Features ▷ The nut is made of 4.8 carbon steel, which is very durable. The thread is clear and precise, it can bear the force evenly and not slip during rotation. ▷ Exquisite workmanship, the surface of the nut is smooth, no burrs, no worry about hurting your hands when using, thereby improving the efficiency. work. ▷ It & rsquo; s very easy; Using the nut, just tap the nuts into the correct size holes and the claws will hold them in the correct position. ▷ This nut box is ideal for professionals and DIY enthusiasts alike, the kit is perfect for replacing lost and lost. ▷ We use high quality transparent plastic box. and hardness & oacute; High to contain the nuts, which is easy to use. organize. ▷ Measured; by standard vernier. Error as small as 0.01mm SpecificationMaterial: carbon steel Model: M3 / M4 / M5 / M6 / M8 Attention & spades; Pay attention & agrave; security when in use, it is preferable to be exploited; by professionals & spades; Keep out of the reach of children to avoid