Ensure optimal performance of your high-pressure spraying equipment with the Graco 117471 Machined Hexagonal Flat Head Screw. Precision-engineered from premium alloy steel, this essential component maintains consistent pressure and supports airless sprayer systems in demanding commercial environments. Its machined hexagonal head allows for precise torque application, preventing slippage during operation. Easy to install and compatible with a range of coating pumps and spray guns, it delivers secure fastening and long-lasting functionality, making it an indispensable part of routine maintenance for professional painters and contractors.
Designed to excel in demanding applications, this screw integrates seamlessly with high-pressure filtration systems to preserve fluid purity and prevent clogging. Its flat head profile ensures a flush fit, reducing material buildup in tight assemblies. Ideal for use in projects requiring consistent film thickness and smooth finishes, it upholds industry standards for professional coatings, delivering outstanding results with every spray.
$6.3The Graco 117471 Machined Hexagonal Flat Head Screw represents a critical fastening component engineered to exacting tolerances for fluid handling systems in industrial settings. Featuring a precision-machined hexagonal head with a clean flat surface, this screw facilitates optimal torque distribution and alignment in airless sprayer equipment. Its minimal dimensional variance of 0.45 x 0.65 x 0.45 inches ensures repeatable assembly conditions across multiple service intervals. Manufactured from high-grade stainless steel or custom alloys depending on application, the component integrates seamlessly with high-pressure manifolds and pump chambers. When deployed in advanced spray platforms, the screw contributes to consistent atomization profiles, reducing nozzle clogging and improving cycle-to-cycle repeatability. This design reliability underpins scalable production workflows that demand both speed and longevity in coating operations.
Installation of the Graco 117471 screw requires calibrated torque input to achieve optimal seal compression without risking thread galling. Recommended application procedures call for torque values in the 10 to 12 in-lb range when engaging against polymeric gaskets or metal seats. Engineers should verify that the mating bore tolerances align with the screw’s 0.45-inch shank diameter and 0.15-inch thread depth to ensure consistent clamping force. Integration into sprayhead assemblies benefits from precise flat head countersinking, which minimizes stress concentrations at the interface. Surface treatments, including phosphate conversion coatings, further enhance wear resistance and contribute to professional coatings compatibility during repeated maintenance cycles. Proper fastening practice supports improved pump efficiency through uniform load distribution and reduced micro-leak pathways.
The Graco 117471 screw’s geometry adheres to unified hexagonal sizing conventions for rapid tool engagement in assembly lines and field service. Each fastener features a flat head profile with a surface finish of 16 microinches or better to reduce abrasion against mating components. The screw is available in A2-70 stainless steel or high-strength alloy 4140, depending on corrosion or mechanical load requirements. Marine-grade finishes prevent galvanic corrosion when used in saline environments, while custom passivation processes extend service life. Thread form follows standard UNF class 2B with a 1/4-28 specification, providing ample thread engagement without risking self-locking from overstress. Coupled with precision heat treatment protocols, the part resists fatigue under cyclic loading and vibration common in diaphragm pump systems.
Comprehensive evaluation of the Graco 117471 screw includes tensile strength testing, demonstrating minimum yield values of 85 ksi in high-strength alloys and 30 ksi in standard stainless grades. Shear performance surpasses 40% of ultimate tensile strength, validating stability in multi-fastener flange joints under dynamic pressure spikes typical in high-pressure filtration modules. Service life simulations subject the fastener to over 1000 compression–release cycles at 2500 psi without significant preload loss. Corrosion resistance assessments in ASTM B117 salt spray environments confirm zero pitting after 500 hours for passivated parts. The flat head surface finish maintains co-planarity within 0.005 inches across the bearing face, enabling uniform load distribution and reducing micromotion that can degrade seal longevity over extended duty cycles. Real-world field trials in automated paint booths reaffirm consistent torque retention and minimal loosening.
When integrating the Graco 117471 into pump head assemblies or spray manifold reticulations, technicians should ensure that mating surfaces are clean, free of particulate, and lubricated with compatible anti-seize compounds. Periodic inspection of torque retention is advised, with ultrasonic inspection tools available to detect micro-cracks before catastrophic failure. Replacement intervals align with preventive maintenance schedules every 6 months or 2000 operational hours, whichever comes first. Cleaning protocols involving low-pressure solvent flushes preserve surface integrity without compromising material hardness. For extended service in abrasive or chemically aggressive media, consider specifying a secondary topcoat or specialized plating. Proper documentation of serial batch numbers enhances traceability in quality control systems and supports compliance with ISO 9001 standards in professional coating operations.
The Graco 117471 Machined Hexagonal Flat Head Screw offers a robust solution for critical fastening applications in fluid delivery equipment where performance and reliability are paramount. Its precise dimensions and material options support seamless integration with airless sprayer systems, pump heads, and filtration units. By adhering to specified torque values and maintenance regimens, end users can ensure consistent operational metrics, extend component life, and reduce downtime. The screw’s versatile design, coupled with rigorous testing protocols, underscores its role in optimizing pump efficiency and maximizing system uptime across diverse industrial spraying and coating environments.
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