of a screw also depends on the material in which it is used. For example, a PEEK screw may be stronger than a metal screw when used in a plastic part, but weaker when used in a metal part. It's also important to note that PEEK screws have a high coefficient of thermal expansion, which means that they may become loose when exposed to high temperature and cause problems in applications with temperature variation, for that reason, PEEK screws are often used in conjunction with other fastening methods such as adhesive or locking elements.