Dongguan DaLang Chunqing Precision Hardware Factory, established in 2004, and Chunqing Hardware Electronics Co., Ltd., founded in 2018, specialize in manufacturing high-end precision fasteners. Our products serve industries such as construction, electronics, toys, automotive, and sports equipment.
Our factory is equipped with 30 multi-function cold forging machines, 50 single-mode machines, 40 thread rolling machines, 3 self-tapping machines, 63 automatic lathes, and other supporting equipment like lathes and drilling machines.
We have a highly skilled R&D team and quality control experts, alongside advanced fastener production technologies. Every production process is strictly controlled to ensure each product meets quality standards before moving to the next stage.
Our testing equipment includes:
Hardness testers (HV5-HV30, HV0.3-HV1, Rockwell Hardometer)
Universal testing machine
50-ton tensile testing machine
Neutral salt spray test machine
Environmental protection checks (Cr+6)
Failure torque testing machine
Torsional dynamometer
Hydrogen embrittlement test plate
Head thickness gauge, film thickness gauge
Callipers, micrometers, bolt gauges, ring gauges, diameter gauges, etc.
We ensure all products meet client specifications and quality requirements using professional testing standards.
We manufacture fasteners in various materials, including carbon steel, alloy steel, stainless steel, copper, and aluminum, ranging from M1.5 to M16, lengths from 2.0mm to 180mm, and grades 4.6 to 12.9. Our main products include standard fasteners (hex bolts, cap bolts, flange bolts, carriage bolts, self-tapping screws, drywall screws) and custom fasteners (step bolts, automotive seat bolts, airbag riveting bolts, through-hole rivet bolts, lock bolts, bicycle bolts).
Our factory is certified with ISO 9001: 2015 and IATF 16949, ensuring stable quality and efficient production.
We pride ourselves on being a reliable, honest, and loyal partner. Our ultimate goal is mutual satisfaction and a win-win outcome for both sides.
We welcome you to visit our factory and are happy to assist with any inquiries or needs.
Your satisfaction on our work and double win of both sides are our final aim.
Welcome to visit our factory, and we would be very pleased to assist all your query and demanding.
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