Multiquip 30107 Flat Head Socket Cap Screw 3/8-16x1.25 Left-Hand

The Multiquip 30107 is a genuine OEM Flat Head Socket Cap Screw 3/8-16x1.25 Left-Hand designed for Multiquip and Whiteman ride-on power trowel models including the EHHNK5, HHNG5, and HHXDF4-DF5. As a direct OEM replacement, part 30107 is manufactured to the same specifications as the original hardware, ensuring a correct installation without guesswork. Left-hand thread fasteners are application-specific and must be replaced with the correct thread direction to maintain proper clamp load and resist loosening under rotational forces. Sourcing this part directly from an authorized Multiquip distributor like DHS Equipment ensures you receive the correct component for your machine.

Key Features

• Left-Hand Thread Specification: — Threaded 3/8-16 left-hand to resist rotational loosening in trowel blade assemblies where reverse-thread fasteners are required by design.
• Genuine OEM Hardware: — Manufactured to Multiquip's original material and dimensional standards, delivering the same hardness grade and thread tolerance as the factory-installed fastener.
• Flat Head Socket Cap Profile: — Countersunk flat head seats flush with the mating surface, maintaining clearance in tight-tolerance trowel assembly areas where protruding hardware cannot be tolerated.
• Confirmed Fitment: — Verified for Multiquip and Whiteman ride-on power trowel models EHHNK5, HHNG5, and HHXDF4-DF5 by part number 30107.
• Critical Fastener Integrity: — Using the correct thread direction and grade prevents fastener back-out during operation, which can cause component misalignment or blade assembly failure on rotating trowel equipment.

A flat head socket cap screw is a countersunk fastener driven with a hex key, designed to sit flush with or below the surface of the mating component. In ride-on power trowel applications, left-hand thread fasteners are intentionally used in rotating assemblies where the natural direction of spin would otherwise gradually unthread a standard right-hand fastener during operation. Replacing a worn or damaged left-hand screw with a right-hand thread fastener — even of the same size — will result in progressive loosening and potential loss of the fastened component. Using the correct Multiquip 30107 replacement ensures the fastener performs as engineered and keeps the assembly secured throughout the machine's operating cycle.

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.