With smartphones maturing, TWS earbuds, smartwatches, AR glasses and bands have become the fastest-growing consumer categories, driving steady demand for M1.0-M1.6 micro screws. Compact in size, these products rely almost entirely on micro screws for internal fixation.
A pair of TWS earbuds and charging case typically uses 4-8 micro screws; a smartwatch needs 6-10 to secure the mainboard, sensors and case back; AR glasses may use 10+ due to temple and optical module structures. With hundreds of millions of units shipped annually, demand reaches billions of micro screws.
Wearables are worn against skin, requiring sweat corrosion resistance and burr-free appearance. Automated assembly demands extremely high dimensional consistency and smooth feeding. Heads are often low-profile with torx or phillips drives, and some premium models use tamper-resistant structures.
Brand customers prefer suppliers with optical full inspection, automatic counting packing and fast sampling for flexible multi-model, small-batch delivery. Micro screw makers are upgrading from simple processing to "micro fastening solutions."
Jiali Hardware supplies M0.8-M3 micro screws for TWS, wearable and smart hardware automated assembly.