#4-40 X 1/4" Flat Head Cap Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)
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#4-40 X 1/4" Flat Head Cap Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)

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#4-40 X 1/4" Flat Head Cap Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)

Mutual ScrewSKU: 0404CSFBB
Price:
$6.86per 100( $0.07 each)
Pieces 100
Measurement type Inch
Thread size #4-40
Length 1/4
Material Alloy Steel
Finish Thermal Black Oxide
Drive Hex Socket
Head style Flat
Threads per inch 40
Thread style Fully Threaded
Weight 1.0 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

Cap Screws Flat Socket Alloy Thermal Black Oxide 4-40 X 1/4 are precision-engineered fasteners crafted for secure, flush-mount assemblies. This socket cap screw features an alloy steel body finished with a thermal black oxide coating to enhance strength, reduce glare, and improve corrosion resistance in demanding environments.

Designed for reliability in electronics, machinery, automotive components, and precision equipment, these screws provide a durable grip with an internal hex drive for a clean, low-profile installation.

Specifications

  • Drive type: Internal hex (Allen) drive
  • Finish: Thermal black oxide
  • Material: Alloy steel
  • Thread size: 4-40
  • Length: 1/4 in
  • Head type: Cap screw (socket cap)

Key benefits include excellent torque transmission, consistent thread engagement, and a sleek, low-profile appearance that blends with your design while resisting corrosion in mixed environments. Stocked in common 4-40 x 1/4 inch sizes to fit a wide range of projects—order today to secure a dependable fastener for your build.

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800-222-0324

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