The Graco 15W044 Screw, HHC, M12 x 70 is engineered for seamless integration with Graco sprayer systems and provides exceptional fastening strength for demanding industrial settings. Crafted from premium stainless steel, this hexagon head cap screw ensures robust performance under rigorous conditions. Its precise threading and corrosion-resistant finish optimize reliability in applications such as airless sprayer maintenance and high-pressure filtration, delivering consistent results batch after batch.
Installation is straightforward thanks to its hexagon head design that allows secure tightening with standard wrenches and significantly reduces installation time on the work bench. Specifically tailored for high-performance spray applications, this screw maintains torque stability even in extreme pressure cycles. Its seamless fit helps preserve system integrity and supports consistent atomization across a wide range of fluid viscosities. Ideal for use alongside professional coatings machinery, the Graco 15W044 enhances operational uptime and reduces maintenance intervals in fast-paced industrial processes.
$10.1Graco 15W044 Screw, Hhc, M12 X 70 at the forefront of precision fastening in fluid delivery and high-pressure equipment. Manufactured as an original Graco component, this hex-head cap screw meets stringent tolerances demanded by professional pump assemblies. Crafted from corrosion-resistant stainless steel A2, the M12 x 70 configuration balances thread engagement and mechanical strength to optimize seal integrity under dynamic loads. Ideal for integration into modern airless sprayer manifolds and industrial coatings stations, it supports robust performance in high-pressure filtration loops. Its standardized pitch and head dimension ensure compatibility across Graco spray systems and related OEM platforms.
This screw’s performance under cyclical loading and vibration is critical for maintaining consistent torque retention over extended intervals. Precision-machined threads minimize galling while enabling straightforward assembly in dense pump housings. Surface finishes meet industrial grit-blasting specifications to accommodate secondary coatings and fluid sealing compounds without compromising throughput. By maintaining uniform bearing stress against mating flanges, it contributes directly to pump efficiency and operational stability. Its compatibility with precision washers and sealants ensures a tight interface with seals, preventing backflow in pressurized systems and preserving overall system integrity.
The Graco 15W044 screw is manufactured from A2 grade stainless steel, offering a robust combination of tensile strength and environmental resistance. Heat-treated to a minimum hardness of 320 HV, the alloy withstands abrasive media and solvent-based coatings employed in professional coatings operations. Uniform thread geometry ensures smooth engagement, reducing micro-galvanic cells that can initiate pitting. Its smooth surface finish also assists in high-pressure filtration circuits, minimizing particle entrapment. When installed with compatible torque settings, this component delivers reliable performance in demanding applications where chemical inertness and mechanical resilience are paramount.
The hexagonal head of the M12 x 70 screw is engineered to maximize surface contact for uniform load distribution. Its head height and underhead bearing surface comply with DIN 912 standards, enabling consistent clamp force application. Partially threaded shank allows for precise compression of mating components, reducing the need for additional spacers. Chamfered geometry at the root of the thread minimizes stress concentration points, enhancing fatigue life in reciprocating pump plungers and rotating assemblies. Together with matched washers, the screw head profile guarantees predictable torque-tension relationships for critical sealing flanges.
Tailored for integration into Graco’s range of fluid conveyance modules, this screw serves as a foundational fastener in diaphragm pumps, piston pumps, and spray gun assemblies. Its consistent thread engagement supports repeatable maintenance procedures in high-cycle operations. Within professional coatings systems, secure fastener joints are essential to maintain alignment of pump heads, valves, and filter assemblies. By contributing to precise flow paths and eliminating misalignment risks, the screw plays a crucial role in ensuring uniform spray patterns, efficient atomization and defect-free finishes for both solvent-based and waterborne coatings.
Optimal installation entails applying calibrated torque values between 40 and 50 Nm, as verified by torque-wrench protocols. Pre-assembly application of compatible lubricants or light anti-seize compounds helps achieve consistent clamping force while reducing thread friction. When utilized with flat or conical washers, the screw head exerts even pressure on sealing gaskets, enhancing leak prevention. Scheduled inspections should verify torque retention and inspect for signs of corrosion or wear. Proper maintenance strategies, combined with quality fasteners, extend component life cycles and elevate the reliability of high-pressure pump assemblies.
Laboratory testing confirms that the M12 x 70 screw maintains clamp load within 5 percent of target after thermal cycling between –20 °C and 80 °C. Tensile strength exceeds 600 MPa, while yield strength remains above 200 MPa, aligning with DIN 267-27 standards. Fatigue testing under reversed bending loads validates its capacity to withstand millions of cycles in reciprocating equipment. The precise hex-head geometry also facilitates reliable torque feedback in automated screwdrivers, ensuring that each fastener installation contributes predictably to overall system endurance.
When assembled in accordance with manufacturer specifications, Graco’s HHC screw supports significant gains in seal integrity and component lifespan. Its resistance to chloride-induced corrosion helps avoid premature failures in solvent-rich environments. Combined with precision washers and dynamic seals, the interface maintains uniform compression force even at elevated pressures, contributing to improved seal longevity. By minimizing maintenance intervals and lowering downtime, the robust design of the 15W044 screw reinforces the long-term reliability of fluid handling equipment in both industrial spray applications and continuous production lines.
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