Husqvarna 539300020 Set Screw ¼-20UNC X ½
Husqvarna

Husqvarna 539300020 Set Screw ¼-20UNC X ½

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SKU:
539300020 | Husqvarna
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The Husqvarna 539300020 Set Screw ¼-20UNC X ½ is a genuine OEM fastener designed for the FS3500G, PRO65G, and FS3500E floor saws. As a direct Husqvarna OEM component, this set screw is manufactured to the exact thread specification and dimensional tolerances required by these machines. DHS Equipment supplies this part to help keep your equipment running at full capacity. Cross-reference part number 539300020 against your parts diagram to confirm fitment before ordering.

Key Features

  • Correct Thread Specification — Manufactured to the exact ¼-20UNC X ½ thread profile specified by Husqvarna, ensuring proper engagement and holding strength in the designated fastener location.
  • Genuine OEM Component — Sourced directly from Husqvarna, this set screw meets the same material hardness and torque requirements as the original hardware installed at the factory.
  • Direct Drop-In Replacement — Installs directly into the designated threaded bore on compatible floor saws without modification, maintaining proper assembly alignment.
  • Broad Floor Saw Compatibility — Fits the FS3500G, PRO65G, and FS3500E floor saws, covering a widely used range of Husqvarna walk-behind slab cutting equipment.
  • Structural Integrity Restored — A worn, stripped, or missing set screw can allow components to shift or loosen under load; replacing it with the correct OEM part restores secure, stable assembly.

A set screw is a headless fastener threaded fully through a collar, hub, or housing to lock a component firmly in position against a shaft or mating surface. In floor saw applications, set screws are used to secure rotating or adjustable assemblies, preventing unwanted movement that could affect cutting accuracy or cause premature wear. When a set screw becomes stripped, corroded, or lost, the assembly it holds can shift under the vibration and load of concrete cutting, leading to misalignment, accelerated component wear, or operational failure.

Part Details

Part Number539300020
BrandHusqvarna
Part TypeGenuine OEM
DescriptionSet Screw ¼-20UNC X ½

Compatibility & Fitment

Name Model
Floor Saw FS3500G
Floor Saw PRO65G
Floor Saw Pro65G
Floor Saw FS3500E

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.