When your product design pushes the limits of miniaturization and standard inserts are simply too large, you need superior manufacturing capability. Tingfeng Hardware specializes in micro brass heat set nuts below M2.0. Equipped with Japanese Citizen Swiss-type lathes, we reliably machine M1.0 micro-threads while holding ±0.01mm OD tolerances. We solve the industry-wide issue of boss cracking when installing inserts into plastic walls thinner than 1.0mm. As an ISO9001 and IATF16949 certified manufacturer, we provide reliable fastening engineering solutions for your miniaturized products.

In micro injection molding, the quality of the threaded insert directly determines the final assembly yield. A brass nut the size of a grain of rice, if it has invisible burrs or thread damage, can scrap an entire smartwatch housing or medical monitoring device. Tingfeng Hardware deeply understands the devastating impact this risk has on your R&D budget and time-to-market.

Therefore, we have deployed 7 CCD optical sorting machines to conduct 100% full inspection on every micro insert, thoroughly eliminating fatal defects like stripped threads, missing threads, and clogged holes.

Our value goes beyond providing parts; it lies in delivering engineering-level risk management. We analyze your plastic material properties (e.g., flow characteristics of PC, PA66) and recommend or custom-design specific micro knurl patterns (micro diamond, micro straight) to maximize pull-out force within an extremely limited contact area, while optimizing thermal parameters to avoid heat shock to nearby sensitive electronic components. Our factory is equipped with 300+ advanced machines and a team of 10+ engineers, with 15 years of experience serving 2,000+ corporate clients globally. Choosing Tingfeng means selecting a "zero-defect" guarantee for your precision projects.

• Wearable Medical Devices: Fastening for continuous glucose monitor (CGM) housings, hearing aid shells, and sleep tracking rings.
• High-End Consumer Electronics: Threaded connections for smartwatch strap lugs, TWS charging cases, and AR/VR headset frames.
• Precision Optics & Sensors: Assembly fixation for micro camera focus modules, medical endoscope tips, and micro sensor housings.