Graco 115498 Slot Hex Washer Screw

Graco 115498 Slot Hex Washer Screw — genuine OEM fastener used to secure covers/control components on select Graco sprayers. Choose OEM to maintain proper fit and vibration resistance.

Slotted hex-washer head for low-profile seating
Direct replacement; model-specific locations
Ideal for control/front cover assemblies

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Description

Overview & Fitment Details

Compatible Machines

Graco 390 Airless Sprayer (select 110V/230V variants)
Graco 290 Classic / 390 Classic (PC) — Stand & Hi-Boy variants
Graco Magnum ProX17 (Stand)
Graco Magnum ProX19 (Stand)
Graco ProLTS 170 / ProLTS 190 (Cart)
Graco RTX 1500 Electric Texture Sprayer

About the Graco 115498 Slot Hex Washer Screw

The Graco 115498 is a slotted hex-washer head machine screw used to secure covers and control components on popular Graco sprayers. Using the correct OEM fastener helps maintain alignment, vibration resistance, and safety.

Quick Specs

Part Number	115498
Type / Head	Machine Screw, slotted hex-washer head
Typical Location	Pressure/control cover & front cover assemblies (model-dependent)
Genuine OEM	Yes — Graco Original

Fitment & Installation Tips

Match the screw’s reference item number in your model’s parts diagram before ordering.
Do not overtighten; follow torque feel and re-check after initial run-time.
Replace missing/damaged screws in sets when they secure the same cover panel.

Frequently Asked Questions

Check your sprayer’s parts manual diagram for the fastener list and ensure the reference number calls out 115498. If your model is listed above, it commonly uses this screw in the cover/control area.

It’s commonly used in the pressure control/front cover assembly to secure panels around the control board or manifold—exact placement varies by model.

Yes. Graco 115498 is a genuine OEM machine screw designed to meet factory fit and durability requirements.

Those models more commonly call out other fasteners (e.g., 115723) in their manuals. Always verify your specific model’s parts list before purchase.

Use a correct-size driver, start threads by hand to avoid cross-threading, and bring fasteners down evenly when securing covers.