#4-40 X 3/8" Machine Screws | Pan Head | Six Lobe Drive | Steel Black Zinc (10000/Pkg.)

Mutual ScrewSKU: 0406MTPBZKC

Price:
Sale price$396.34 Regular price$601.70per 10000( $0.04 each)
Pieces 10000
Measurement type Inch
Thread size #4-40
Diameter 4
Length 3/8
Material Steel
Grade Steel
Finish Black Zinc
Drive Six Lobe
Head style Pan
Threads per inch 40
Thread style Fully Threaded
Weight 13.0 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 Pan Steel Black Zinc Torx Alt 4/40 X 3/8

Secure assemblies with precision and durability using these Pan Head Machine Screws. Crafted from high-strength steel and finished in black zinc for corrosion resistance, they are designed to withstand heavy use in metal-to-metal applications.

Featuring a Torx drive, these screws deliver superior torque transfer and reduced cam-out compared to conventional drives, making them ideal for electronics, machinery, automotive, and general hardware projects.

Key specifications

  • Type: Pan head machine screws
  • Material: Steel
  • Finish: Black zinc for corrosion resistance
  • Drive style: Torx
  • Size / Thread: 4-40 UNC
  • Length: 3/8 inch

Why choose Torx Alt 4/40 x 3/8 screws?

  • Strong, reliable fasteners suitable for precise assemblies
  • Black zinc finish offers corrosion resistance while maintaining a clean, professional appearance
  • Torx drive minimizes stripping and increases torque tolerance for tough applications
  • Pan head blends flush seating with ample bearing surface for secure mounting

Applications include electronics enclosures, equipment housings, machinery assemblies, automotive fixtures, and any project requiring small-diameter, high-torque screws.

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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