#4-40 X 5/16" Button Head Cap Screws | Alloy Steel (100 / Pkg.)

Mutual ScrewSKU: 0405CSB

Price:
Sale price$12.38per 100( $0.12 each)
Pieces 100
Measurement type Inch
Thread size #4-40
Length 5/16
Material Alloy Steel
Finish Plain
Drive Hex 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

Discover the Cap Screws Button Socket Alloy Steel 4/40 x 5/16 — a compact, high-strength fastener engineered for precise assemblies. This button-head socket cap screw delivers a clean profile and reliable performance for electronics enclosures, machinery, and automotive applications.

Key Features

  • Material: Alloy steel for enhanced strength and durability.
  • Head Style: Button head (socket cap) for a sleek, low-profile finish.
  • Drive Type: Internal hex (Allen) drive for secure seating and easy installation.
  • Thread Size: 4-40 thread, a common fine-thread for small fastenings.
  • Length: 5/16 inch.
  • Recommended Uses: Electronics enclosures, precision machinery, and other assemblies where a neat, flush appearance matters.

Why Choose Alloy Steel Cap Screws

Alloy steel cap screws provide superior tensile strength, rugged performance, and long-lasting reliability in demanding environments. The button socket design minimizes protrusion while maintaining robust clamping force.

Specifications

  • Type: Cap screw, button socket head
  • Material: Alloy steel
  • Thread: 4-40
  • Length: 5/16 in
  • Drive: Internal hex (Allen)

Upgrade your fastener collection with these precision-capable, alloy steel cap screws. Order now to ensure a secure fit and dependable performance in your next project.

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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