The Multiquip 1284 is a genuine OEM Screw HHC 3/8-16 x 1-1/2 designed for a wide range of Multiquip and Whiteman equipment including ride-on and walk-behind power trowels, vibratory screeds, concrete mixers, and masonry saws. As a direct OEM replacement, part 1284 matches the original fastener specification exactly, ensuring correct torque retention and secure assembly across every application it serves. Compatible models include HHN31V, CA4HM, CA4HC, CA5BC, WSHE-A series, EM120SM, EM120S series, EM120P series, WM120SH, WM120PH, JWN24HTCSL, JTNSW24HTCSL, JTNSW20HTCSL, JTNSW20, JTNS20, HTN, JTO series, J36-M30, CA-4-4H, SP1G, SP1E16A, SP1CE13H18, SP2S20H, SP118, MP2H, MP25E1, MP25E3, MP275E3, MP2050E1, MP2050E3, and MP2090HP. Sourcing the correct fastener by 1284 is the surest way to avoid fitment issues and maintain the structural integrity of your equipment.
Key Features
- Genuine OEM Fastener Specification — Manufactured to the exact thread pitch, length, and head dimensions Multiquip specifies, ensuring consistent clamping force across every joint it secures.
- Hex Head Cap Design — The HHC hex head format accepts standard 9/16-inch wrench or socket drive, allowing straightforward installation and removal in tight assembly locations.
- Broad Cross-Equipment Compatibility — A single part number covers ride-on trowels, walk-behind trowels, vibratory screeds, mixers, and masonry saws, including HHN31V, CA4HM, WSHE-A series, WM120SH, and SP-series saws.
- Structural Integrity Across Service Intervals — Using the correctly rated fastener prevents joint loosening under vibration and load cycling, which are constant operating conditions on trowels, screeds, and saws.
- Direct OEM Sourcing Through DHS Equipment — Sold as an authorized Multiquip genuine OEM part, so the part number, grade, and dimensions are verified against the original bill of materials.
A hex head cap screw is a threaded fastener used to clamp and secure structural components, guards, brackets, and assemblies on construction equipment. On machines like power trowels, screeds, mixers, and saws, fasteners are subjected to continuous vibration and mechanical stress, making correct thread engagement and material grade critical to safe, long-term operation. When a fastener is the wrong length, thread pitch, or grade, it can strip threads, allow joint movement, or fail under load — leading to component damage or unsafe operating conditions. Replacing worn or damaged hardware with the correct OEM-specified part, such as Multiquip 1284, ensures the assembly performs as originally engineered.
Part Details
| Part Number | 1284 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Screw HHC 3/8-16 x 1-1/2 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HHN31V |
| Whiteman Walk-Behind Power Trowels | CA4HM |
| Whiteman Walk-Behind Power Trowels | CA4HC/CA5BC |
| Vibratory Screeds | WSHE-A Series |
| Essick Mixers | EM120SM |
| International Ride-On Power Trowels | JTNSW24HTCSL |
| International Ride-On Power Trowels | JTNSW20HTCSL |
| Whiteman Ride-On Power Trowels | JWN24HTCSL/HSCSL |
| Saws | SP1G |
| Whiteman Walk-Behind Power Trowels | CA-4-4H |
| International Ride-On Power Trowels | JTNSW20 |
| International Ride-On Power Trowels | JTNS20 |
| Whiteman Mixers | WM120SH |
| Whiteman Mixers | WM120PH |
| Essick Mixers | EM120S Series |
| Essick Mixers | EM120P Series |
| Saws | MP2090HP |
| Saws | MP2050E3 |
| Saws | MP2050E1 |
| Saws | MP2H |
| Saws | MP275E3 |
| Saws | MP25E3 |
| Saws | MP25E1 |
| Whiteman Ride-On Power Trowels | HTN-KHOLER/ONAN/HONDA |
| Saws | SP1E16A |
| Saws | SP1CE13H18 |
| Whiteman Ride-On Power Trowels | JTO-SERIES |
| Saws | SP2S20H |
| Whiteman Ride-On Power Trowels | J36-M30 |
| Saws | SP118 |
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.
