1/4"-20 X 1/2" Tamper Resistant Machine Screws | Round Head | One Way Drive | Steel Trivalent Zinc Plated (100/Pkg.)

Mutual Screw & SupplySKU: 1R25C050SZ

Price:
Sale price$16.07per 100( $0.16 each)
Pieces 100
Thread size 1/4-20
Length 1/2
Material Steel
Finish Trivalent Zinc Plated
Drive One Way Drive
Head style Round
Weight 2.0 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

Industrial fasteners engineered for secure, tamper resistant mounting in equipment enclosures and industrial machinery. These round head machine screws combine a one way drive with steel construction and a corrosion resistant trivalent zinc finish for long service life.

Specs

  • Dimensions: Diameter 0.25 inch; Length 0.5 inch
  • Thread size: 1/4-20
  • Drive type: One Way Drive
  • Head style: Round
  • Finish: Trivalent Zinc Plated
  • Material: Steel
  • Thread type: Unified National Coarse (UNC)
  • Packaging: 100 pieces per package

Features

  • Tamper resistance: One Way Drive design enables installation with a security driver and resists removal without the proper tool.
  • Corrosion protection: Trivalent Zinc plating provides corrosion resistance in standard industrial environments, extending service life on metal panels and enclosures.
  • Structural integrity: Steel construction with round head supports consistent torque transfer and load distribution in panel connections.
  • Head profile: Round head provides flush mounting and reduces snag risk during assembly and maintenance.
  • Applications: Ideal for securing access panels, control panels, electrical enclosures, and machinery housings in manufacturing and automation facilities.
  • Installation guidance: Use compatible one way drive bit; ensure sufficient thread engagement for secure fastening.

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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