Multiquip 06503-030 HHC Screw 1/2-13 x 3-3/4

The Multiquip 06503-030 is a genuine OEM HHC Screw 1/2-13 x 3-3/4 designed for a wide range of Multiquip pavement saws, flat saws, and lighting systems. As a direct OEM replacement fastener, it is held to the same dimensional and material standards as the hardware installed at the factory, ensuring a consistent, secure fit wherever it is called out in the assembly. This screw is confirmed for use across the SP, PS, and CS pavement and flat saw series — including SP303516, SP303520, SP403016, SP605716, SP706016, PS403016, PS706016, CS403016, CS706016, and related models — as well as MB150, MB400, MB400B, MB1000, and MB1000W lighting systems. Sourcing the correct OEM fastener by part number 06503-030 eliminates the guesswork that comes with substituting generic hardware on critical structural connections.

Key Features

• Genuine OEM Material Grade — Manufactured to the same thread specification, shank diameter, and tensile strength as the original hardware, critical for maintaining clamping force on saw frames and lighting mounts under sustained vibration.
• Correct Thread Form for Direct Installation — The 1/2-13 UNC thread pattern and 3-3/4 inch length match the tapped holes in OEM assemblies exactly, threading in without re-tapping or modification to the receiving component.
• Broad Saw and Lighting System Coverage — Fits SP, PS, and CS pavement and flat saw series alongside MB-series lighting systems, making this a practical stocking fastener for operations running multiple Multiquip machines.
• Structural Integrity Under Operating Loads — Pavement saws and light towers subject fasteners to continuous vibration and load cycling; using a correctly rated OEM screw maintains joint integrity and prevents loosening or fatigue failure over time.
• Safety-Critical Fastener Application — Blade guards, engine mounts, and tower brackets depend on correctly specified hardware; substituting an undersized or lower-grade fastener in these positions introduces risk during operation.

A hex head cap (HHC) screw is a high-strength structural fastener used throughout heavy equipment frames, guard assemblies, engine mounts, and equipment towers. The hex head allows high torque to be applied with standard wrenches, making it the preferred choice for connections that must maintain clamping load under vibration. When a fastener of this type loosens, stretches, or fails, it can compromise the alignment or security of the component it holds — ranging from blade guard positioning on a pavement saw to the stability of a lighting tower bracket. Using the specified OEM part number ensures the thread engagement length, shank strength, and head bearing area are all matched to the original engineering intent of the assembly.

Part Details

Compatibility & Fitment

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.