Product Details
These compact inserts are part of our CNC Machining Small Parts and CNC Milling Services Near Me offering, designed for customers who require extremely tight tolerances and stable electrical performance at miniature scale. Manufactured from 4J29 (Kovar) alloy, each piece is sintered for structural integrity and then finished with a full soft gold plating, providing excellent conductivity and corrosion resistance for use in electronic, communication, and sensor applications.
Product Structure
The insert follows a compact, highly functional structure optimized for micro-assembly:
Rectangular main body ensuring stable positioning during installation
Central recessed cavity engineered for accommodating contacts, weld pads, or interface terminals
Two M1.6-6H threaded holes on both ends for secure fastening in confined spaces
Ra1.6 smooth surface finish to ensure reliable bonding, soldering, or electrical interface
Overall soft gold plating after sintering for enhanced conductivity and environmental protection
The structure is designed specifically for precision micro-electronics and high-density component layouts.
Precision Manufacturing Features
Our process control is aligned with the accuracy expected from top-tier CNC Machining Small Parts production:
Surface Roughness: Ra 1.6
Dimensions: 15.3 × 4 × 4.5 mm
Threaded Features: 2 × M1.6-6H micro threads
Material: 4J29 (Kovar), stable under thermal cycling
Surface Treatment: Full soft gold plating after sintering
Each detail is machined to maintain consistent fitment and reliable mechanical performance for small-scale assemblies.
Applications
Micro connectors
Sensor and detection modules
High-frequency communication hardware
Hermetically sealed electronic components
Precision electronic assembly fixtures
FAQ
Q: Can the dimensions or threading be customized?
A: Yes. We offer flexible customization according to drawings, samples, or functional requirements.
Q: What is the soft gold plating thickness?
A: We can adjust plating thickness depending on bonding, conductivity, or corrosion-resistance requirements.
Q: Do you support prototype quantities?
A: Yes. We accept prototypes, small-batch manufacturing, and high-volume orders.
Q: Can you provide both sintering and CNC machining?
A: Yes. Our process covers sintering, micro-machining, threading, and post plating.
Q: Is 4J29 suitable for hermetic sealing?
A: Absolutely. 4J29 (Kovar) is widely used for glass-to-metal sealing due to its matched thermal expansion.
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