[100 PKG] Set Screws Socket Knurled Cup Point Alloy Thermal Black Oxide 4-40 X 1/4
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[100 PKG] Set Screws Socket Knurled Cup Point Alloy Thermal Black Oxide 4-40 X 1/4

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[100 PKG] Set Screws Socket Knurled Cup Point Alloy Thermal Black Oxide 4-40 X 1/4

Mutual ScrewSKU: 0404SSKBB
Price:
$13.06per 100( $0.13 each)
Pieces 100
Measurement type Inch
Thread size #4-40
Length 1/4
Material Steel
Grade Alloy Steel
Finish Thermal Black Oxide
Drive Socket
Point type Knurled Cup
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

Secure precision and reliability with our Set Screws Socket Knurled Cup Point Alloy Thermal Black Oxide 4-40 X 1/4. This socket set screw combines a knurled cup point for consistent contact with minimal marring and a socket drive for clean, tool-friendly installation.

Crafted from high-strength alloy steel, this screw uses a 4-40 thread and measures 1/4 inch in length. The thermally processed black oxide finish provides corrosion resistance and a low-glare appearance, making it ideal for sensitive or precision environments.

  • Drive type: socket / internal hex for secure tool engagement.
  • Point design: knurled cup point delivers even load distribution and reduces surface marring.
  • Material: alloy steel for strength and durability.
  • Finish: thermally black oxide for improved corrosion resistance and a professional look.
  • Size: 4-40 x 1/4 in.

Applications include fixtures, machinery, and assemblies where a flush, vibration-resistant fastening is required. The knurled cup point helps maintain grip under load, while the socket drive enables easy installation with common Allen wrenches.

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