Micro Titanium Screw Manufacturing

As a key connection component in the high-end manufacturing field, the value of micro titanium screws lies not only in their “miniaturized” size design, but also in the outstanding performance endowed by titanium and titanium alloy materials – excellent mechanical strength, extremely strong corrosion resistance, good biocompatibility and adaptability to a wide temperature range. These enable them to replace traditional metal screws in scenarios such as medical devices, aerospace, and precision electronics, which have strict requirements on connection accuracy and reliability, and solve core pain points such as lightweight, resistance to extreme environments, and biosafety.

Precision Specifications

The precision of micro titanium screws directly impacts assembly accuracy and connection stability. Key precision indicators include:

Thread Accuracy: According to international standards, threads are classified as 4H, 5H, and 6H (internal threads) and 4g, 5g, and 6g (external threads). Micro titanium screws typically use 5g, 6g, or 6g precision to ensure smooth thread engagement without loosening or binding.

Dimensional Tolerances: The shank diameter tolerance is typically h6 (upper tolerance: 0, lower tolerance: -0.008mm), the head diameter tolerance is ±0.005mm, and the shank length tolerance is ±0.01mm to accommodate the assembly clearance requirements of precision equipment.

Surface Roughness: Surface roughness Ra is typically ≤0.8μm. Some micro titanium screws for medical devices require Ra ≤0.4μm to minimize irritation to human tissue and prevent contaminant adhesion.