#4-40 X 3/8" Button Head Cap Screws | 18/8 Stainless Steel (100 / Pkg.)

Mutual ScrewSKU: 0406CSB188BB

Price:
Sale price$8.29per 100( $0.08 each)
Pieces 100
Measurement type Inch
Thread size #4-40
Length 3/8
Material 18/8 Stainless Steel
Grade 18/8
Finish Plain
Drive Hex Socket
Head style Button
Threads per inch 40
Weight 1.0 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

Cap Screws Button Socket 18/8 Stainless 4-40 X 3/8 are high-quality button head socket cap screws crafted from 18/8 stainless steel to deliver corrosion resistance and lasting durability in a compact, low-profile fastener. Perfect for precise assemblies in electronics, cabinetry, machinery, and light fabrication, these screws provide a clean, professional finish wherever a socket drive is required.

Key specifications

  • Material: 18/8 stainless steel (304) for excellent corrosion resistance.
  • Head style: Button head socket cap screw for a smooth, low-profile appearance.
  • Drive: Socket drive (Allen) for precise torque and reduced cam-out.
  • Thread size: 4-40
  • Length: 3/8 inch
  • Finish: Stainless steel finish for natural corrosion resistance.

Applications

  • Electronics enclosures and precision assemblies where a low-profile fastener is essential.
  • Cabinetry, decorative hardware, and home improvement projects requiring a clean, unobtrusive look.
  • General machinery, robotics, and automotive interior fittings that benefit from a durable stainless fastener.

Why choose 18/8 stainless cap screws? Cap Screws Button Socket 18/8 stainless combine high corrosion resistance with good strength, making them suitable for both indoor and damp environments. The button head and socket drive provide a neat, finished appearance and easy installation with standard Allen tools.

Care and maintenance

  • Clean with mild soap and water; dry thoroughly to prevent water spots and maintain corrosion resistance.
  • Avoid harsh cleaners that may degrade the stainless finish.
  • Store in a dry place to maximize longevity.

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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