Standard Type 18-8 Stainless Nylon Insert Lock Nuts

We offer both type 18-8 & type 316 stainless steel nylon insert lock nuts. For salt water or chlorine pools type 316 is required. Type 316 stainless offers superior resistance to corrosion. 
Seize/Galling Warning: Using power/air operated tools to apply nylon insert lock nuts to screws or bolts will produce heat. This heat can cause the nylon to soften and seize. Anti-seize is a good idea when using these type of lock nuts.

Do not combine type 18-8/304 stainless bolts with 316 stainless lock nuts! This has been known to result in galling or seizing up. 
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  • Nylon Insert Lock Nut #4-40 Type 18-8 Stainless

    Nylon Insert Lock Nut #4-40 Type 18-8 Stainless
    $0.05 USD
    • 100 or more for $0.03 ea
    • 1000 or more for $0.03 ea

  • Nylon Insert Lock Nut #6-32 Type 18-8 Stainless

    Nylon Insert Lock Nut #6-32 Type 18-8 Stainless
    $0.06 USD
    • 100 or more for $0.05 ea
    • 1000 or more for $0.04 ea

  • Nylon Insert Lock Nut #8-32 Type 18-8 Stainless

    Nylon Insert Lock Nut #8-32 Type 18-8 Stainless
    $0.07 USD
    • 100 or more for $0.06 ea
    • 1000 or more for $0.05 ea

  • Nylon Insert Lock Nut #10-24 Type 18-8 Stainless

    Nylon Insert Lock Nut #10-24 Type 18-8 Stainless
    $0.08 USD
    • 100 or more for $0.07 ea
    • 1000 or more for $0.06 ea

  • Nylon Insert Lock Nut #10-32 (Fine Thread) Type 18-8 Stainless

    Nylon Insert Lock Nut #10-32 (Fine Thread) Type 18-8 Stainless
    $0.08 USD
    • 100 or more for $0.07 ea
    • 1000 or more for $0.06 ea

  • Nylon Insert Lock Nut #12-24 Type 18-8 Stainless

    Nylon Insert Lock Nut #12-24 Type 18-8 Stainless
    $0.17 USD
    • 100 or more for $0.15 ea
    • 1000 or more for $0.13 ea

  • Nylon Insert Lock Nut 1/4-20 Type 18-8 Stainless

    Nylon Insert Lock Nut 1/4-20 Type 18-8 Stainless
    $0.12 USD
    • 100 or more for $0.1 ea
    • 1000 or more for $0.08 ea

  • Nylon Insert Lock Nut 1/4-28 (Fine Thread) Type 18-8 Stainless

    Nylon Insert Lock Nut 1/4-28 (Fine Thread) Type 18-8 Stainless
    $0.14 USD
    • 100 or more for $0.12 ea
    • 1000 or more for $0.1 ea

  • Nylon Insert Lock Nut 5/16-18 Type 18-8 Stainless

    Nylon Insert Lock Nut 5/16-18 Type 18-8 Stainless
    $0.16 USD
    • 100 or more for $0.15 ea
    • 1000 or more for $0.13 ea

  • Nylon Insert Lock Nut 5/16-24 (Fine Thread) Type 18-8 Stainless

    Nylon Insert Lock Nut 5/16-24 (Fine Thread) Type 18-8 Stainless
    $0.17 USD
    • 100 or more for $0.16 ea
    • 1000 or more for $0.13 ea

  • Nylon Insert Lock Nut 3/8-16 Type 18-8 Stainless

    Nylon Insert Lock Nut 3/8-16 Type 18-8 Stainless
    $0.25 USD
    • 100 or more for $0.23 ea
    • 500 or more for $0.21 ea
    • 20000 or more for $0.16 ea

  • Nylon Insert Lock Nut 3/8-24 (Fine Thread) Type 18-8 Stainless

    Nylon Insert Lock Nut 3/8-24 (Fine Thread) Type 18-8 Stainless
    $0.27 USD
    • 100 or more for $0.25 ea
    • 500 or more for $0.22 ea

  • Nylon Insert Lock Nut 7/16-14 Type 18-8 Stainless

    Nylon Insert Lock Nut 7/16-14 Type 18-8 Stainless
    $0.43 USD
    • 250 or more for $0.36 ea
    • 50 or more for $0.41 ea

  • Nylon Insert Lock Nut 7/16-20 (Fine Thread) Type 18-8 Stainless

    Nylon Insert Lock Nut 7/16-20 (Fine Thread) Type 18-8 Stainless
    $0.53 USD
    • 250 or more for $0.43 ea
    • 50 or more for $0.51 ea

  • Nylon Insert Lock Nut 1/2-13 Type 18-8 Stainless

    Nylon Insert Lock Nut 1/2-13 Type 18-8 Stainless
    $0.53 USD
    • 25 or more for $0.51 ea
    • 250 or more for $0.43 ea

  • Nylon Insert Lock Nut 1/2-20 (Fine Thread) Type 18-8 Stainless

    Nylon Insert Lock Nut 1/2-20 (Fine Thread) Type 18-8 Stainless
    $0.74 USD
    • 25 or more for $0.72 ea
    • 250 or more for $0.61 ea

  • Nylon Insert Lock Nut 5/8-11 Type 18-8 Stainless

    Nylon Insert Lock Nut 5/8-11 Type 18-8 Stainless
    $1.20 USD
    • 25 or more for $1.15 ea
    • 250 or more for $0.99 ea

  • Nylon Insert Lock Nut 5/8-18 (Fine Thread) Type 18-8 Stainless

    Nylon Insert Lock Nut 5/8-18 (Fine Thread) Type 18-8 Stainless
    $1.45 USD
    • 25 or more for $1.4 ea
    • 250 or more for $1.2 ea

  • Nylon Insert Lock Nut 3/4-10 Type 18-8 Stainless

    Nylon Insert Lock Nut 3/4-10 Type 18-8 Stainless
    $1.95 USD
    • 25 or more for $1.9 ea
    • 250 or more for $1.65 ea

  • Nylon Insert Lock Nut 3/4-16 (Fine Thread) Type 18-8 Stainless

    Nylon Insert Lock Nut 3/4-16 (Fine Thread) Type 18-8 Stainless
    $2.35 USD
    • 25 or more for $2.25 ea
    • 250 or more for $1.95 ea