The Multiquip 5287 Nyloc Nut 5/16-18 is a genuine OEM fastener designed for STH hydrostatic ride-on trowels. This is a direct OEM replacement sourced from Multiquip, ensuring the correct thread pitch, dimensional tolerances, and nylon locking insert grade for the application. Verified fitment for STH series hydrostatic ride-on trowel models makes the 5287 a dependable choice when servicing or reassembling your machine. Keep a few on hand — small fasteners like this are easy to overlook until the job stops.
Key Features
- OEM-Grade Nylon Locking Insert — The nylon collar is manufactured to the same resistance specification as the original, maintaining secure thread engagement under vibration loads common to ride-on trowel operation.
- Correct Thread Form for Direct Installation — Cut to a 5/16-18 UNC thread profile, this nut threads directly onto existing fastener hardware without chasing or modification to the mating bolt.
- Fits STH Hydrostatic Ride-On Trowels — Confirmed OEM fitment for the STH series, covering hydrostatic ride-on trowel models in the Multiquip lineup.
- Resists Vibration-Induced Loosening — The nylon insert creates friction against the bolt threads, preventing self-loosening on components subject to continuous operational vibration — a critical characteristic on trowel assemblies.
- Genuine Multiquip OEM Part — Supplied as a genuine OEM component under part number 5287, ensuring the material grade and dimensional spec match what was installed at the factory.
A nyloc nut — also called a nylon-insert lock nut — is a standard hex nut fitted with a nylon collar at the top of the thread. As the nut is tightened onto a bolt, the nylon collar deforms slightly around the bolt threads, creating friction that resists vibration-induced loosening without the need for thread-locking compounds or additional hardware. On ride-on trowels, which operate under sustained vibration from rotating trowel blades, maintaining secure fastener engagement is essential to keeping panels, guards, and mechanical assemblies properly retained. A missing or damaged nyloc nut can allow hardware to back off over time, leading to component movement, wear, or potential failure of the fastened assembly.
For fitment questions or help confirming the right part for your machine, contact DHS Equipment directly.
Part Details
| Part Number | 5287 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Nyloc Nut 5/16-18 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Hydrostatic Ride-On Trowels | STH |
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.
