The M3 DIN Automotive Precision Parts Lock Nut is a compact and high-strength
Mini screw-grade fastener developed for engine compartment and chassis micro-connections. The micro body with an outer diameter of 5.5 mm and a height of 2.4 mm integrates an all-metal locking ring, which can provide a repeated locking force of 5 N·m on the M3 bolt without damaging the thread. It is a common
Micro Screws solution in automotive ECUs and sensor brackets.
As a member of the Precision screw family, the thread accuracy is 6H, and the locking ring ovality is ≤0.02 mm; the surface is treated with zinc-nickel alloy + transparent passivation, and there is no red rust after 1000 h of salt spray. The pre-coated microcapsule glue has a torque attenuation of <3% after a temperature cycle of −40 °C~+150 °C, ensuring long-term anti-loosening.
After passing ASTM F837 certification, the nut can be directly used as
Aerospace Micro Screws for satellite propulsion valves and drone servos. It weighs only 0.8 g but can remain locked under 30 g vibration and space-grade thermal shock, providing dual reliable protection for lightweight spacecraft and high-performance cars.
Yijun specializes in the production of M0.5-M3 micro Precision Screws, and supports customization of various models of M0.5-M3 for this product or other products
Product advantages
In today's industrial field, high-precision micro screws are small but play an indispensable and key role. As a leading enterprise in the industry, Shanghai Yijun focuses on the production of high-precision micro screws and is committed to providing excellent fastening solutions for various industries. With excellent product quality, a wide range of applications, and thoughtful customer service, the company has established a good reputation in the field of high-precision micro screw production and won the trust and support of many customers.
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The company always adheres to customer-centricity and provides customers with a full range of high-quality services. From the moment the customer raises a demand, the professional customer service team will respond quickly and communicate with the customer in depth to understand their specific needs. The technical team is fully supportive, from the development of special specification screws to the customization of surface treatment processes, providing drawing design, sample proofing, and batch production full-process services to ensure that the most suitable products are tailored for customers.
Factory display
The company has a team of senior engineers and professional technicians who have rich industry experience and superb technology, and have in-depth research and unique insights into the production process of micro screws. From the strict screening of raw materials, to every step in the production process, to the final quality inspection, the team strictly controls to ensure that every micro screw meets the highest quality standards.
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