#4-40 X 5/16" Machine Screws | Undercut Binder Head | Slotted Drive | Steel Zinc Plated (10000/Pkg.)

★★★★★ 4.3 106 reviews

US$81.81
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US$81.81
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Free shipping Free 30-day returns

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Product details

Management number 242054288 Release Date 2026/07/19 List Price US$81.81 Model Number 242054288
Category

Machine Screws Slotted Undercut Binder Zinc Plated 4-40 X 5/16 are precision machine screws featuring a slotted drive and an undercut binder head. Finished in zinc plating for corrosion resistance, these screws deliver reliable performance in binder-style assemblies and compact equipment.

Specifications

  • Thread size: 4-40
  • Length: 5/16 in
  • Drive type: Slotted
  • Head type: Undercut binder
  • Finish: Zinc plated
  • Material: Steel

Applications

Ideal for binder assemblies, electronics enclosures, cabinetry, and various machine components where a compact, secure fastening with a flush profile is required. The 4-40 thread is a common size for small hardware and pairs with matching tapped holes or nuts.

Key Benefits

  • Corrosion resistance thanks to zinc plating
  • Precise 4-40 threading for consistent performance
  • Slotted drive allows easy installation with standard tools
  • Undercut binder head provides a clean, low-profile finish

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4.3 out of 5
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