1/4"-28 X 5/8" Machine Screws | Flat Head | Phillips Drive | Steel Zinc Plated (4000/Pkg.)

Secure, high-performance fasteners designed for precision metalwork, these Phillips flat-head machine screws are ideal for flush, professional assemblies. Built from durable steel and finished with zinc plating, they resist corrosion while delivering dependable strength in demanding environments.

Overview

Size: 1/4-28 x 5/8 in • Drive: Phillips • Head: Flat-head • Material: Zinc-plated steel • Thread: UNF 1/4-28 (fine thread)

Key Features

• Size: 1/4-28 x 5/8 in
• Drive Type: Phillips (PH) head for secure, precise torque
• Head Style: Flat-head designed to sit flush in countersunk holes
• Material & Finish: Zinc-plated steel provides corrosion resistance for long-lasting use
• Thread Type: UNF 1/4-28, delivering a fine pitch for accurate clamping

Applications

Perfect for electronics enclosures, metal chassis, machinery assemblies, and other precision projects where a flush, secure fastening is required and a zinc-plated finish adds durability in indoor or mildly humid environments.

How to Use

Choose a Phillips screwdriver that matches the screw size for optimal engagement. Align the screw with a properly tapped hole or nut, apply steady torque, and ensure a flush seating with the countersunk head.

Why Choose These Screws

Our 1/4-28 x 5/8 in Phillips flat-head machine screws combine strong steel construction with a corrosion-resistant zinc finish, delivering reliable performance across a range of industrial and DIY applications. Add them to your fastener kit for consistent, high-quality results.