# What is the diameter of an m3 bolt?

Asked By: Eneas Maessen | Last Updated: 8th June, 2020

Category:
science
space and astronomy

Tap size | Basic major dia (mm) | Basic major dia (inch) |
---|---|---|

M2.5 x 0.45 | 2,5mm | .0984 |

M3 x 0.5 | 3mm | .1181 |

M3.5 x 0.6 | 3,5mm | .1378 |

M4 x 0.7 | 4mm | .1575 |

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Similarly, you may ask, what size is an m3 hole?

For examples, the clearance **hole** for a **M3** screw has 3.2 mm or 3.5 mm diameter.

Subsequently, question is, is m3 the same as 3mm? **M3** is usually **3mm** x . 5, the second number (.

Also question is, what is the diameter of a 6mm bolt?

Metric Shoulder Bolt Dimensions

Shoulder Diameter (A) | Thread (C) | Thread Length (D) |
---|---|---|

6mm | 5mm x 0.8 | 9.75mm |

8mm | 6mm x 1.0 | 11.25mm |

10mm | 8mm x 1.25 | 13.25mm |

12mm | 10mm x 1.5 | 16.4mm |

How do you measure the diameter of a bolt?

To **measure** the **diameter** of screws and **bolts**, you **measure** the distance from the outer thread on one side to the outer thread on the other side. This is called the major **diameter** and will usually be the proper size of the **bolt**.