Description Aluminium engine lid stand off packer , with Zinc plated steel nuts . (I also do these in a Stainless steel hardware as well BB-434ST )  Used to hold the rain tray in place on 912 engine lids . Advert options are from 1 packer and a full set of 6 packers complete with steel grub screw and Zinc Domed nut , threaded M5 each end . OEM Number90251212520G