The Multiquip 170400200 is a genuine OEM Flat Head Machine Screw #10-32 x 1/2" designed for MQD2H and MQD3H Diaphragm Pumps. As a factory-original fastener, it meets the exact thread pitch, head profile, and material specification called out in the Multiquip parts manual, ensuring proper seating and torque retention in the pump assembly. Sourced directly through authorized Multiquip distribution, this screw ships as a verified OEM component — the same part installed during original manufacture. If you are servicing or rebuilding an MQD2H or MQD3H diaphragm pump, using part number 170400200 confirms you are installing the correct fastener for the application.
Key Features
- OEM Thread and Head Specification — #10-32 thread form and flat head profile match the original fastener exactly, ensuring correct flush seating against mating surfaces in the pump housing.
- Direct-Fit Replacement — Installs into the same tapped holes as the original without chasing threads or modifying the mounting surface.
- Confirmed Fitment for MQD2H and MQD3H — Verified by Multiquip parts documentation for both MQD2H and MQD3H Diaphragm Pump models.
- Consistent Clamping Load — A properly spec'd fastener maintains even clamping force across pump covers and access panels, preventing leaks caused by uneven or undertorqued hardware.
- Genuine OEM Sourcing — Supplied through authorized Multiquip channels, so the part number, grade, and finish match what the machine was built with.
A flat head machine screw serves as a structural fastener that draws two components together while sitting flush with or below the surface of the mating part. In a diaphragm pump assembly, fasteners like the 170400200 are used to secure covers, panels, and housings where a raised fastener head would interfere with adjacent components or fluid passages. When a screw is the wrong thread pitch, undersized, or stripped, it cannot generate the clamping load needed to keep pump components sealed and aligned — leading to fluid leaks, vibration loosening, or damage to the tapped bore. Using the correct OEM fastener protects the integrity of the joint and the components it holds together.
Part Details
| Part Number | 170400200 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Flat Head Machine Screw #10-32 x 1/2" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diaphragm Pumps | MQD2H |
| Diaphragm Pumps | MQD3H |
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.
