Custom Brass Internal Threaded Retaining Sleeve Nut for Nail Drill Handpiece
This cylindrical brass component combines the functions of a sleeve and an internal threaded nut. It can be installed around a shaft, spindle, bearing or internal handpiece component to provide retention, connection or positioning.
Unlike a conventional hex nut, the round external body is designed for installation inside a compact cylindrical assembly. The internal bore may contain a full thread, partial thread, smooth locating section or stepped structure according to the mating component.
CNC turning controls the external profile and internal bore, followed by internal threading, grooving and edge finishing. Thread fit and concentricity between the bore and outside diameter can be specified where they affect assembly performance.
Brass provides good machinability, corrosion resistance and stable thread quality. Alternative copper alloys, aluminum and stainless steel can also be considered.
Product Specifications
| Item | Available Options |
|---|---|
| Product Type | Internal threaded sleeve nut / retaining sleeve |
| Material | Brass, copper alloy, aluminum or stainless steel |
| Manufacturing Process | CNC turning, boring and internal threading |
| External Structure | Straight, stepped, shouldered or grooved |
| Internal Structure | Full thread, partial thread, stepped bore or smooth bore |
| Thread Standard | Metric, UNC, UNF or custom |
| Outside Diameter | Custom according to drawing |
| Overall Length | Custom |
| Tolerance | ±0.01 mm–±0.05 mm for selected dimensions |
| Surface Finish | Natural brass, polished, nickel plated or custom |
| Application | Nail drill handpiece, rotary tool and compact equipment |
| Production Basis | Drawing-based or sample-based manufacturing |
Custom Options
| Custom Feature | Information Required |
| Internal Thread | Diameter, pitch and tolerance class |
| Thread Depth | Full depth or specified engagement length |
| Inside Diameter | Thread minor diameter or smooth bore diameter |
| Outside Diameter | Nominal diameter and fitting tolerance |
| Sleeve Length | Finished overall length |
| Shoulder Profile | Diameter, height and position |
| External Groove | Width, depth and location |
| Material Grade | Required brass or alternative alloy |
| Surface Treatment | Natural, polished or plated |
| Assembly Fit | Mating shaft or housing dimensions |
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