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ROVER HEAVY DUTY BOLT & NUT SET (BBN443)

SKU BBN443
BARCODE 9316596000326
By: GA
Original price $15.50 - Original price $15.50
Original price
$15.50
$15.50 - $15.50
Current price $15.50
Availability: This product will be delivered in 3-5 business days
Size: Kit
Colour: Black

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Delivery Notice:

Please allow 3-5 business days for processing before it's ready for delivery or pickup. All standard delivery options still apply.

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Rover Heavy Duty Blade Bolt & Nut Set – Lawn Mower Parts (BBN443)

Ensure the absolute safety and maximum cutting performance of your outdoor power equipment with the Rover Heavy Duty Bolt & Nut Set (BBN443). Securing the cutting blades to your mower's spinning disc is one of the most critical maintenance tasks in lawn care. Utilizing old, stretched, or weakened hardware can lead to catastrophic blade detachment or violent engine vibrations. Manufactured from high-tensile, heat-treated steel, this premium lawn mower replacement hardware guarantees your heavy-duty offset blades (like the BLD5695) remain safely and firmly locked in place, even when striking hidden debris or thick brush.

Engineered for maximum cross-compatibility and industrial resilience, this versatile aftermarket kit directly replaces genuine Rover OEM part numbers A00673K and 0000673. It is the definitive hardware solution for a massive array of heavy-duty machines, including Rover ride-on mowers, commercial slashers, and 18" to 20" rear catcher push mowers. Furthermore, it is a perfect fit for selected Jetfast, Supa-Swift, and Masport Contractor utility models. By upgrading to this fresh, high-tensile mower blade bolt kit, professional landscapers and dedicated homeowners ensure their machinery operates smoothly, safely, and with perfect balance.

Who Is This Heavy Duty Bolt Set Ideal For?

This high-tensile blade bolt and nut set provides crucial cutting disc security. It is highly recommended for:

  • Professional Lawn Care Contractors: Routinely servicing their commercial walk-behind and ride-on mowers to ensure strict OH&S compliance and safe operation on public properties.
  • Small Engine Mechanics: Sourcing reliable, heavy-duty lawn mower replacement parts to professionally refurbish clients' cutting decks and slashers.
  • Agricultural Workers: Securing massive heavy-duty offset blades on rough-terrain slashers used for clearing dense rural paddocks and thick scrub.
  • DIY Homeowners: Safely installing new cutting blades on their domestic Rover or Masport mower, avoiding the extreme danger of reusing old, fatigued bolts.

Key Features and Performance Benefits:

  • High-Tensile Steel Construction: Engineered to safely withstand the massive centrifugal forces and severe impacts generated by heavy-duty commercial cutting blades.
  • Direct OEM Replacement: Meets or exceeds the precise factory specifications of original Rover hardware (Replaces OEM A00673K and 0000673).
  • Prevents Engine Damage: Using brand-new, perfectly matched hardware ensures the cutting disc remains balanced, eliminating vibrations that destroy the engine's crankshaft bearings.
  • Broad Machine Compatibility: Fits an extensive range of popular utility mowers and ride-ons from trusted brands including Rover, Masport, Jetfast, and Granberg.
  • Complete Hardware Kit: Arrives with both the specialized heavy-duty bolts and the accompanying secure locking nuts required for a safe, professional installation.

Technical Specifications:

  • Product Type: Heavy Duty Blade Bolt & Nut Set
  • Part Number: BBN443
  • Replaces Genuine Rover Parts: A00673K, 0000673
  • Compatible Blade Type: Heavy-duty offset bolt hole blades (e.g., BLD5695)
  • Machine Suitability (Rover): All ride-on mowers, slashers, and 18"/20" rear catcher models.
  • Machine Suitability (Other): Granberg domestic models, Jetfast/Supa-Swift B22, Masport 21" Contractor 530, Talon 19" AM3054.

Dispatch: Items marked as “In stock” or “Ready to be shipped” are usually dispatched within 1 business day after payment is received. If an item is not in stock and ordered from our supplier, please allow 3–5 business days for processing before it is ready for delivery or pickup. All standard delivery options still apply.

Shipping: Delivery costs are calculated at checkout based on your location and order size. Bulky items and chemicals may attract additional freight charges and cannot be sent to PO Boxes.

Delivery: Parcels are delivered by road freight. Authority to leave may be used if no one is available to receive the order. For full details, please see our Shipping & Delivery Policy

Business days to delivery

NSW
City 1 Day
VIC
Melbourne 1 Day
Regional 3–4 Days
QUEENSLAND
Brisbane 1–2 Days
Regional 3–4 Days
SOUTH AUSTRALIA
Adelaide 2–3 Days
Regional 4–5 Days
NORTHERN TERRITORY
All Areas 4–6 Days
WESTERN AUSTRALIA
All Areas 4–6 Days
TASMANIA
All Areas 4–6 Days
Can I just reuse my old bolts when I buy new blades?

It is highly dangerous and strongly discouraged. Old bolts stretch, fatigue, and weaken over time due to the extreme centrifugal force and impact of hitting rocks. Reusing them dramatically increases the risk of the bolt snapping and the blade flying out from under the mower.

Will these bolts fit standard, lightweight domestic blades?

These bolts are specifically designed as 'Heavy Duty' hardware for offset bolt hole blades (like the BLD5695). They feature a thicker shoulder designed for thicker, commercial-style blades and slashers.

Does this kit include the nuts?

Yes, this is a complete hardware set. It includes the high-tensile bolts as well as the matching locking nuts required to secure the blade safely to the cutting disc.

Are the nuts 'Nyloc' (self-locking)?

Yes, high-quality mower blade nuts typically feature a nylon locking ring (Nyloc) or a specialized deformed thread. This ensures the extreme vibration of the engine does not cause the nut to rattle loose during operation.

How tight should I do these bolts up?

The nuts must be tightened very securely, but the blade itself MUST still be able to pivot or 'swing back' freely by hand. If you over-tighten them to the point where the blade is crushed and rigid, it defeats the safety swing-back mechanism and can damage the engine.

Will this fit my Masport Contractor 530?

Yes, this specific heavy-duty bolt set (BBN443) is fully compatible and widely used on the rugged Masport 21-inch Contractor 530 utility models.

Do I need special tools to install these?

You will typically need two standard spanners or sockets (often 14mm, 16mm, or 17mm depending on the bolt) to hold the bolt head while tightening the nut. Always disconnect the spark plug before working under the mower.

Is this a genuine Rover part?

This is a premium-quality aftermarket replacement hardware kit. It is specifically manufactured to perfectly replace and match the safety ratings of genuine Rover OEM parts A00673K and 0000673.

Will these rust?

The bolts are manufactured from heat-treated, high-tensile steel and are typically zinc-plated to resist corrosion from wet grass and highly acidic lawn clippings.

Can I use these on a 4-blade cutting disc?

Yes, provided your cutting disc requires heavy-duty offset bolts. However, you must purchase enough sets to replace all 4 bolts and blades simultaneously to maintain perfect engine balance.

What is an 'offset bolt hole' blade?

It means the mounting hole is not directly in the center line of the blade steel; it is stepped or pushed to one side. This specialized hardware is machined to perfectly accommodate that offset shape.

Do you offer trade accounts for mower repair shops?

Yes, Freshway Supplies provides highly competitive trade and volume pricing for small engine mechanics, commercial landscapers, and lawn care contractors. Contact us to establish your account.

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