Extension Plugs

Custom Mold Extension Plugs are manufactured to tight tolerances in the USA.

Standard thread systems require tapered external threads to seal in tapered holes

  • ALL Custom Mold Extension plugs
    have tapered pipe threads.
  • In stock from 1/16" thru 1/2" pipe,
    including BSPT pipe sizes.
  • Available in brass and
    stainless steel.
  • Available in standard lengths, or we
    will cut them to length for you -
    with same day shipping.

Straight, pre-cut threads for adjustment if required (see here)

One piece construction for fast assembly and positive removal

Standard tapered pipe threads

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