TRF421/x 5x6x4mm Hex Ball Nut, model spare part

The TRF421/x 5x6x4mm Hex Ball Nut is a dedicated model spare part for maintenance, repair and parts replacement in compatible assemblies. Its specified 5 x 6 x 4 mm format gives builders a concrete reference when matching existing hardware, helping avoid guesswork during service work. This set contains 2 hex ball nuts, making it suitable for replacing a matched pair where even hardware matters across the same mechanism. The hex form supports tool engagement during installation, while the ball nut design suits applications that call for this exact component style rather than a general-purpose nut. Kept in a workshop drawer, spares case or rebuild tray, the set adds a clearly identified fastening part that can be selected by size and type. During routine upkeep, rebuilds or targeted repairs, a correctly specified spare like this helps restore a compatible model assembly with the same stated dimensions. The compact format also makes it practical to keep on hand alongside other service hardware for race-day checks, bench work or scheduled replacement of small mechanical parts.

 

Warning! Not suitable for children under 14 years.