Machine Screws Phil Flat Steel Black Zinc 1/4-20 x 5/8 delivers dependable fastening for metal-to-metal and metal-to-board assemblies. Crafted from durable steel and finished in black zinc for corrosion resistance, these Phillips-drive flat-head machine screws sit flush in tapped holes, providing a clean, professional look for electronics, appliances, automotive trim, and cabinetry projects.

Key features:

• Drive type: Phillips (PH) head for easy handheld or powered screwdriving
• Head style: Flat countersunk head for a low-profile finish
• Material: Steel with black zinc finish for corrosion resistance
• Thread size: 1/4-20 UNC
• Length: 5/8″ (0.625″)
• Uses: Ideal for tapped holes in metal panels, enclosures, and assemblies

Why choose these machine screws?

• Strong steel construction provides reliable strength in demanding applications
• Black zinc coating offers durable corrosion protection and a sleek finish
• PH drive and low-profile head enable quick, precise fastenings with minimal protrusion

Tips for best results: use a PH screwdriver or bit that fits snugly to prevent cam-out, and select the correct torque to avoid stripping threads. Ensure youre using a 1/4″-20 tap or nut compatible with the 1/4-20 thread.