The Multiquip 30239 is a genuine OEM Flat Head Socket Cap Screw 5/16-24 x 2-1/2 designed for JH55C walk-behind power trowels. As a direct factory replacement, this fastener meets the original thread pitch, length, and head geometry specified for the JH55C, ensuring a correct installation without guesswork. Sourced directly through Multiquip's OEM supply chain, 30239 delivers the same material grade and dimensional accuracy as the hardware that left the factory floor. If you're servicing or rebuilding a JH55C trowel, having the correct fastener on hand keeps the job moving.
Key Features
- Genuine OEM Fastener Grade — Manufactured to the same thread tolerance and material specification as the original hardware, so torque values and clamping load remain consistent with the trowel's design requirements.
- Exact 5/16-24 x 2-1/2 Specification — The fine-thread 5/16-24 pitch and 2-1/2 inch length match the original fastener exactly, seating flush with the flat head profile for a clean, countersunk installation.
- Direct Fit for JH55C Walk-Behind Trowels — Verified fitment for the Multiquip JH55C, so you can order with confidence and get the repair done right the first time.
- Structural Integrity Where It Counts — A stripped, undersized, or incorrect fastener on a power trowel can allow components to shift under vibration. The correct OEM screw maintains proper clamping force throughout operation.
- Single-Part Replacement — Order only what you need — this listing is for the individual screw, making it easy to source a single replacement without purchasing unnecessary hardware kits.
A flat head socket cap screw is a precision fastener designed to sit flush with or below a surface when installed in a countersunk hole, using an internal hex drive for high-torque tightening in tight spaces. On walk-behind power trowels like the JH55C, fasteners of this type secure key structural and mechanical components that are subject to constant vibration during concrete finishing operations. When a fastener is damaged, stripped, or replaced with an incorrect substitute, joint integrity is compromised — potentially allowing movement between components that must remain rigidly fixed for safe, accurate trowel operation.
Part Details
| Part Number | 30239 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Flat Head Socket Cap Screw 5/16-24 x 2-1/2 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Walk-Behind Power Trowels | JH55C |
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.
