

High-strength screw designed for secure assembly in professional airless sprayer systems.
| Machine Models |
|---|
| Graco 390 PC Pro |
| Graco 395 PC Pro |
| Graco Mark V |
| Graco Mark VII |
| Graco ProX19 |
| Graco ProX17 |
Engineered for reliable assembly in high-pressure spray systems, the Graco 120557 Screw 3/8-16UNC-2A x 6.00 ensures secure mounting and leak-free performance in professional coatings equipment.
Durable and versatile, this screw is ideal for fluid regulators, pump manifolds, and high-pressure filtration systems. CNC-machined threads, heat-treated alloy steel, and corrosion-resistant plating ensure longevity even in abrasive environments.
Crafted from high-strength alloy steel with quench and temper treatment, the screw withstands high-pressure cycles and repeated maintenance operations. Zinc plating provides corrosion resistance, extending component life in industrial coating systems.
Precision threading guarantees uniform clamping in pump assemblies, while a hex socket head allows controlled torque application. Recommended torque: 15–18 lbf·ft. Smooth chamfered threads minimize cross-threading and ensure leak-free connections in high-pressure circuits.