Mounting sleeve with M10x1 thread for exhaust temperature sensors (EGT) Inner diameter: 3.5mm Key: 12mm Thread: M10x1 (outer), M8x1.25 (inner) Mounting sleeve with M10x1 thread for exhaust temperature sensors (EGT) Inside diameter: 3.5mmKey : 12mmThread: M10x1 (outside), M8x1.25 (inside) & nbsp