5/16″-18 X 1″ Machine Screws Flat Head Phillips Drive 316 Stainless Steel (100/Pkg.) Get Yours

Machine Screws Philips Flat Head 316 Stainless 5/16-18 x 1 are premium fasteners engineered for strength, durability, and corrosion resistance in demanding environments.

Made from 316 stainless steel, these fasteners resist rust, salt spray, and moisture, making them ideal for outdoor, marine, automotive, and industrial applications. The Phillips drive provides easy seating and repeatable torque for consistent results, while the flat-head profile delivers a flush, clean finish in countersunk assemblies.

Material: 316 stainless steel for excellent corrosion resistance

Size: 5/16-18 UNC thread, 1 inch length

Drive: Phillips (PH) drive for reliable engagement

Head type: flat-head (countersunk) for a flush appearance

Finish: natural stainless finish

Applications: suitable for equipment enclosures, marine hardware, cabinetry, automotive trim, and general fastener assemblies

Choose these machine screws when you need trusted performance and corrosion resistance in challenging conditions. Always use the correct pilot hole and driver to ensure a secure fit and avoid thread damage.