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The product's brand as the YZ, models for DIN7604, nominal length is 8 ~ 20 mm, the thread tolerance is 6 g, black surface treatment for oxidation, material is carbon steel 22 h, product specifications for the m8 - m80, thread specifications for m8 - m80, Allen process for cold heading.Metric system is complete, high quality products, affordable, door-to-door throughout the country.
outer hexagonal plug
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