The Multiquip 513312 Flat Head Bolt is a genuine OEM fastener designed for use across a wide range of Multiquip equipment, including LS300GK concrete pumps, EM12M series mixers, AR13H and AR14H asphalt rollers, WTB-16PD power buggies, and LS300G, LS300P, and LS600P Mayco pumps. As a direct factory replacement, this bolt is manufactured to the exact dimensions and material specifications required by the original equipment, ensuring a correct and secure fit every time. Sourced directly through authorized Multiquip supply channels, part number 513312 maintains the integrity of the assembly it serves. DHS Equipment stocks this OEM component so you can get your equipment back in service without compromise.
Key Features
- OEM-Grade Fastener Integrity — Manufactured to the exact thread pitch, head geometry, and tensile rating specified for original Multiquip assemblies, so the clamping load stays where it needs to be.
- Countersunk Head Profile — The flat head design sits flush with the mating surface, maintaining proper clearance in close-tolerance assemblies and preventing interference with adjacent components.
- Broad Equipment Compatibility — A single part number fits across multiple Multiquip product families, including LS300GK and LS600P hydraulic concrete pumps, EM12M mixers, AR13H and AR14H ride-on rollers, and WTB-16PD power buggies.
- Exact Replacement Confidence — Carrying the genuine Multiquip part number 513312, this bolt installs directly in place of the original with no modification to holes, threads, or adjacent hardware.
- Protects Structural Joints — A correctly torqued OEM bolt maintains joint preload and prevents loosening under vibration — critical on compaction, pumping, and mixing equipment that operates under continuous load cycles.
A flat head bolt is a threaded fastener with a conical underside that pulls flush with — or slightly below — the surface of the material it clamps. This countersunk profile distributes clamping force evenly across the bearing surface and eliminates any protruding bolt head that could interfere with guards, panels, or moving components. On heavy equipment like concrete pumps, rollers, and power buggies, fastener integrity is critical: an undersized, worn, or incorrect bolt can back out under vibration, leading to loose assemblies, misalignment, or component separation. Using the correct OEM specification bolt ensures the joint holds to its designed torque value throughout the service life of the machine.
For fitment questions or to confirm compatibility with your specific serial number, contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | 513312 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Flat Head Bolt |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS300GK |
| Essick Mixers | EM12M Series |
| Mayco Pumps | LS300G |
| Mayco Pumps | LS300P |
| Mayco Pumps | LS600P |
| Power Buggies | WTB-16PD |
| Rollers | AR13H |
| Rollers | AR13HA/HAR |
| Rollers | AR13HC |
| Rollers | AR14H |
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.
