The Multiquip 64900174 Hex Serrated Flange Cap Screw M8-1.25 X 16 is a genuine OEM fastener designed for the C30HDG concrete pump. As a direct Multiquip OEM component, 64900174 is manufactured to the exact thread pitch, shank length, and flange geometry required for proper installation on C30HDG equipment. DHS Equipment stocks this part to keep your concrete pump running with the correct hardware in every critical joint and connection point.
Key Features
- Genuine OEM Fastener Grade — Produced to the exact tensile strength and serrated flange specification required for Multiquip concrete pump assemblies, ensuring proper clamp load without fastener substitution.
- M8-1.25 X 16 Thread Specification — Precise metric thread profile and 16 mm shank length thread directly into existing tapped bores on the C30HDG with no rethreading or modification to mounting points.
- Integrated Serrated Flange — The built-in serrated flange acts as a captive locking washer, biting into the mating surface under torque to resist loosening from pump vibration during operation.
- Confirmed C30HDG Fitment — Verified OEM replacement for Mayco C30HDG concrete pump applications — use part number 64900174 to confirm an exact match before ordering.
- Structural Integrity Assurance — Using the correct OEM-spec fastener in pump housings, covers, and structural panels prevents joint failure, fluid leaks, and component separation under load.
A hex serrated flange cap screw is a metric fastener that combines a hex-drive cap screw with an integrated flanged base featuring serrated teeth around its perimeter. The flange distributes clamping force over a wider surface area than a standard bolt head, while the serrations grip the mating material to resist vibration-induced loosening — a critical characteristic in equipment like concrete pumps that operate under sustained mechanical stress. When a fastener of the wrong specification is used, or when an original screw becomes stripped or corroded, joints can work loose, leading to misalignment, leaks, or structural failure in the affected assembly.
Part Details
| Part Number | 64900174 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hex Serrated Flange Cap Screw M8-1.25 X 16 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDG |
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.
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