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Metric Straight Thread O-Ring

  • Thread conforms to ISO 261
  • Port conforms to ISO 6149 and SAE J2244
  • Pitch & diameter measured in inches e.g. G1/4-19
  • Parallel threads measured in millimeters, i.e. M22 x 1.5
  • Parallel threads require o-ring for pressure tight connection
  • Thread angle is 60°
  • Easily identified by raised ridge on female port counterbore
  • Not interchangeable with SAE or BSPP
Metric Thread Specifications
SizeThread Size
3 M3x0.5
5 M5x0.8
8 M8x1
10 M10x1
12 M12x1.5
14 M14x1.5
16 M16x1.5
18 M18x1.5
20 M20x1.5
22 M22x1.5
26 M26x1.5
27 M27x2
30 M30x2
33 M33x2
38 M38x2
42 M42x2
48 M48x2
60 M60x2
Thread Size = Male Thread OD (mm) x Thread Pitch (mm)

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