Fastener Technology

Precision micro screws are widely used in smart wearables, sensors, optical instruments, security cameras and compact medical devices, mainly divided into machine screws and self-tapping screws. This article compares engagement principle, vibration resistance and applicable substrates of two thread types, lists thread solutions matching ABS, PC-GF, aluminum alloy and thin stainless steel via table

Insufficient hardness of M0.3~M2 micro screws causes thread slipping, excessive hardness leads to fracture during assembly. Residual magnetism of processed stainless micro screws interferes with smart wearable sensors and wireless charging modules. This article compares solution annealing hardness range & residual magnetic flux parameters of SUS201/304/316 micro screws via table, sorts full anneal

M0.3-M1.6 ultra-micro screws are divided into two crafts: thread-forming extrusion and thread-cutting tapping, with huge gaps in thread strength, assembly torque and matching sheet material. Wrong thread selection for smart watches, Bluetooth earphones and micro sensors leads to mass defects including thread slipping and screw fracture. This article compares mechanical thread parameters of two mic

M0.5-M2 ultra-fine micro screws are widely used in smart watches, Bluetooth earphones, hearing aids and micro endoscopes. Four mainstream materials include nickel-plated iron, SUS201, SUS304 and SUS316 stainless steel. This article compares hardness, wear resistance and salt spray parameters via table, formulates selection rules for indoor wearable and waterproof outdoor medical equipment, explain

Aiming at M0.5~M2 ultra-fine micro screws for wearable devices, hearing aids and camera modules, analyze three forming defects including thread burr, root crack and taper over-tolerance. Standardize micro thread roller tooth profile, rolling speed and wire annealing pre-treatment craft according to GB/T 196. Summarize sorting and full dimension inspection procedures to solve thread slipping and fi

Aiming at M0.5~M2 micro stainless steel & titanium screws for medical and consumer electronics, standardize full-set control procedures including constant temperature & humidity storage, vapor phase anti-rust packaging, batch turnover and long-term storage anti-rust. Distinguish storage parameters for three surface treatment parts: natural passivation, nickel plating and titanium alloy. Summarize

All process steps, salt spray judgment and production control are cited from GB/T5267.4-2009 Passivation of corrosion-resistant stainless steel fasteners, GB/T3098.6-2023 Mechanical properties of stainless steel bolts & screws, GB/T10125-2021 salt spray test standard. Target ultra-fine thread micro screws M0.6~M3 and medical precision connectors, sort out standardized full procedure including pre-

Guidelines for selection, installation, inspection standards and troubleshooting of M0.6–M3 micro screws for electronics, medical and precision instruments.

This guide introduces common materials and surface treatment processes of micro screws, helping users select proper products to improve assembly stability and service life of precision equipment.

Formulate exclusive warehouse management rules for 304,316,316L precision stainless steel fasteners, divide dry and wet storage zones, standardize material isolation storage, complete inspection, stacking, maintenance and delivery process, solve common discoloration and corrosion problems inside hardware warehouse.