A1369 Mackay 25mm Slotted Axle Nut | Marine Trailer Part

🔧 Product Description

Genuine Mackay Marine Trailer Products Heavy-Duty 25mm Slotted Axle Nut - Part Number: A1369

A slotted axle nut for compatible heavy-duty 25mm-thread trailer stub axles. The nut secures the hub and allows a split pin to lock the final bearing-preload position.

⚙️ Key Features

• Heavy-duty slotted/castellated axle-nut design

• Nominal 25mm thread application

• Provides positive split-pin locking

• Replacement for damaged or lost hub-retaining nuts

• Suitable for compatible heavy-duty trailer axles

📏 Specifications

• Nominal thread size: 25mm

• Thread pitch must match the axle stub

• Washer and split pin are supplied separately unless stated

🔄 Cross Reference & Related Parts

• Use with the matching axle washer and new split pin

• Smaller standard axle-nut kit: Mackay A1368

🚤 Compatibility & Application

• Compatible heavy-duty trailer stub axle with matching 25mm thread

• Set bearing preload before installing the split pin

• Do not use an impact wrench to set bearing adjustment

• Replace if slots or threads are damaged

🔌 Function

Retains the hub on the axle and locks the bearing adjustment using a split pin.

Common signs of wear, damage or replacement required:

• Threads are stripped or galled

• Nut slots are cracked or rounded

• Nut cannot be aligned without incorrect bearing preload

• Axle thread is damaged

• Split pin does not seat correctly

📦 Condition

• Genuine Mackay Marine Trailer Products part

• Brand new

• Supplied in original or equivalent packaging