Multiquip 9191 Button Head Socket Cap Screw M5-0.8x16mm Zinc Plated

The Multiquip 9191 is a genuine OEM Button Head Socket Cap Screw M5-0.8x16mm Zinc Plated designed for Whiteman and International ride-on power trowels including the HHXDF4, HHXD5, HHXG5, HTNS5S-2, JWN24HTCSL, JTNSW24HTCSL, and related series. As a direct OEM replacement, part 9191 meets the original assembly specification for thread pitch, head profile, and zinc plating — ensuring correct torque retention and corrosion resistance at installation points throughout the machine. Sourced directly through Multiquip's authorized parts network, this fastener is the same component used in original production builds. Confirm your model from the fitment list before ordering to ensure this is the correct screw for your application.

Key Features

• Genuine OEM Fastener Spec: — M5-0.8x16mm thread and button head profile match original assembly drawings exactly, maintaining correct clamping force and seating depth at the installation point.
• Zinc Plated Finish: — The zinc plating provides corrosion resistance suited to the outdoor and wet-concrete environments that ride-on trowels regularly operate in.
• Direct Drop-In Replacement: — Button head socket drive installs with a standard hex key, threading directly into existing tapped holes with no rework or re-tapping required.
• Broad Trowel Series Coverage: — Compatible with Whiteman and International ride-on power trowel models including HHXDF4, HHXD5, HHXG5, HHNG5, HTNS5S-2, JWN24HTCSL, JTNSW20, JTNSW24HTCSL, JTNS20, and EHHNK5.
• Structural Integrity at Critical Joints: — A stripped, missing, or incorrect fastener at a trowel guard, housing, or blade assembly can compromise machine rigidity and operator safety; using the correct OEM spec screw maintains the designed joint integrity.

A button head socket cap screw uses a low-profile rounded head and an internal hex drive socket to secure components where clearance is limited or a flush, snag-free surface is needed. On ride-on power trowels, fasteners like the Multiquip 9191 are used to attach guards, covers, and structural panels that must stay firmly seated under continuous vibration. When a fastener is missing, cross-threaded, or substituted with an incorrect size, the joint can work loose over time — leading to panel movement, accelerated wear on surrounding components, or exposed mechanical hazards. Using the correct OEM replacement screw restores the joint to its original clamping specification.

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.