1/4"-20 X 1/2" Machine Screws | 82 Degree Flat Undercut Head | Phillips Drive | Steel Zinc Plated (4000/Pkg.)

Stock up with a 4000-piece bulk pack of Phillips drive machine screws. Each screw is 1/4-20 x 1/2 inch, made from steel and zinc plated for durability and corrosion resistance, and features an 82-degree flat undercut head for flush seating in countersunk applications.

• Size and threading: 1/4-20 coarse thread, 1/2 inch length — standard fasteners for versatile metal-to-metal and metal-to-wood applications.
• Drive type: Phillips (PH) drive for reliable, centered torque and broad compatibility with common tools.
• Head style: 82-degree flat undercut head designed to sit flush in countersunk surfaces.
• Material and finish: Steel with zinc plating for added strength and corrosion resistance.
• Quantity: Bulk pack of 4000 screws, ideal for production runs, repair shops, and large projects.
• Applications: Suitable for machinery, appliances, enclosures, and general assemblies requiring secure, flush-mounted fasteners.

Optimize your workflow with these reliable screws — consistent size, drive, and head geometry to accelerate assembly and ensure a clean, professional finish.