Lambda Boss M18 x 1.5mm pitch

with reduced outer diameter

to aid location before weld

Sensor Boss M12 x 1.25mm pitch

with thread down to 15mm deep

of overall depth 20mm

Sensor Boss M14 x 1.5mm pitch

Overall length is 16mm

Sensor Boss M16 x 1.5mm

to depth of 15mm

with 9mm through hole

Sensor Boss M16 x 1.5mm pitch

to 22mm deep with

5.5mm through hole

Sensor Boss M18 x 1.5mm pitch

with 12mm through hole

and 3mm deep flange

NOX Boss M20 x 1.5mm pitch thread with reduced

outer diameter to aid location before weld and lip to prevent

over insertion of sensor.

NOX Boss M22 x 1.5mm pitch thread with reduced

outer diameter to aid location before weld and lip to prevent

over insertion of sensor.

Sensor Boss M16 x 1.5mm

to depth of 13mm

with 9mm through hole

Sensor Boss M12 x 1.5mm pitch

straight through full 20mm depth