PLASTIC BOLTS MATERIAL: NYLON, PC, PP,PVC etc. HEAD: FLAT, HEXAGON, PAN, ROUND etc. SIZE: M2-M20 LENGTH:10mm-200mm PLASTIC BOLTSMATERIAL: NYLON, PC, PP,PVC etc.HEAD: FLAT, HEXAGON, PAN, ROUND etc.SIZE: M2-M20LENGTH:10mm-200mmfull thread or half thread