The Multiquip 3053401 is a genuine OEM Hex Screw 3/4" x 1" 16UNF designed for MQ-D305 and D306 diaphragm pump models. As a factory-sourced fastener, it meets the exact thread specification and dimensional tolerances required for correct assembly on these machines. Sourcing the correct screw by part number ensures the fastener seats and torques properly without risk of thread damage or joint failure. DHS Equipment supplies this Multiquip 3053401 direct, so you get the right part the first time.
Key Features
- Exact Thread Specification: — Cut to 16UNF (Unified National Fine) thread pitch, matching the tapped receivers on MQ diaphragm pump assemblies for full thread engagement at rated torque.
- Genuine OEM Fastener: — Sourced directly from Multiquip, confirming correct material grade, head geometry, and coating for this application — not a generic hardware substitute.
- Direct Fitment for MQ-D305 and D306: — Verified for use on MQ-D305 and D306 diaphragm pump models, dropping in without rework or thread chasing.
- Structural Joint Integrity: — A correctly spec'd hex screw maintains clamping load across pump covers and flanged connections, preventing leaks and loosening under pump vibration.
- 3/4" x 1" Dimensioned for the Application: — The 3/4" diameter and 1" length are matched to the fastened joint depth, preventing under-engagement or bottoming out in blind holes.
A hex screw is a structural fastener that clamps two or more components together by converting rotational torque into clamping force through its threaded shank. On a diaphragm pump, hex screws are commonly used to secure pump covers, valve housings, and flanged connections — areas that are subject to continuous vibration, fluid pressure, and thermal cycling. When a fastener of the wrong thread pitch, diameter, or grade is used, it can strip threads, fail to hold torque, or introduce leak paths at critical sealing surfaces, leading to pump performance loss or fluid escape.
Questions about fitment or compatibility? Contact DHS Equipment to confirm this part is right for your machine before ordering.
Part Details
| Part Number | 3053401 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hex Screw 3/4" x 1" 16UNF |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Diaphragm Pumps | MQ-D305 |
| MQ Diaphragm Pumps | D306 |
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.
