M22 x 1.5 Sensor Boss (31.75mm dia) Sizes can be seen in photo's however, any questions please ask. Material is 303ss (can be welded).
Laser 8412 Thread Chaser For NOx Sensor Ports M22 x 1.5
M22 x 1.5 Differential Drain Plug For BMW 1 2 3 4 5 6 7 8 X Z Series 33117525064
Stahlbus Oil Drain Valve M22 x 1.5mm Thread - The Smart Way To Change Oil
22mm M22 x 1.5mm Std right hand METRIC HSS SECOND / Plug TAP 1.5mm PITCH H2
Sealey VS536 Nitrogen Oxide Sensor Port Thread Chaser M22 x 1.5mm
FOR OPEL VAUXHALL ADAM CORSA D DRIVESHAFT HUB NUT FRONT M22 x 1.5