#4-40 X 3/8" Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel Zinc Plated (100 / Pkg.)

★★★★★ 4.4 131 reviews

US$12.10
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US$12.10
Price when purchased online
Free shipping Free 30-day returns

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Product details

Management number 242040553 Release Date 2026/07/19 List Price US$12.10 Model Number 242040553
Category

Cap Screws Flat Socket Alloy Steel Zinc 4/40 X 3/8 are high-strength fasteners engineered for secure, flush installations in electronics, machinery, and precision assemblies. The flat socket head provides a clean, professional finish while delivering solid torque transfer for demanding applications.

Key Features

  • Material: Alloy steel for strength and durability
  • Finish: Zinc-plated for corrosion resistance
  • Head style: Flat socket cap screw for a low-profile finish
  • Drive type: Hex/Allen drive for precise tightening
  • Size: Thread size 4-40
  • Length: 3/8 in

These screws are suitable for a wide range of light to medium-duty fastening tasks where a secure, unobtrusive fastener is required. The combination of alloy steel strength and zinc protection helps maintain performance in challenging environments.

Specifications

  • Material: Alloy steel
  • Finish: Zinc-plated
  • Head style: Flat socket cap screw
  • Drive: Hex socket
  • Thread: 4-40
  • Length: 3/8 in

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131 ratings | 54 reviews
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