Graco 120091 Hex Washer Head Screw 1/4-20 x 2 Inch
$10.70
Available to Order
High-strength replacement screw for Graco airless sprayers, designed for secure fastening and corrosion resistance.
- Part Number: 120091
- Thread Size: 1/4-20
- Length: 2 inches
- Material: Hardened alloy steel with phosphate & nickel plating
- Compatible With: Graco Ultra Max 750, ProXChange PFX, HVLP ProMix Series
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Graco 120091 Hex Screw Overview
Compatible Machines
- Graco Ultra Max 750
- Graco ProXChange PFX
- Graco HVLP ProMix Series
- Graco Pressure-Control Valves
- Graco Seal Plate Assemblies
Product Description
The Graco 120091 Hexagonal Head Screw 1/4-20 x 2 is a precision fastener for high-performance airless sprayers. Designed for demanding pump assemblies, it supports high-pressure filtration systems, maintains seal integrity, and ensures consistent torque control.
- Thread Size: 1/4-20
- Length: 2 inches
- Material: Hardened AISI 4140 alloy steel with phosphate & nickel plating
- Hex Washer Head: Ensures uniform pressure distribution
- Thread-Forming Design: Eliminates need for pre-tapped threads
Key Features
- Precision-machined for high tensile strength
- Self-threading flutes minimize material displacement
- Optimized for high-pressure diaphragm and piston pump applications
- Maintains consistent fluid pressure and reduces leakage
- Corrosion-resistant for long-term service life
Installation & Maintenance Tips
- Use a calibrated torque wrench to prevent galling
- Apply PTFE or molybdenum disulfide anti-seize for easier removal
- Inspect and re-torque every 500 operational hours
- Keep washer interface clean from debris and coating residues
Frequently Asked Questions
It is made from hardened AISI 4140 alloy steel with a phosphate and nickel plating for corrosion resistance.
The screw is 1/4-20 with a length of 2 inches, compatible with multiple Graco sprayer assemblies.
Yes, it maintains seal integrity and torque consistency even under high-pressure conditions in professional airless sprayers.
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