Hex Head Cap Screws Grade 8 Steel Plain Fine Thread 5/8-18 x 5 1/2"" (PT)
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Hex Head Cap Screws Grade 8 Steel Plain Fine Thread 5/8-18 x 5 1/2"" (PT)

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[25 PKG] Hex Head Cap Screws Grade 8 Steel Plain Fine Thread 5/8-18 x 5 1/2"" (PT)

Mutual ScrewSKU: 6388CH8PBB
Price:
$98.00per 25( $3.92 each)
Pieces 25
Measurement type Inch
Thread size 5/8-18
Diameter 5/8
Length 5-1/2
Material Steel
Grade Grade 8
Finish Plain
Head style Hex
Threads per inch 18
Thread style Partially Threaded
Weight 13.28 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 high-load assemblies with our Hex Head Cap Screws Grade 8 Steel Plain Fine Thread 5/8-18 x 5 1/2" (PT). Engineered for maximum strength and reliable performance in demanding machinery, automotive, and structural applications.

  • Grade 8 steel core delivers exceptional tensile strength and wear resistance.
  • Hex head design allows fast, tool-friendly tightening with standard wrenches or sockets.
  • Plain finish (unplated) for versatile use where corrosion resistance is not the primary concern or where a subsequent coating is planned.
  • Fine thread 5/8-18 UNF provides precise clamping and smooth engagement for thinner materials.
  • Length 5 1/2 inches with standard 5/8"-18 thread, suitable for a wide range of mounting and joinery needs.

Applications: Ideal for heavy-duty fastenings in machinery, automotive assemblies, equipment frames, and industrial fixtures that require high strength and reliability.

Tip: For proper installation, consult the relevant torque specifications for Grade 8 fasteners to ensure secure clamping without over-tightening.

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800-222-0324

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