The Multiquip 90123445 is a genuine OEM 5/8″-11 x 4 LH Hex Bolt designed for SP Series pavement saws and flat saws. As a direct OEM replacement, this bolt is manufactured to the same specifications as the original hardware, ensuring a correct fit within the saw assembly. It is confirmed compatible with SP303516, SP303520, SP303526, SP303530, SP605716, SP605720, SP605726, SP605730, SP605736, SP6457, and SP4 series equipment. Sourcing the correct Multiquip 90123445 hardware keeps your saw running as intended and avoids the alignment and torque issues that come with mismatched fasteners.
Key Features
- Left-Hand Thread Specification — The LH (left-hand) thread pattern is critical on rotating saw assemblies; using a standard right-hand bolt here will strip under operational torque and compromise blade retention.
- Genuine OEM Hardware — Manufactured to the exact grade, thread pitch (5/8″-11), length (4″), and material hardness Multiquip specifies for this application — not a generic hardware store substitute.
- Broad SP Series Compatibility — Fits SP303516, SP303520, SP303526, SP303530, SP605716, SP605720, SP605726, SP605730, SP605736, SP6457, and SP4 pavement and flat saw models from the Multiquip Street Pro lineup.
- Correct Torque Transfer — A properly spec'd bolt in this position maintains secure clamping force on the blade assembly, supporting clean, straight cuts and consistent depth control throughout the saw’s operating cycle.
- Blade Assembly Safety — On pavement saws, fastener failure at the blade mount is a direct safety risk; using the OEM-specified 90123445 bolt ensures the connection holds under the vibration and load demands of asphalt and concrete cutting.
A hex bolt in this position serves as a primary fastener within the blade drive or cutting assembly of the SP Series pavement and flat saw. The left-hand thread designation is intentional — it counteracts the rotational direction of the blade, meaning the bolt naturally tightens during operation rather than backing out. When this bolt is worn, cross-threaded, or replaced with an incorrect right-hand-thread equivalent, the fastener can loosen progressively under load, leading to blade instability, accelerated wear on mating components, and a potential loss of blade control during cutting.
Part Details
| Part Number | 90123445 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | 5/8"-11 x 4 LH Hex Bolt |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Pavement Saws | SP303516 |
| MQ Pavement Saws | SP303520 |
| MQ Pavement Saws | SP303530 |
| MQ Pavement Saws | SP605716 |
| MQ Pavement Saws | SP605720 |
| MQ Pavement Saws | SP605730 |
| MQ Pavement Saws | SP605736 |
| MQ Pavement Saws | SP4 |
| MQ Pavement Saws | SP303526 |
| MQ Pavement Saws | SP605726 |
| MQ Pavement Saws | SP6457 |
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.
