[10000 BULK] Machine Screws Slotted Indented Hex Washer Serrated Steel Black Oxide 4-40X1/4

Mutual ScrewSKU: 0404MSWBKC

Price:
Sale price$376.61per 10000( $0.04 each)
Pieces 10000
Measurement type Inch
Thread size #4-40
Diameter 4
Length 1/4
Material Steel
Grade Steel
Finish Black Oxide
Drive Slotted
Head style Indented Hex
Threads per inch 40
Thread style Fully Threaded
Weight 10.0 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

Engineered for secure, durable fastening, the Machine Screws Slotted Indented Hex Washer Serrated Steel Black Oxide 4-40X1/4 is ideal for electronics, enclosures, control panels, and light machinery. This precision screw combines a slotted drive with an indented hex washer head to deliver a flush, snag-free installation in compact assemblies.

  • Drive Style: Slotted for broad compatibility with standard screwdrivers.
  • Head & Washer: Indented hex washer head with a serrated washer to grip the surface and resist loosening from vibration.
  • Material & Finish: High-strength steel with a black oxide finish for reduced glare and mild corrosion resistance.
  • Thread & Length: 4-40 thread size with a 1/4" length (small-diameter machine screw for precise fastening).

Designed for reliability in tight spaces, these machine screws provide a secure hold without protruding hardware. The serrated washer helps bite into panels and plates, while the black oxide finish preserves a clean appearance in interior applications.

Applications

  • Electrical enclosures and control panels
  • Machinery assemblies and instrument housings
  • Electronics enclosures and dash panels

Choose these 4-40x1/4 machine screws when you need a compact, versatile fastener that pairs a traditional slotted drive with a robust indented hex washer design for enhanced grip and vibration resistance.

Can We Help?

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

You may also like

Recently viewed