#4-40 X 1" Machine Screws | Fillister Head | Phillips Drive | 18/8 Stainless Steel (5000/Pkg.)

Engineered for durable, precise fastening, the Machine Screws Phil Fillister 18/8 Stainless 4-40X1 deliver reliable performance in compact assemblies where a flush profile matters.

Key features

• Head style: Phil Fillister head for a shallow, rounded profile and confident seating; designed for a clean look.
• Material: 18/8 stainless steel (A2), providing strong corrosion resistance and longevity in indoor and challenging environments.
• Size and threads: 4-40 UNC thread with 1" length; perfect for small electronics, cabinetry, and equipment housings.
• Finish: Bright, corrosion-resistant finish that resists tarnish and wipes clean easily.
• Type: Machine screw intended for threaded holes or mating nuts, ensuring secure, repeatable assemblies.

Specifications

• Diameter: 4-40
• Thread: UNC
• Length: 1 inch
• Material: 18/8 stainless steel
• Head: Philips Fillister

Applications

Ideal for consumer electronics, furniture hardware, cabinetry, appliance panels, and machinery enclosures where a low-profile, corrosion-resistant fastener is required.

Why choose 18/8 stainless steel

18/8 stainless steel offers excellent corrosion resistance, strength, and a bright appearance. These machine screws resist rust in humid environments and stand up to daily wear, making them suitable for long-term use in both indoor and protected outdoor applications.

Installation tips

• Use a compatible Phillips screwdriver to avoid cam-out and ensure full seating of the Fillister head.
• Ensure the receiving hole or nut is matched to 4-40 UNC threads.
• Do not overtighten; apply steady torque to prevent thread damage.