Flash Sale 5/16″-18 X 1-1/4″ Machine Screws Round Head Phillips Drive Steel Zinc Plated (100/Pkg.)

Machine Screws Phil Round Steel Zinc Plated 5/16-18 X 1 1/4 are precision-engineered fasteners designed for durable, reliable performance in metal assemblies. Featuring a round head, Phillips drive, and zinc-plated finish, these screws provide a secure fit in a variety of applications.

Made from steel and finished with a zinc plating for corrosion resistance, these machine screws are ideal for securing metal components, equipment enclosures, electrical panels, and machinery where a threaded 5/16-18 connection is required.

Thread size: 5/16-18

Length: 1 1/4 inches

Head style: Round

Drive type: Phillips (Phil)

Material: Steel

Finish: Zinc plated for corrosion resistance

Usage: Suitable for tapped holes or mating nuts with 5/16-18 threads

Tip: For best results, check compatibility with your tapped hole or nut and ensure full thread engagement for maximum holding power. Pair with a compatible washer when required by your assembly.

Whether youâ ™re outfitting a repair project, a fabrication job, or routine equipment maintenance, these zinc-plated round-head machine screws deliver dependable performance with a clean, professional look.