#4-40 X 1/2" Button Head Cap Screws | Tamper Resistant | Pin-In Socket Drive | 18/8 Stainless Steel (100 / Pkg.)
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#4-40 X 1/2" Button Head Cap Screws | Tamper Resistant | Pin-In Socket Drive | 18/8 Stainless Steel (100 / Pkg.)

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#4-40 X 1/2" Button Head Cap Screws | Tamper Resistant | Pin-In Socket Drive | 18/8 Stainless Steel (100 / Pkg.)

Mutual ScrewSKU: 0408BPSMYW
Price:
$41.85per 100( $0.42 each)
Pieces 100
Measurement type Inch
Thread size #4-40
Length 1/2
Material 18/8 Stainless Steel
Grade 18/8
Finish Plain
Drive Pin-In 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 Head Pin-In Socket provide secure, low-profile fastening for precision assemblies in industrial equipment and control systems. This specification sheet details a 4-40 UNC, 1/2" length fastener crafted from 304-grade stainless steel with pin-in-socket retention and socket drive for vibration-prone applications.

Specs

  • Dimensions: Length: 1/2"
  • Material Grade: 304 Stainless Steel
  • Drive Type: Socket Drive (internal hex)
  • Thread Type: 4-40 UNC

Features

  • Pin-in-socket retention: Secures the screw during assembly, reducing backout risk in vibration-prone electronics enclosures, panels, and machinery assemblies.
  • Socket Drive: Internal hex drive enables precise torque control and a flush finish, minimizing tool marks in tight cavities.
  • Low-profile button head: Enables unobtrusive mounting with high clearance in compact enclosures and panel interfaces.
  • Corrosion resistance: 304-grade stainless steel delivers reliable performance in humid, washdown, and chemical exposure environments.
  • Compatibility: Standard 4-40 hardware compatibility supports seamless integration with existing fastener inventories and automation tooling.

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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