Weekend Sale 4-40 X 5/8″ Machine Screws Round Head Slotted Drive Steel Black Zinc (10000/Pkg.)

Engineered for reliable fastening in metal-to-metal assemblies, these Machine Screws Slotted Round Steel Black Zinc 4/40 x 5/8 deliver secure, durable performance for electronics, appliances, and industrial projects. The precise 4-40 threads and compact 5/8″ length make them ideal for light-to-medium duty mounting where a flush, low-profile fit is required.

Built from solid steel with a tough black zinc finish, these screws resist corrosion while providing a clean, professional look in finished assemblies. The slotted drive and round head offer a classic, versatile fastening solution that installers can rely on.

Key Features

Diameter: 4-40

Length: 5/8″ (0.625″)

Head: Round

Drive: Slotted

Material: Steel

Finish: Black zinc plating for corrosion resistance

Installation: Designed for use with standard flat-head screwdrivers

Applications

Electronics enclosures and control panels

Appliance assemblies and housing

Metal furniture and brackets

Machinery mounting and light-duty fixtures

Specifications

Diameter: 4-40

Length: 5/8″ (0.625″)

Head: Round

Drive: Slotted

Material: Steel

Finish: Black zinc