Graco 120405 Hexagonal Head Washer Machined Screw
$5.25
In Stock
The Graco 120405 Hexagonal Head Washer Machined Screw is a durable, corrosion-resistant fastener designed for high-pressure sprayer systems. Perfect for maintaining secure and leak-free assemblies.
- Material: 17-4 PH Stainless Steel
- Thread: 1/4"-20 UNC, 20 TPI
- Washer Head: 12 mm bearing surface
- Compatible Machines: Graco Ultra Max II 490, 695, 1095, Mark V ProContractor
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Genuine OEM Part
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Graco 120405 Screw – High-Performance Fastener
The Graco 120405 Hexagonal Head Washer Machined Screw is engineered for precision, durability, and optimal performance in high-pressure fluid systems and airless sprayer assemblies.
Compatible Machines
- Graco Ultra Max II 490
- Graco Ultra Max II 695
- Graco Ultra Max II 1095
- Graco Mark V ProContractor
Key Features
- Material: 17-4 PH stainless steel, hardness ≥ Rockwell C28
- Thread: 1/4"-20 UNC, 20 TPI rolled thread for fatigue resistance
- Corrosion-resistant: Passivated stainless steel for long-term reliability
- Washer Head: 12 mm bearing surface for even load distribution
- Applications: Spray-pump manifolds, filter housing lids, pressure regulator assemblies
Operational Benefits
- Enhances pump efficiency by maintaining rigid assembly integrity
- Reduces fluid leaks with optimized thread and washer-head interface
- Supports high-viscosity materials like epoxies, urethanes, and industrial coatings
- Facilitates fast assembly and maintenance with standard 10 mm socket tools
Frequently Asked Questions
It is made of 17-4 PH stainless steel with hardness ≥ Rockwell C28, offering high corrosion resistance and tensile strength.
Compatible with Graco Ultra Max II 490, 695, 1095, and Mark V ProContractor models.
Apply an anti-seize compound compatible with stainless steel and torque to 10–12 Nm to ensure proper clamp force.
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