ZBA 863 989 B · grub screw Volkswagen genuine (OEM) part number ZBA 863 989 B, grub screw. Fitted on (3)SCREW — pos 3 (KAT308.BIN)SCREW — pos 8 (KAT377.BIN)SCREW — pos 5 (KAT540.BIN) Open the interactive exploded diagram →