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Graco 105324 Hex Head Cap Screw

The Graco 105324 Screw Cap Hex HD is a heavy-duty fastener built for high-pressure applications, ensuring strong, reliable connections in demanding spray systems.

  • OEM Part #105324 – genuine Graco heavy-duty component
  • Provides secure fastening under vibration and load
  • High-strength alloy construction for durability
  • Ideal for pumps and high-pressure spray assemblies

$12.26
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Detailed Overview – Graco 105324 Screw Cap Hex HD

The Graco Screw Cap Hex HD (Part # 105324) is a heavy-duty fastening solution engineered for the most demanding high-pressure spray systems. Featuring a robust hex-head design and precision-machined materials, this cap screw delivers exceptional clamping force, reliable sealing, and long-term durability in harsh industrial environments.

Key Features

Attribute Details
OEM Part Number 105324
Design Style Hex-cap screw, heavy-duty (‘HD’) version rated for high-pressure assemblies
Function Securely fastens pump housings, manifold blocks and components subject to high vibration and fluid pressure
Material & Construction High-strength alloy steel with precision threads, engineered for extended service life under cyclic loads
Application Ideal for use in heavy-duty airless spray systems, pump assemblies and high-pressure fluid delivery systems

Installation & Maintenance Tips

Ensure reliable performance and longevity of this cap screw by following these guidelines:

  • Disconnect power and relieve system pressure before beginning maintenance or installation.
  • Clean the mating surfaces and threads; remove any residual coatings, debris or corrosion.
  • Select the correct socket or wrench size that fits the hex head to avoid rounding off the cap.
  • Tighten the screw to the specified torque for your assembly—do not overtighten, which could damage threads or components.
  • During routine inspections, check for signs of loosening, corrosion, thread wear or deformation—replace the cap screw if any compromise is visible.

Frequently Asked Questions

The ‘HD’ designation indicates reinforced design and materials suited for elevated pressure, cyclic loads and high-stress fastening scenarios compared to standard versions.

It is designed for heavy-duty Graco systems and pump assemblies—check your equipment’s manual or parts breakdown to confirm correct fitment for your model.

Replace the cap screw if you notice repeated loosening, visible distortion of the hex head or threads, corrosion, or failure to maintain proper preload—timely replacement helps avoid component damage or seal failure.

Using a genuine, heavy-duty part like the 105324 and following correct installation practices enhances the integrity and performance of your equipment—minimizing downtime and supporting reliable operation.

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