Multiquip 112 Screw SHS 5/16-18 X 9/16 Cone Point

The Multiquip 112 Screw SHS 5/16-18 X 9/16 Cone Point is a genuine OEM fastener used across a wide range of Multiquip and Whiteman equipment, including walk-behind trowels, ride-on trowels, rollers, screeds, saws, and vibrators. As a direct OEM replacement, part 112 is manufactured to the exact thread specification and cone point geometry required by the original design, ensuring it seats and locks correctly without rework. Compatible models span the CA, J, B, and HDA walk-behind trowel series, ride-on trowel families including STX55, HTX, HTN, and HHN, as well as the WRS roller screed line, SP flat saw series, RX1575 roller, and select vibrator models. Keeping the correct fastener on hand prevents delays when servicing any of these platforms in the field.

Key Features

• Genuine OEM Thread Specification — 5/16-18 UNC thread form and cone point geometry match the original design intent, ensuring the fastener engages and locks as engineered.
• Cone Point Locking Action — The cone point tip bites into mating surfaces to resist vibration-induced loosening, which is critical on compaction and finishing equipment subject to continuous cyclic load.
• Broad Cross-Equipment Compatibility — A single part number services walk-behind and ride-on trowels (CA, J, B, HDA, STX55, HTX, HTN, HHN series), WRS roller screeds, SP flat saws, RX1575 roller, and CV/SVA vibrators.
• Direct Drop-In Replacement — Identical head drive type and shank length to the original, so it installs with standard tooling and no modification to existing hardware locations.
• Prevents Costly Component Loosening — A missing or incorrect set screw allows assemblies to shift under load; using the correct 112 screw maintains alignment and protects surrounding components.

A cone point set screw is a headless fastener that threads into a tapped hole and uses its tapered tip to apply concentrated point pressure against a mating shaft or surface. This locking action holds components — such as blade spider assemblies, drive hubs, or guard brackets — securely in position even under the sustained vibration and cyclic loading typical of concrete finishing and compaction equipment. When a set screw is missing, stripped, or replaced with an incorrect specification, the assembly can shift or work loose during operation, accelerating wear on surrounding parts and creating a potential safety concern.

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.