1 x Trailer Castle Nut 3/4" UNF Zinc Finish Suited For LM & Slimline Bearings

Keep your trailer hub securely fastened with this 3/4" UNF Trailer Castle Nut, designed to suit trailer hubs fitted with LM (Holden) and Slimline (Ford) bearing combinations. Manufactured from precision-machined steel with a durable zinc plated finish, this replacement castle nut provides reliable performance and excellent corrosion resistance for everyday towing applications.

Featuring a 3/4" UNF fine thread and a traditional 6-slot castellated design, this nut is used together with a split pin to lock the wheel bearing adjustment in place, helping prevent the hub assembly from loosening during operation. It is commonly fitted to 39mm round, 40mm square and 45mm square trailer axles used across a wide range of Australian trailers and caravans.

Ideal for wheel bearing servicing, trailer maintenance or complete hub rebuilds, replacing worn or damaged castle nuts helps maintain correct bearing preload and contributes to safer, more dependable towing performance.

Features

• Quality replacement trailer castle nut
• 3/4" UNF fine thread
• 6-slot castellated locking design
• Corrosion-resistant zinc plated finish
• Precision-machined steel construction
• Suits LM (Holden) and Slimline (Ford) bearing hubs
• Generally suits 39mm round, 40mm square and 45mm square axles
• Secures with a split pin after bearing adjustment
• Ideal for trailers, caravans, boat trailers and camper trailers

Specifications

Castle Nut

• Thread Size: 3/4" UNF
• Thread Pitch: 16 TPI (Fine Thread)
• Design: 6 Slot Castellated Nut
• Material: Steel
• Finish: Zinc Plated
• Bearing Compatibility: LM (Holden) & Slimline (Ford)
• Suits Axles: 39mm Round, 40mm Square & 45mm Square

Package Includes

• 1 × 3/4" UNF Trailer Castle Nut

CMW-177852736157