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

Mutual ScrewSKU: 1408MPTBKC

Price:
Sale price$298.29per 4000( $0.07 each)
Pieces 4000
Measurement type Inch
Thread size 1/4-20
Diameter 1/4
Length 1/2
Material Steel
Grade Steel
Finish Black Oxide
Drive Phillips
Head style Truss
Threads per inch 20
Thread style Fully Threaded
Weight 46.0 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

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).

Can We Help?

If you’re not sure that this product is right for you, give us a call!
800-222-0324

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