Custom CNC Machining Fasteners Machined Nut CNC-machined Threads for Vibration Resistance
Custom CNC Machining Fasteners Machined Nut CNC-machined threads for vibration resistance
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Custom CNC Machining Fasteners Machined Nut CNC-machined Threads for Vibration Resistance
Polestar Metal specializes in the production of custom non-standard fasteners, offering tailored solutions such as special surface treatments for standard components and bespoke machining for non-standard parts. With expertise in precision small-part customization, Polestar provides cost-effective solutions and has earned recognition from leading global corporations.
Here are several detailed case examples of Machined Nuts which Polestar Metal Solved:
- Aerospace Turbine Assembly
Nut Type: High-Temperature Lock Nut
Material: Inconel 718 (Nickel-Chromium Alloy)
Size: 3/8″-24 UNF
Key Features:
Withstands extreme heat (up to 1,300°F/700°C) in jet engines.
Precision-machined threads for vibration resistance.
Coated with dry-film lubricant to prevent galling.
- High-Speed Train Bogie Frame
Nut Type: Flanged Hex Nut
Material: Grade 10.9 Steel (Zinc-Nickel Plated)
Size: M24x3.0
Key Features:
Integrated flange distributes load across welded joints.
Corrosion-resistant coating for outdoor rail environments.
Torque-to-yield installation ensures consistent clamping force.
- Medical Imaging Equipment
Nut Type: Non-Magnetic Cap Nut
Material: Titanium (Ti-6Al-4V ELI)
Size: M6x1.0
Key Features:
MRI-compatible (zero magnetic interference).
Smooth, rounded cap protects patients from sharp edges.
Autoclavable for sterilization.
- Offshore Oil Rig Mooring System
Nut Type: Heavy-Duty Hex Nut
Material: ASTM A194 Grade 2H (Hot-Dip Galvanized)
Size: 1-1/2″-8 UNC
Key Features:
Resists saltwater corrosion and hydrogen embrittlement.
Machined to ±0.001″ tolerance for load-critical chains.
Paired with hardened washers to prevent seabed abrasion.
- Electric Vehicle Battery Pack
Nut Type: Conductive Copper Nut
Material: C11000 Electrolytic Copper
Size: M8x1.25
Key Features:
Ensures electrical grounding for battery modules.
Annealed for ductility to avoid thread cracking.
Nickel-plated to reduce oxidation.
- Industrial Robot Arm (6-Axis Joint)
Nut Type: Self-Aligning Spherical Nut
Material: Case-Hardened 4140 Steel
Size: M12x1.75
Key Features:
Compensates for angular misalignment in robotic joints.
Precision-ground spherical seat reduces wear.
Lubrication grooves extend service life.
Why These Cases Matter:
Precision: CNC-machined threads ensure consistent performance under stress.
Material Science: Alloys/finishes are tailored to operational demands (heat, corrosion, conductivity).
Safety-Critical: Failures in aerospace/medical apps can be catastrophic; nuts are rigorously tested.
CNC Machined Nut vs Standard Nut
When to Choose Each Type?
CNC Machined Nuts:
Need exotic materials (e.g., Inconel, PEEK).
Require tight tolerances or non-standard geometries .
Critical environments: high temperature, corrosion, vacuum .
Standard Nuts:
High-volume projects with budget constraints .
Standardized assemblies (e.g., M6, 1/2″-13 UNC ).
Non-critical applications with low torque/vibration .
Core Competencies:
✅ Small CNC Machining – Producing miniature, complex parts (0.1mm–300mm) with tolerances down to ±0.005mm .
✅ Non-Standard Fasteners – Custom-designed screws, bolts, pins, and connectors for niche applications .
✅ Materials Expertise – Machining stainless steel, titanium, aluminum, plastics , and exotic alloys.
✅ End-to-End Solutions – From prototyping to high-volume production with strict ISO9001, IATF16949 compliance.
Key Industries Served:
Medical & Dental : Surgical tools, implantable devices, micro-fasteners.
Electronics : Micro-connectors, sensor housings, PCB mounts.
Aerospace & Defense : Lightweight brackets, drone components, specialty fasteners.
Automotive : Fuel injection parts, custom fasteners, EV components.
Why Choose Us?
✔ Precision-First Approach : Leveraging 3-axis 4-axis CNC, Swiss lathes, and EDM for intricate geometries.
✔ Agile Customization : Rapid turnaround for low-volume batches and one-off prototypes .
✔ Quality Assurance : Rigorous inspection (CMM, optical comparators) and traceability .
✔Global Supply Chain : Reliable logistics for JIT delivery and international clients.
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