1/4″-20 X 1/2″ Machine Screws Truss Head Phillips Drive Steel Black Oxide (4000/Pkg.) Special Discount

Machine Screws Phil Truss Steel Black Oxide 1/4-20 X 1/2 — these precision machine screws are designed for durable metal-to-metal and panel fastening across a range of applications. Featuring a steel body finished in black oxide, they deliver a clean, low-glare appearance with dependable torque performance.

Designed with a Phillips drive and a low-profile truss head, these screws seat flush against surfaces while providing strong load distribution across the joint. The 1/4-20 UNC thread and 1/2 inch length make them ideal for medium-thickness materials, electronics enclosures, and cabinetry hardware.

Key specifications

Thread size: 1/4-20 UNC

Length: 1/2 in

Head style: Truss head with Phillips drive

Material: Steel

Finish: Black oxide

Typical use: Metal panels, enclosures, cabinetry, furniture hardware, and equipment assemblies

Why choose black oxide steel machine screws

Black oxide finish provides a durable, corrosion-resistant surface with a professional, low-glare appearance. They’re a versatile choice for everyday fastening tasks where strength, reliability, and a clean look matter.

Installation tips

Use a compatible Phillips screwdriver for best results and to minimize cam-out.

Ensure mating threads are clean and free of debris for smooth engagement.

Pair with washers or locking compounds if vibration is a concern in your application (where appropriate).