Graco 109555 Cap Screw (SCH 6‑32 UNC‑3A)
The Graco 109555 is a genuine OEM cap screw used in specified Graco equipment – designed to secure key components and maintain structural integrity.
Compatible Machines
This cap screw is known to appear in the parts lists of the following machine families:
- Graco Ultra Max II 1095 series (Hi‑Boy/Standard) :contentReference[oaicite:1]{index=1}
- Graco Ultra Max II 1595 series (Hi‑Boy/Standard) :contentReference[oaicite:2]{index=2}
- Graco TexSpray Mark V / Mark VII / Mark X (hi‑pressure electric airless sprayers) :contentReference[oaicite:3]{index=3}
Note: Always check your machine’s exact model and consult the official parts list to verify that part 109555 is the correct replacement for your unit.
Key Specifications
| Specification |
Details |
| Part Number |
109555 |
| Description |
Screw, Cap (SCH 6‑32 UNC‑3A) – OEM Graco fastener |
| Primary Use |
Secures internal assemblies, covers or structural components in compatible Graco equipment |
| Material / Finish |
Factory‑specified Graco grade (exact finish may vary by model) :contentReference[oaicite:4]{index=4} |
Why Choose This OEM Part?
Using the genuine Graco 109555 cap screw ensures you maintain factory‑spec fit, correct thread engagement, and reliable torque retention which helps avoid leaks, misalignment, or premature wear.
- Correct thread size & specification for listed machines.
- Ensures compatibility with surrounding assemblies and structural components.
- Helps maintain warranty and service‑integrity when replacing worn hardware.
Installation & Maintenance Tips
- Depressurize the machine before removing hardware.
- Match the original screw’s length, head style, and thread engagement as shown in the machine’s exploded parts diagram.
- Apply thread‑locker or sealant if required by the model’s service instructions.
- Torque to the specification listed in your unit’s manual — do not over‑tighten and risk damaging threads.
- After installation run a brief test under operational conditions to verify structural integrity and absence of vibration looseness.
Frequently Asked Questions
The cap screw appears in parts manifests for Graco Ultra Max II 1095/1595 and the Mark V/Mark VII/Mark X series. Refer to your machine’s serial/model list and parts diagram to ensure correct match.
While the size may appear similar, using a non‑OEM screw can risk thread compatibility, correct head clearance or torque‐retention — so sticking with the genuine Graco part is strongly recommended.
Inspect during regular maintenance intervals—especially if the machine has been subject to vibration, heavy use, or maintenance cycles. Replace if the screw shows wear, thread damage or signs of loosening.
Need help confirming compatibility with your exact machine version? Provide your model and serial number and we’ll check the parts manual for you.
