It might be glueable. As found on service sheet 257E.
Hornby Genuine X7480 Cylinder Block & Draincocks For Hogwarts Express Loco NEW
Hornby Genuine X7824 Cylinder Block For R3991 Flying Scotsman Class A3 NEW
Hornby Genuine Spares X4821 Cylinder Block For Fowler Class 2-6-4T R2738
Hornby Genuine X7224 Rebuilt Merchant Navy Class Cylinder Block For R3617 NEW
