The Multiquip 306A0100500250 is a genuine OEM Hex Screw 1/2" 12 x 2-1/2" LW designed for MQ Diaphragm Pump series equipment. As an authorized OEM part, it meets the exact dimensional and material specifications set by Multiquip, ensuring the fastener seats and torques correctly in the application. This is a direct replacement sourced from the original manufacturer, matched to the MQ-D306HA and the broader MQ Diaphragm Pump family. When you need to maintain structural integrity and a properly sealed assembly, starting with the correct OEM fastener matters.
Key Features
- Correct Grade and Geometry — Manufactured to the exact thread pitch, shank length, and head profile specified for MQ Diaphragm Pump assemblies, so the fastener engages fully without cross-threading or improper seating.
- Lock Washer Included Configuration — The LW designation confirms this screw is supplied with a lock washer, maintaining clamp load under the vibration loads typical of diaphragm pump operation.
- Genuine OEM Sourcing — Produced to Multiquip's material and hardness standards, not a generic substitute, so you get the tensile strength appropriate for the joint being fastened.
- Confirmed Fitment for MQ Diaphragm Pumps — Verified for the MQ-D306HA and MQ Diaphragm Pump series, eliminating guesswork when ordering replacement fasteners during service.
- Preserves Assembly Integrity — Using the specified fastener prevents under- or over-torque conditions that can lead to housing distortion, fluid leaks, or premature gasket failure on a diaphragm pump.
A hex screw of this type serves as a structural fastener holding pump housing panels, covers, or mounting flanges together under the continuous vibration and fluid pressure of diaphragm pump operation. Because diaphragm pumps generate repetitive pressure pulses with each stroke, fasteners in these assemblies must maintain consistent clamping force to prevent joint loosening and the leaks that follow. Using a fastener with the correct thread specification, shank length, and lock washer ensures the joint remains tight through extended service cycles and does not compromise the pump's sealing surfaces.
Have questions about fitment or need help confirming the right part for your equipment? Contact DHS Equipment — our team is ready to help you get the correct part the first time.
Part Details
| Part Number | 306A0100500250 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hex Screw 1/2" 12 x 2-1/2" LW |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Diaphragm Pumps | MQ-D306HA |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
