#4-40 X 3/8" Socket Head Cap Screws | 18/8 Stainless Steel Black Oxide (300 / Pkg.)
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#4-40 X 3/8" Socket Head Cap Screws | 18/8 Stainless Steel Black Oxide (300 / Pkg.)

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#4-40 X 3/8" Socket Head Cap Screws | 18/8 Stainless Steel Black Oxide (300 / Pkg.)

Mutual ScrewSKU: 0406CSP188BYW
Price:
$47.84per 300( $0.16 each)
Pieces 300
Measurement type Inch
Thread size #4-40
Length 3/8
Material 18/8 Stainless Steel
Grade 18/8
Finish Black Oxide
Drive Hex Socket
Head style Socket
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

Socket Head Cap Screws 18/8 Stainless Black Oxide 4/40 X 3/8 are precision fasteners engineered for durability and corrosion resistance. Made from 18/8 stainless steel and finished with a black oxide coating, these screws provide a non-reflective surface ideal for assemblies where glare must be minimized and reliability is essential.

Designed for applications requiring a secure, flush-fitting fastener with an Allen drive, these socket head cap screws offer strong torque transfer and long-lasting performance in a variety of environments.

Key specifications

  • Material: 18/8 stainless steel
  • Finish: Black oxide
  • Size: 4-40 thread, 3/8" length
  • Drive Type: Socket head (Allen) drive
  • Applications: Precision machinery, electronics assembly, cabinetry, automotive hardware
  • Benefits: Corrosion resistance, low glare finish, reliable torque, durable performance

Whether you’re updating a tool, assembling a precision device, or completing a hardware kit, these socket head cap screws deliver consistent performance and a clean finish. Order confidently for projects that demand quality stainless fasteners with a sleek black oxide look.

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800-222-0324

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