Graco 121797 Socket Head Cap Screw
$3.30
In Stock
A genuine Graco 121797 socket-head cap screw used for secure fastening in high-pressure sprayer assemblies. Ideal for OEM repairs where strength and reliability are critical.
- High-strength steel OEM screw
- Socket (Allen) cap head
- Used in Graco plural-component & fluid-handling systems
- Reliable torque retention for critical components
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Genuine OEM Part
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Graco 121797 – Socket-Head Cap Screw
This is a genuine Graco OEM socket-head cap screw designed for secure, high-strength fastening in fluid- and structural assemblies. Ideal for use in critical high-pressure components where reliable torque retention is needed.
Compatible Machines
- Graco XM Plural-Component sprayers
- Graco Xtreme Mix systems
- Graco Reactor spray-foam rigs
Technical Specifications
| Part Number | 121797 |
|---|---|
| Head Style | Socket (Allen) cap |
| Material | High-strength steel (OEM) |
| Typical Use | Fastening manifold plates, pump sections, or structural components |
Benefits & Use Cases
- Provides secure clamping to prevent loosening under vibration or pressure cycling
- OEM-grade material ensures durability and proper torque retention
- Allen head allows for compact installation in tight assemblies
Installation Guidelines
- Clean both mating surfaces before installing the screw.
- Lubricate or apply threadlocker if recommended by your parts manual.
- Hand-thread first, then tighten using an Allen key to the torque specification in your service manual.
- After running the system, re-check the torque to account for any settling.
Frequently Asked Questions
This screw is used to fasten critical components (such as manifolds or pump sections) where high-strength, vibration-resistant hardware is required.
Reuse depends on your torque-angle method and condition of the threads. If the screw was over-torqued or shows thread damage, replace it with a new OEM part.
Refer to your machine’s service manual for the specific torque spec. If unavailable, consult Graco’s OEM torque chart for socket-head cap screws.
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