#4-40 X 1/2" Socket Head Cap Screws | 18/8 Stainless Steel Black Oxide (300 / Pkg.)

Mutual ScrewSKU: 0408CSP188BYW

Price:
Sale price$49.95per 300( $0.17 each)
Pieces 300
Measurement type Inch
Thread size #4-40
Length 1/2
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 in 18/8 stainless steel with a robust black oxide finish provide a high-strength, corrosion-resistant fastener option for precision assemblies. Sized for 4-40 threads and 1/2 inch long, these screws deliver reliable clamping in tight spaces.

Key features:

  • Material: 18/8 stainless steel for excellent corrosion resistance and durability
  • Finish: Black oxide coating for reduced glare and smooth wear
  • Size: 4-40 thread, 1/2" length
  • Head type: Socket Head Cap
  • Drive: Hex socket (Allen) drive for secure installation
  • Applications: Ideal for electronics, hobbyist projects, machinery, robotics, cabinetry, and precision equipment

Why choose this fastener:

  • Reliable performance in assemblies requiring a low-profile head and precise torque control
  • Resists corrosion in challenging environments with stainless construction
  • Compatibility with standard 4-40 hardware for hobbyists and professionals alike

Enhance your toolkit with these socket head cap screws—durable, low-glare, and ready for accurate fastening in a variety of applications.

Add to cart now to secure a dependable fastener with superior corrosion resistance and a clean finish.

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

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