Most commonly used size M3 M3 x 5, M3 x 6, M3 x 8, M3 x 10, M3 x 12, M3 x 14, M3 x 16, M3 x 18, M3 x 20, M3 x 25, M3 x 30 mm button hex bolts nuts. According to the standardized metric system. And the average error is less than 0.01 mm. A total of 11 different sizes can meet your different needs
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14.9 Grade Alloy Steel Durable heat treated hardened grade 14.9 alloy steel, higher hardness, not easy to break, and with an improved tensile strength of 1.45~1.49GPa.
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Daliy Application A wide range of uses and for professionals, amateurs, landlords, craftsmen, other DIY. The kit is perfect for replacing broken and missing bolts. If you are crazy about the missing bolts, it is a perfect friend for you. The set has many different sizes that can meet the maximum requirement for you.
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