... ,cross recessed flat head PEEK screw,hexagon head PEEK bolt,socket head cap PEEK screw, hexagon PEEK nut,PEEK washer,PEEK gasket,PEEK spacer,etc.2. Super ... 3. Aerospace parts 4. Seals,Pump and valve components 5. Bearings and bushings (bearing grade PEEK) 6. Medical instrument parts 7.Food ...