Hex Head Cap Screws Grade 8 Steel Plain 7/8-9 x 4 1/4"" (PT)
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Hex Head Cap Screws Grade 8 Steel Plain 7/8-9 x 4 1/4"" (PT)

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[15 PKG] Hex Head Cap Screws Grade 8 Steel Plain 7/8-9 x 4 1/4"" (PT)

Mutual ScrewSKU: 8768CH8PBB
Price:
$96.95per 15( $6.46 each)
Pieces 15
Measurement type Inch
Thread size 7/8-9
Diameter 7/8
Length 4-1/4
Material Steel
Grade Grade 8
Finish Plain
Head style Hex
Threads per inch 9
Thread style Partially 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

Hex Head Cap Screws Grade 8 Steel Plain 7/8-9 x 4 1/4" (PT) are high-strength fasteners designed for demanding applications, delivering reliable torque and secure clamping in machinery, automotive, and structural assemblies.

Made from Grade 8 steel, these screws offer superior tensile strength and durability. The plain finish provides versatility across a range of projects without requiring a plated coating.

  • Material: Grade 8 steel for maximum strength and load-bearing performance.
  • Finish: Plain (uncoated) finish suitable for use in a variety of environments and for follow-on coatings as needed.
  • Head style: Hex head cap screw for use with standard wrenches or sockets.
  • Thread size: 7/8-9 UNC (coarse thread).
  • Length: 4 1/4" (4.25 inches).
  • Drive: External hex drive (requires a wrench or socket).
  • Applications: Ideal for heavy-duty fastenings in machinery, equipment frames, automotive assemblies, and structural components.

Pair these screws with compatible 7/8"-9 nuts and drilled, clearance holes designed for UNC threads. For best results, ensure full thread engagement and proper clamping by selecting the correct length for your application.

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