M 10 butter nipple uses a wrench of 14 or 17. The corresponding wrench for the screws and nuts we usually use is. 10 mm screws and nuts are all 17 mm, some hexagon bolts are 14 mm, and some are 17 hexagon bolts. But all nuts are 17mm. Nut not crossed by 14 mm wrench.

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For bolts of M 10, the torques to be tightened with a torque wrench are generally 17.7 and 22.6Nm. Without using a torque wrench, take an open-ended wrench as an example, and tighten it with a matching wrench with one hand until it can't be tightened. Because the length of the wrench is designed according to the tightening torque of the bolt of this specification when it is used with one hand. The size of the wrench is determined according to the size of the hexagon opposite to the bolt. No matter what wrench (opening, plum blossom, sleeve, etc. ), the specifications of the corresponding bolts are the same.