PEEK screws are mainly used in the field of mechanical fastening, such as mobile phones, computers, cars, bicycles, various machine tools, equipment, and almost all machines. It has the following characteristics: Excellent thermal degradation resistance, able to withstand chemical decomposition caused by heat. Good chemical resistance to many oils, alcohols, solvents and organics as well as harsh acids and alkalis at low concentrations and low temperatures. Hydrolysis resistance provides PEEK with the ability to maintain all physical properties when continuously exposed to water or steam at high temperatures and pressures, as well as providing very low moisture absorption. Excellent creep resistance allows PEEK screws to withstand large stresses over a long service life. Good abrasion and abrasion resistance; maintains electrical properties over a wide frequency and temperature range; radiation resistance allows PEEK to be used for high doses of ionizing radiation or for repeated sterilization by high doses