#4-40 X 7/8" Machine Screws | Flat Head | Phillips Drive | 18/8 Stainless Steel Black Oxide (6000/Pkg.)

★★★★★ 4.5 82 reviews

US$90.29
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US$90.29
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Free shipping Free 30-day returns

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Product details

Management number 242054426 Release Date 2026/07/19 List Price US$90.29 Model Number 242054426
Category

Engineered for durability and precision, our Machine Screws Phillips Flat Head 18/8 Stainless Steel with Black Oxide finish deliver reliable performance in a wide range of assemblies. Sized at 4-40 with a 7/8" length, these countersunk Phillips-drive screws provide a flush, professional appearance for electronics enclosures, cabinetry, and mechanical builds.

Key features

  • Drive type: Phillips
  • Head style: Flat head (countersunk)
  • Material: 18/8 stainless steel (304)
  • Finish: Black oxide coating for a discreet, satin look
  • Thread size: 4-40
  • Length: 7/8" (0.875")

Applications

Ideal for electronics projects, cabinetry, appliances, and general mechanical assemblies where a strong, corrosion-resistant fastener with a clean, professional finish is required.

Why choose stainless with a black oxide finish?

The 18/8 stainless steel offers excellent corrosion resistance and durability, while the black oxide finish provides a low-profile appearance that blends with metals and plastics in a variety of environments. This combination supports long-lasting performance in indoor and sheltered outdoor settings.

Installation tips

Pair with a compatible Phillips screwdriver to achieve proper torque. Pre-drill pilot holes as needed to ensure accurate alignment and prevent material cracking. Keep threads clean and lubricated if used in challenging materials for smoother installation.


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82 ratings | 34 reviews
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