Boss dimensions - 
25mm O/D
M18 - 1.5p
15mm High

M18 x 1.5 pitch Socket head (Allen head) Grade 5.6 Mild Steel plug and Annealed copper washer for blanking Lambda (EGO / O2 ) sensor port
Dimension see drawing
  • d1   M18 x1.5pitch
  • d2   23mm
  • L     16mm
  • s     8mm

Universal M18x1.5 pitch blanking plug / bolt / bung / for Lambda sensor port - Picture 2 of 12
Please note: 2nd class post can now take up to 5 working days