Graco 120089 Screw Hex 3/8-16 x 1.75
$10.70
In Stock
Durable replacement screw for Graco airless sprayers, engineered for secure fit and corrosion resistance.
- Part Number: 120089
- Thread Size: 3/8-16 UNC
- Length: 1.75 inches
- Material: High-strength alloy steel with zinc phosphate finish
- Compatible With: Graco Ultra Max II, King 395, Magnum ProX19
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Graco 120089 Hex Screw Overview
Compatible Machines
- Graco Ultra Max II 695
- Graco Ultra Max II 595
- Graco King 395
- Graco Mark V ProContractor
- Graco Magnum ProX19
Product Description
The Graco 120089 Screw Hex 3/8-16 x 1.75 is a durable, precision-engineered fastener for high-performance airless sprayer systems. Crafted from premium alloy steel with a zinc phosphate finish, it provides corrosion resistance and secure fastening in pump assemblies and manifold junctions.
- Hex head design: Efficient tool engagement
- Thread: 3/8-16 UNC for reliable connections
- Length: 1.75 inches for optimal fit
- Material: High-strength alloy steel, corrosion-resistant
Key Features
- Maintains preload under high-pressure conditions (up to 3,000 psi)
- Precision-engineered threads for leak-free sealing
- ANSI-compliant hex head for consistent torque application
- Durable zinc phosphate finish for extended service life
- Used in pump housings, diaphragm units, and filter brackets
Maintenance Tips
- Inspect threads and hex head for wear every 500 hours
- Apply PTFE or molybdenum disulfide lubricants for smooth installation
- Follow manufacturer torque specifications to prevent over-tightening
- Replace at signs of corrosion, deformation, or thread fatigue
Frequently Asked Questions
The screw has a 3/8-16 UNC thread, suitable for multiple Graco airless sprayer models.
It is made from high-strength alloy steel with a zinc phosphate finish for corrosion resistance.
Yes, it maintains preload and ensures leak-free performance in systems up to 3,000 psi.
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