Stainless Square Head Pipe Plugs

Marine Bolt Supply offers (Marine Grade) Type 316 Stainless Steel Steel Square Head Pipe Plugs

The pipe plugs offered on this page are all standard schedule 40, 150lb threaded, type 316 stainless steel.



*Click on each size below for more information
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  • Pipe Plug Square Head 1/8 NPT S40 Type 316 Stainless

    Pipe Plug Square Head 1/8 NPT S40 Type 316 Stainless
    $1.75 USD
    • 10 or more for $1.6 ea
    • 25 or more for $1.4 ea

  • Pipe Plug Square Head 1/4 NPT S40 Type 316 Stainless

    Pipe Plug Square Head 1/4 NPT S40 Type 316 Stainless
    $2.20 USD
    • 10 or more for $1.95 ea
    • 25 or more for $1.8 ea

  • Pipe Plug Square Head 3/8 NPT S40 Type 316 Stainless

    Pipe Plug Square Head 3/8 NPT S40 Type 316 Stainless
    $2.90 USD
    • 10 or more for $2.5 ea
    • 25 or more for $2.3 ea

  • Pipe Plug Square Head 1/2 NPT S40 Type 316 Stainless

    Pipe Plug Square Head 1/2 NPT S40 Type 316 Stainless
    $4.05 USD
    • 10 or more for $3.6 ea
    • 25 or more for $3.3 ea

  • Pipe Plug Square Head 3/4 NPT S40 Type 316 Stainless

    Pipe Plug Square Head 3/4 NPT S40 Type 316 Stainless
    $4.95 USD
    • 10 or more for $4.5 ea
    • 25 or more for $4 ea

  • Pipe Plug Square Head 1 NPT S40 Type 316 Stainless

    Pipe Plug Square Head 1 NPT S40 Type 316 Stainless
    $6.25 USD
    • 10 or more for $5.5 ea
    • 25 or more for $5 ea

  • Pipe Plug Square Head 1-1/4 NPT S40 Type 316 Stainless

    Pipe Plug Square Head 1-1/4 NPT S40 Type 316 Stainless
    $14.70 USD
    • 10 or more for $12.5 ea
    • 25 or more for $11.75 ea

  • Pipe Plug Square Head 1-1/2 NPT S40 Type 316 Stainless

    Pipe Plug Square Head 1-1/2 NPT S40 Type 316 Stainless
    $16.25 USD
    • 10 or more for $15 ea
    • 25 or more for $13 ea

  • Pipe Plug Square Head 2 NPT S40 Type 316 Stainless

    Pipe Plug Square Head 2 NPT S40 Type 316 Stainless
    $22.40 USD
    • 0 or more for $19.75 ea
    • 0 or more for $17.9 ea

  • Pipe Plug Square Head 2-1/2 NPT S40 Type 316 Stainless

    Pipe Plug Square Head 2-1/2 NPT S40 Type 316 Stainless
    $36.00 USD
    • 10 or more for $33 ea
    • 25 or more for $28 ea

  • Pipe Plug Square Head 3 NPT S40 Type 316 Stainless

    Pipe Plug Square Head 3 NPT S40 Type 316 Stainless
    $42.65 USD
    • 10 or more for $38 ea
    • 25 or more for $34 ea

  • Pipe Plug Square Head 4 NPT S40 Type 316 Stainless

    Pipe Plug Square Head 4 NPT S40 Type 316 Stainless
    $74.80 USD

    Discounts are available for selected products only!