#4-40 X 7/8" Machine Screws | Round Head | Slotted Drive | 18/8 Stainless Steel (5000/Pkg.)

Mutual ScrewSKU: 0414MSR188KC

Price:
Sale price$146.23per 5000( $0.03 each)
Pieces 5000
Measurement type Inch
Thread size #4-40
Diameter 4
Length 7/8
Material 18/8 Stainless Steel
Grade 18/8
Finish Plain
Drive Slotted
Head style Round
Threads per inch 40
Thread style Fully Threaded
Weight 11.0 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

Master your assemblies with the Machine Screws Slotted Round 18/8 Stainless 4-40X7/8. Built for durability and precision, these screws are the trusted choice for metalworking, electronics, and cabinetry projects.

Key specs

  • Material: 18/8 stainless steel (304) for excellent corrosion resistance and long-lasting strength.
  • Head type: Slotted round head designed for flush, clean installations and straightforward drive with a flat-blade screwdriver.
  • Drive: Slotted (classic) drive for compatibility with standard tools.
  • Thread size: #4-40 UNC thread for precise, common fastener compatibility.
  • Length: 7/8 inch (22.2 mm) overall length to fit a range of materials and thicknesses.
  • Applications: Ideal for machinery, electronics enclosures, cabinetry, appliances, and other precision fastening tasks.

Why choose these stainless machine screws? The 18/8 stainless grade delivers superior corrosion resistance in indoor and moderately exposed environments, while the round head and slot drive provide a timeless, easy-to-drive solution that reduces cam-out and ensures dependable performance. For best results, pair with compatible 4-40 tapped holes and a properly sized flat-blade screwdriver.

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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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