Stainless Half Couplings

Marine Bolt Supply offers (Marine Grade) Type 316 Stainless Steel NPT Half Couplings

The half couplings offered on this page are all standard schedule 40, threaded, type 316 stainless steel and are made from stainless steel welded pipe.

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*Click on each size below for more information


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  • Half Coupling 1/8 NPT S40 Type 316 Stainless

    Half Coupling 1/8 NPT S40 Type 316 Stainless
    $1.50 USD
    • 100 or more for $1.35 ea
    • 25 or more for $1.45 ea

  • Half Coupling 1/4 NPT S40 Type 316 Stainless

    Half Coupling 1/4 NPT S40 Type 316 Stainless
    $1.55 USD
    • 100 or more for $1.4 ea
    • 25 or more for $1.45 ea

  • Half Coupling 3/8 NPT S40 Type 316 Stainless

    Half Coupling 3/8 NPT S40 Type 316 Stainless
    $1.80 USD
    • 100 or more for $1.62 ea
    • 25 or more for $1.7 ea

  • Half Coupling 1/2 NPT S40 Type 316 Stainless

    Half Coupling 1/2 NPT S40 Type 316 Stainless
    $3.46 USD
    • 10 or more for $3.25 ea
    • 100 or more for $2.95 ea

  • Half Coupling 3/4 NPT S40 Type 316 Stainless

    Half Coupling 3/4 NPT S40 Type 316 Stainless
    $3.95 USD
    • 100 or more for $3.45 ea
    • 25 or more for $3.55 ea

  • Half Coupling 1 NPT S40 Type 316 Stainless

    Half Coupling 1 NPT S40 Type 316 Stainless
    $6.95 USD
    • 100 or more for $6.5 ea
    • 25 or more for $6.9 ea

  • Half Coupling 1-1/4 NPT S40 Type 316 Stainless

    Half Coupling 1-1/4 NPT S40 Type 316 Stainless
    $11.50 USD
    • 100 or more for $10 ea
    • 25 or more for $11 ea

  • Half Coupling 1-1/2 NPT S40 Type 316 Stainless

    Half Coupling 1-1/2 NPT S40 Type 316 Stainless
    $12.00 USD
    • 100 or more for $10.5 ea
    • 25 or more for $11 ea

  • Half Coupling 2 NPT S40 Type 316 Stainless

    Half Coupling 2 NPT S40 Type 316 Stainless
    $14.50 USD
    • 10 or more for $14.25 ea
    • 50 or more for $14 ea

  • Half Coupling 2-1/2 NPT S40 Type 316 Stainless

    Half Coupling 2-1/2 NPT S40 Type 316 Stainless
    $31.05 USD
    • 10 or more for $29.5 ea
    • 25 or more for $27.95 ea

  • Half Coupling 3 NPT S40 Type 316 Stainless

    Half Coupling 3 NPT S40 Type 316 Stainless
    $42.40 USD
    • 10 or more for $38 ea

  • Half Coupling 4 NPT S40 Type 316 Stainless

    Half Coupling 4 NPT S40 Type 316 Stainless
    $69.85 USD
    • 10 or more for $62.85 ea