The Multiquip 3053816 is a genuine OEM Hex Screw 3/8"-16UNC 1-3/4 designed for Multiquip diaphragm pump models D306 and MQ-D305. As a factory-sourced component, it meets the exact thread specification and dimensional tolerances required by the original assembly, ensuring correct seating and clamping load on your pump. This screw is a direct OEM replacement, verified to the same standards as the hardware installed at the factory. Confirm your model code before ordering to ensure compatibility with your specific diaphragm pump configuration.
Key Features
- Exact Thread Specification — 3/8"-16UNC thread form matches the original tapped bore dimensions, delivering proper engagement depth and clamping force without risk of cross-threading or stripping.
- Genuine OEM Sourcing — Produced to Multiquip's original hardware specification, this screw carries the same material grade and finish as the fastener installed at the factory.
- Confirmed Pump Fitment — Verified for Multiquip diaphragm pump models D306 and MQ-D305; always cross-reference your model code before installation.
- Structural Integrity Under Pump Loads — A correctly torqued hex screw maintains housing alignment and joint integrity; a worn, stripped, or incorrect fastener can cause pump housing separation or fluid leaks during operation.
- Drop-In Installation — Matching head geometry allows a standard hex wrench or socket to be used, with no special tooling required beyond what is already on the bench during routine pump service.
Hex screws like the part are structural fasteners used to clamp pump housing sections, inspection covers, or component mounting flanges together on diaphragm-style pumps. Maintaining the correct thread size, length, and material grade is critical — an undersized or incorrect replacement fastener can back out under vibration, reduce clamping load on sealing surfaces, or allow pump housing sections to shift, leading to leaks or accelerated wear on adjacent components. Replacing worn or damaged hardware with the correct OEM specification fastener restores the assembly to its designed clamping torque and keeps the pump operating as intended.
Part Details
| Part Number | 3053816 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hex Screw 3/8"-16UNC 1-3/4 |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Diaphragm Pumps | D306 |
| MQ Diaphragm Pumps | MQ-D305 |
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.
