Enhance your spray equipment performance with Graco 114813, a hexagonal head washer screw designed for precision assembly in demanding applications. Engineered to deliver consistent torque retention, this screw supports seamless operation within high-pressure environments, protecting your seals and fluid passages. Built from corrosion-resistant alloy, it stands up to chemical exposure and wear, making it ideal for professional coatings projects. Integrate this component to maintain optimal function and reliability in your airless sprayer systems.
Maintain peak efficiency by incorporating this part into your maintenance regimen, benefiting from streamlined repairs and minimized wear. The robust hex head design promotes accurate torque application and reduces slippage during tightening. Perfectly suited for tasks that demand high-pressure filtration performance, it ensures fluid integrity and prevents contamination in critical pathways. Trust in the longevity and stability of the Hexagonal Head Washer Screw to uphold your equipment’s productivity and safeguard investment in professional-grade spray solutions.
$6.3The Graco 114813 Hexagonal Head Washer Screw is engineered to meet rigorous standards in fluid handling and industrial spray systems. Featuring a machined hexagonal head with integrated flange washer, it ensures uniform bearing surface distribution under load. Precision manufacturing processes guarantee consistent dimensions to within 0.05 mm tolerance, optimizing alignment in pump manifolds and fittings. Designed for compatibility with proprietary Graco assemblies, it supports seamless integration in high-intensity operations across varied temperature ranges.
Mechanical characterization of this fastener underscores its exceptional tensile strength of 150,000 psi and fatigue endurance exceeding five million cycles at alternating loads. Fatigue crack-growth assessments and thermal cycling tests validate its performance under extreme conditions. Its standardized hex drive interface provides reliable torque application, reducing cam-out risk during installation in airless sprayer modules and other critical equipment. This focus on fastener durability ensures long service life even in vibrating environments.
Head geometry analysis reveals a 6-point socket engagement design measured at 0.5 in across flats with 1.4 in length, delivering efficient force transfer. The integrated flange washer head eliminates the need for separate components, reducing parts inventory. Optimized thread form and root profile minimize stress concentrations, enabling precise torque optimization and uniform clamp load across the sealing interface in pump housing and valve assemblies.
Constructed from quenched and tempered grade 12.9 high-tensile alloy steel, the screw achieves a hardness range of Rockwell C 40–45 for superior strength. A uniform zinc dichromate finish (5–8 µm) imparts corrosion resistance and extends service life by minimizing material wear during repeated assembly cycles. Enhanced plating integrity directly contributes to improved thread engagement and seal longevity, reducing maintenance frequency in harsh or corrosive fluid environments.
In practical applications such as pump manifolds, fluid distribution blocks, and valve bodies, this screw secures mounting plates under pressures up to 5,000 psi. Its use in professional coatings operations ensures a robust seal in airless sprayer equipment and high-pressure filter housings. By preventing internal bypass and leakage, it bolsters pump efficiency and maintains consistent spray patterns essential for uniform film thickness in coating systems.
Performance metrics include static shear load testing up to 2,500 pounds and dynamic vibration assessments across 20 Hz to 2,000 Hz frequency ranges. High-pressure filtration trials confirm that the screw sustains axial loads during rapid pressure fluctuations without loosening or galling. Such resilience in demanding hydraulic circuits makes it a preferred choice for high-pressure filtration and fluid control applications requiring uncompromised mechanical integrity.
Manufacturing tolerances follow ASME B18.2.1 and ISO 898-1 standards, with maximum thread runout of 0.03 mm and surface roughness not exceeding Ra 1.6 µm. Detailed quality control procedures include dimensional inspection, hardness verification, and plating thickness measurement. This level of precision engineering reduces installation torque variability, enabling predictable clamp loads and consistent sealing performance across production and maintenance cycles.
Installation recommendations emphasize the use of calibrated torque tools rated for at least 15 ft-lb alongside compatible thread compounds or dry-film lubricants. A proper tightening sequence in manifold and valve assemblies prevents uneven clamping and potential gasket blowout. Preload monitoring and periodic torque verification help maintain seal integrity and extend component life in pumps and fluid control systems.
Routine maintenance should include inspection of the hex head profile, flange washer surface, and plating condition. Replacement is recommended after 1,000 operational hours or after any major pump servicing. Consistent torque retention enhances seal longevity in O-rings and gaskets, reducing downtime. Aligning with Graco’s torque specifications ensures reliable compression and prevents fluid leaks that can compromise system safety.
Overall, the Graco 114813 Hexagonal Head Washer Screw is a cornerstone fastener in heavy-duty spraying, coating, and fluid control assemblies. Its robust material composition, integrated washer head design, and validated performance metrics support demanding industrial applications. When installed in systems requiring airless sprayer operation and professional coatings accuracy, this fastener contributes significantly to pump efficiency, high-pressure filtration reliability, and extended operational lifetime.
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