Limited Time 5/16″-18 X 3″ Machine Screws Flat Head Phillips Drive Steel Zinc Plated (500/Pkg.)
Original price was: $174.25.$73.19Current price is: $73.19.
For orders under $150.00, a shipping fee of $12.99 applies.
Premium 5/16-18 x 3 machine screws crafted from flat steel with a zinc-plated finish for corrosion resistance. These Phillips-drive screws are ideal for reliable metal-to-metal assemblies in panels, enclosures, and machinery.
Size and thread: 5/16-18 UNC machine screws
Length: 3 inches
Drive type: Phillips drive (PH)
Material: Flat steel
Finish: Zinc plated for corrosion resistance
Designed for use in equipment, electrical panels, machinery, and other hardware applications that require a sturdy, reliable fastener. The zinc plating helps protect against rust and wear, helping your assemblies stay secure over time.
Why choose these machine screws?
Consistent thread engagement for dependable holds
Corrosion resistance thanks to zinc plating
Easy installation with standard Phillips tools
Standard 5/16-18 UNC thread for broad compatibility
Upgrade your toolkit with these versatile 5/16-18 x 3 Phillips-drive machine screws for durable performance in a wide range of projects.





