Stainless Flat Head Socket Screws - Size 4-40

These quality flat socket head bolts are countersunk so they sit flush with the surface after being installed. Standard sizes range from 4-40 up through 1/2". Larger sizes are available by request. Length is measured from top to bottom. Type 316 stainless is available by request.
Please select the size below for more information.

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  • Flat Head Socket Cap Screw 4-40 x 1/4" Type 304 Stainless

    Flat Head Socket Cap Screw 4-40 x 1/4" Type 304 Stainless
    $0.08 USD
    • 100 or more for $0.05 ea
    • 1000 or more for $0.04 ea

  • Flat Head Socket Cap Screw 4-40 x 3/8" Type 304 Stainless

    Flat Head Socket Cap Screw 4-40 x 3/8" Type 304 Stainless
    $0.06 USD
    • 100 or more for $0.05 ea
    • 1000 or more for $0.04 ea

  • Flat Head Socket Cap Screw 4-40 x 1/2" Type 304 Stainless

    Flat Head Socket Cap Screw 4-40 x 1/2" Type 304 Stainless
    $0.06 USD
    • 100 or more for $0.05 ea
    • 1000 or more for $0.04 ea

  • Flat Head Socket Cap Screw 4-40 x 5/8" Type 304 Stainless

    Flat Head Socket Cap Screw 4-40 x 5/8" Type 304 Stainless
    $0.07 USD
    • 100 or more for $0.05 ea
    • 1000 or more for $0.04 ea

  • Flat Head Socket Cap Screw 4-40 x 3/4" Type 304 Stainless

    Flat Head Socket Cap Screw 4-40 x 3/4" Type 304 Stainless
    $0.07 USD
    • 100 or more for $0.05 ea
    • 1000 or more for $0.04 ea

  • Flat Head Socket Cap Screw 4-40 x 1" Type 304 Stainless

    Flat Head Socket Cap Screw 4-40 x 1" Type 304 Stainless
    $0.12 USD
    • 100 or more for $0.08 ea
    • 1000 or more for $0.07 ea