Knurled Roller/brake kits roller 1.ISO/TS16949 certified. 2.OEM is available. Wide range of brake hardware kits parts for European and American trucks and trailers ! RollerSmooth or KnurledQuality alloy steel, 3-5mm inductive heat treatment after hardening and temperingTo fit:Mercedes, MAN, Scania, Volvo, Mack, International, FreightlinerBPW, SAF,ROR,YORK, FRUEHAUF,FUWA,HENDRICKSON