Stainless steel straight tooth screws M4 flat-head quick-release screws, CNC screws

Precision Instruments / Optics / Automation Industry

Application Scenarios

Core Production Characteristics

• Ultra-high Precision Control

  Dimensional tolerance reaches ±0.003mm, with strict control over form and position tolerances including coaxiality, perpendicularity, and circular runout, ensuring installation accuracy and avoiding equipment jamming or measurement errors caused by minor deviations.

  Ultra-precision machining equipment (e.g., 5-axis machining centers, ultra-precision grinders) is adopted, combined with high-precision testing equipment such as laser interferometers and roundness meters, to achieve closed-loop precision control in each process and guarantee product accuracy.
• Low Stress & Stability Assurance

  Low-stress machining processes are applied to reduce internal stress and prevent product deformation during use, ensuring long-term operational stability of equipment.

  Annealing, aging treatment, and other processes are used to eliminate machining stress; meanwhile, processing flows are optimized to avoid material damage from over-processing, ensuring mechanical properties and dimensional stability.
• Customized Structural Design & Machining

  Special structures including special shapes, multi-step profiles, double-end threads, limit shoulders, and special drive slots are customized according to specific equipment requirements.

  For example, robot joint screws require high-precision step positioning, while optical lens screws need ultra-thin heads and anti-loosening structures.

  Customized machining molds and tools are used to accurately control dimensions and positional accuracy, ensuring perfect matching between products and equipment.
• Improved Surface Quality & Wear Resistance

  Surface finish reaches Ra ≤ 0.4μm, free of burrs and scratches, so as not to affect assembly accuracy and operational stability.

  Surface strengthening processes (e.g., nitriding, hard chrome plating) enhance wear resistance and extend service life, meeting the demands of long-term, high-frequency operation of precision instruments and automation equipment.

General Core Characteristics of CNC Machined Screws

• Extremely High Precision: Standard tolerance ±0.01mm, precision version up to ±0.001mm, with accurate, clearance-free thread fitting.
• High Consistency: Program-controlled, with high uniformity in batch dimensions, form and position tolerances, and surface quality.
• Flexible Customization: No mold opening required; fast switching for non-standard pitches, special heads, multi-step profiles, and special slot types.
• Wide Material Compatibility: Capable of machining stainless steel, titanium alloy, aluminum alloy, copper alloy, high-temperature alloy, etc.
• Flexible Efficiency & Batch Size: Suitable for small-batch prototyping and medium-batch customization, with fast switching between single-piece and multi-variety production.

CNC vs. Traditional Screws (Thread Rolling / Cold Heading)

We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.

Our maximum processing outer diameter is 60, and the minimum control tolerance is 0.001. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, which can effectively provide customers with the best technical solutions.

Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.

Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.

Our customers include , bo-sch, Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.