1/4-20 X 3/8" Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)
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1/4-20 X 3/8" Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

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1/4-20 X 3/8" Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

Mutual ScrewSKU: 1406CSFBB
Price:
$13.72per 100( $0.14 each)
Pieces 100
Measurement type Inch
Thread size 1/4-20
Length 3/8
Material Alloy Steel
Finish Thermal Black Oxide
Drive Hex Socket
Head style Flat
Thread style Fully Threaded
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 Flat Socket Alloy Thermal Black Oxide 1/4-20 x 3/8 is a high-strength fastening solution designed for precision assemblies in mechanical, automotive, and industrial environments. The combination of alloy steel and a thermal black oxide finish delivers reliable performance with a discreet, low-profile appearance.

Key features

  • Material: Alloy steel for strength and durability
  • Finish: Thermal black oxide for a non-reflective, protective coating and improved wear
  • Size: 1/4-20 thread (UNC)
  • Length: 3/8 inch
  • Head/Drive: Flat socket cap screw with hex socket drive for consistent torque transfer

Why choose these fasteners

  • High-strength fastening: Cap screws are designed to withstand demanding loads in assemblies
  • Low profile: Flat socket head sits flush in recessed or tight spaces
  • Easy to install: Compatible with standard hex keys (Allen wrenches) for quick, secure tightening
  • Appearance and protection: Subdued black oxide improves aesthetics and guards against minor wear

Applications

Ideal for equipment housings, machinery, consumer electronics enclosures, automotive assemblies, and DIY projects where a reliable, compact fastener is required.

Specifications

  • Thread size: 1/4-20 UNC
  • Length: 3/8 in (9.5 mm)
  • Material: Alloy steel
  • Finish: Thermal black oxide
  • Drive type: Hex socket
  • Head type: Flat socket cap screw

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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