4-40 X 3/16″ Machine Screws Flat Head Phillips Drive Steel Black Zinc (10000/Pkg.) Brand New
Original price was: $456.03.$191.53Current price is: $191.53.
Machine Screws Phil Flat Steel Black Zinc 4-40 x 3/16 are engineered for precise, reliable fastening in metal assemblies. Made from flat steel and finished with a black zinc coating, these screws resist corrosion while delivering a clean, low-profile look. With a 4-40 thread and 3/16 inch length, they’re ideal for light- to medium-duty applications in electronics, enclosures, chassis, and panel mounting.
Material: Flat steel
Finish: Black zinc coating for durability and corrosion resistance
Thread size: 4-40
Length: 3/16 inch
Common uses: Electronics, enclosures, chassis, and panel mounting
Choose these machine screws for dependable performance in tight spaces where a secure, unobtrusive fastener is required. They combine strength, longevity, and a sleek finish that blends with metal hardware and enclosures.





