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Graco 100664 Screw Set Sch

The Graco 100664 Screw Set (SCH) is a genuine OEM fastener used in select ThermoLazer and ProMelt systems. Designed to keep components tightly secured and aligned for reliable operation.

  • OEM Part #: 100664
  • Used In: ThermoLazer, ProMelt, and Glass Bead Dispense Kits
  • Function: Maintains clamp load & prevents vibration loosening
  • Quality: Genuine Graco hardware for secure, long-term fitment

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Compatible Machines

The Graco 100664 Screw Set (SCH) appears in the official parts lists for the following Graco systems/kits. Always verify against your unit’s parts breakdown by model and serial range.

  • ThermoLazer Pavement Marking Systems (listed in ThermoLazer parts breakdowns)
  • ThermoLazer ProMelt units (referenced in ProMelt parts lists)
  • Glass Bead Dispense Kits for ThermoLazer (appears in kit parts list)

About Graco 100664 Screw Set (SCH)

The Graco 100664 is a genuine OEM set screw used to secure components in select ThermoLazer assemblies and related accessories. Correct hardware helps maintain clamp load, alignment, and vibration resistance—supporting reliability and seal integrity during operation.

Quick Specs

OEM Part # 100664
Part Type Screw, Set, SCH (set screw used in specific assemblies)
Typical Use Secures shafts/brackets/kit components; helps prevent movement under vibration.
Material Not explicitly specified in Graco docs for this PN; use OEM replacement only.
Where Found ThermoLazer parts lists, ProMelt assemblies, Glass Bead Dispense Kit breakdowns.

Fitment Guidance

  • Check your exact model/serial parts diagram and confirm 100664 is listed before ordering.
  • Replace as part of any assembly/kit where the original set screw is damaged or missing.
  • Use proper thread preparation and torque per your machine manual.

Why Choose OEM Hardware

  • Correct dimensions & thread for the intended assembly
  • Consistent clamping force to reduce vibration-related loosening
  • Maintains alignment of connected parts for longer service life

Frequently Asked Questions

Possibly. This part is listed in ThermoLazer and ProMelt documentation and in Glass Bead Dispense Kits. Verify by opening your model’s parts list and confirming 100664 appears for your serial range.

It’s part of Graco’s internal naming and is commonly seen with set screws in kit/assembly contexts. Use the exact OEM part number to avoid mismatches.

Torque settings depend on the exact assembly. Refer to your machine’s service section or the assembly drawing where 100664 is used. If not listed, follow standard practice for that thread size and material, using threadlocker only if the manual calls for it.

Not recommended. OEM hardware ensures the correct grade, length, and thread pitch for the assembly. Substitutions can lead to vibration loosening, misalignment, or damage.

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