#4-40 X 5/16" Machine Screws | Undercut Flat Head | Phillips Drive | 18/8 Stainless Steel Black Oxide (8000/Pkg.)

Discover a high-performance fastener designed for reliability and a clean, professional finish: the Machine Screws Phil Undercut Flat Head. Crafted from 18/8 stainless steel and finished in black oxide, these screws deliver exceptional corrosion resistance with a sleek, low-gloss appearance—perfect for metalwork, electronics, cabinetry, and appliances.

Key Features

• Undercut flat head design for flush seating and a streamlined surface
• Phillips drive (PH) for easy installation with standard screwdrivers
• Material: 18/8 stainless steel for strong, enduring durability
• Finish: Black oxide provides a uniform dark finish and added protection
• Thread size: 4-40 with a precise 5/16 in length for versatile fastening
• Type: Machine screw ideal for metal-to-metal applications, electronics enclosures, and cabinetry

Specifications

• Head style: Undercut flat
• Drive type: Phillips
• Material: 18/8 stainless steel
• Finish: Black oxide
• Thread size: 4-40
• Length: 5/16 in

Applications

• Electronics enclosures and panel assemblies
• Cabinetry, furniture hardware, and appliance components
• General metal-to-metal fastening where corrosion resistance and a clean appearance are important

Choose these Phillips underscut flat head machine screws for a durable, corrosion-resistant fastening solution that combines easy installation with a professional finish.