Exclusive Offer 4-40 X 7/8″ Machine Screws Flat Head Phillips Drive 18/8 Stainless Steel Black Oxide (6000/Pkg.)

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.