Multiquip 30318 Flat Head Socket Cap Screw 3/8‑24 x 1

The Multiquip 30318 is a genuine OEM Flat Head Socket Cap Screw 3/8‑24 x 1 designed for Whiteman walk-behind and ride-on power trowel models including BH90C, BH11C, BS90C, HHN34TVD, HHXD5, HHNG5, and HHXDF4-DF5. As a direct OEM component, it meets the exact thread pitch, head profile, and drive specification called out in the original Multiquip assembly. Sourcing the correct fastener matters on trowel assemblies where torque retention and flush-seating are critical to blade and guard hardware staying secure under continuous rotational load. DHS Equipment stocks this part to keep your Whiteman trowel running to spec.

Key Features

• Correct Thread and Drive Spec: ‑24 unified fine thread pitch and flat head socket drive matches the original fastener specification, ensuring full thread engagement and proper hex key installation in tight trowel assembly locations.
• Flush-Seating Head Profile: The flat head countersunk design sits flush with mating surfaces, preventing protrusion that could interfere with blade rotation or adjacent hardware clearance on the trowel deck.
• Genuine OEM Part: Sourced directly from Multiquip, part number 30318 carries the same material grade and dimensional tolerances as the fastener installed at the factory, so thread fit and clamping load are not compromised.
• Broad Whiteman Trowel Compatibility: Confirmed fitment across BH90C, BH11C, BS90C, HHN34TVD, HHXD5, HHNG5, and HHXDF4-DF5 walk-behind and ride-on Whiteman power trowel models.
• Torque Retention Under Vibration: Fine-thread fasteners like the 3/8‑24 resist loosening under the constant vibration inherent to power trowel operation, helping maintain the integrity of the assembly between service intervals.

A flat head socket cap screw is a countersunk fastener with a hex socket drive, engineered to sit flush or below the surface of the mating component when fully tightened. On power trowels, fasteners like the Multiquip 30318 are used in locations where a protruding fastener head would create a clearance problem or a snag hazard near moving blade assemblies. When a fastener in this position is missing, stripped, or substituted with the wrong thread pitch, the joint can work loose under vibration, leading to component shift, premature wear on the mating hardware, or a safety concern if blade-related hardware becomes unsecured during operation.

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.