Japanese JASO/JIS D2101 Taper Thread Pipe Plugs

Japanese Automotive Standard Organization Japanese Industrial Standards

  Square Head Pipe Plug Hex Head Pipe Plug Hex Socket
Size Square Head Hex Head Hex Socket
1/8 - 28
1/4 - 19
3/8 - 19
1/2 - 14
3/4 - 14  
1" - 11  
1-1/4 - 11    
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Pipe plugs manufactured to this Standard are used in automotive, transportation and commercial component assemblies designed and/or manufactured in Japan and in Japanese manufacturing facilities worldwide.

Available Materials

  • Steel (Low Carbon, Medium Carbon, Alloy)
  • Stainless Steel
  • Brass
  • Aluminum

Parts may not be produced in all materials noted above.