## What is the pitch diameter?

The pitch diameter (also known as the effective diameter) is used to determine whether two threaded parts could be successfully mated together. Pitch diameter refers to the width of the cylinder as it intersects the midpoint of the major and minor diameters, known as the pitch line.

### Is 10mm the same as 3 8?

10mm = just over 3/8 inch. 11mm = almost 7/16 inch. 12mm = almost 15/32 inch (= almost 1/2 inch)

#### What is basic major diameter?

The major diameter of a thread is the diameter of the imaginary co-axial cylinder that just touches the crest of an external thread or the root of an internal thread. The minor diameter is the diameter of an imaginary cylinder that just touches the roots of an external thread and (or) the crests of an internal thread.

**What is major diameter and minor diameter?**

Major Diameter: The largest diameter of the thread of the screw or nut. The term “major diameter” replaces the term “outside diameter” as applied to the thread of a screw and also the term “full diameter” as applied to the thread of a nut. Minor Diameter: The smallest diameter of the thread of the screw or nut.

**Are all 10mm bolts the same?**

You can have a 10mm head on different sized bolts. Remove the bolt and bring it with you to the hardware store when you go to buy the new one, and test it on various nuts to see what size it is. You have to watch out because metric bolts in the appropriate size (probably M6 or so) come with different thread pitches.

## How do you calculate pitch diameter?

To calculate the pitch diameter, one must imagine a cylinder whose diameter exists at the point where the thread groove width and the thread crest width are both equal to one another and equal to half the nominal pitch of the thread. The diameter of this imagined cylinder is the pitch diameter.

### How many mm is 3/8ths of an inch?

Conversion table inches to mm

Dimensions — Inches to Metric | ||
---|---|---|

0.375” | 3/8” | 9.53 mm |

0.438” | 7/16” | 11.13 mm |

0.500” | 1/2” | 12.70 mm |

0.563” | 9/16” | 14.30 mm |

#### Is 16mm and 5/8 the same?

16 mm = . 629 inches and 5/8 = . 625 For all intents and purposes, they are exactly the same.

**What is 5/16ths of an inch?**

Where is 5/16 of an inch on a ruler?

Fraction | Decimal | Millimeters |
---|---|---|

3⁄16” | 0.1875 | 4.7625 |

1⁄4” | 0.25 | 6.35 |

5⁄16” | 0.3125 | 7.9375 |

3⁄8” | 0.375 | 9.525 |

**What is the formula for depth of thread?**

Example: Calculate the pitch, depth, minor diameter, and width of flat for a ¾-10 NC thread. P = 1 / n = 1 / 10 = 0.100 in. Depth = . 7500 x Pitch = .

## What size is M8?

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

M6 x 1 | 6mm | .2362 |

M8 x 1.25 | 8mm | .3150 |

M8 x 1 | 8mm | .3150 |

M10 x 1.5 | 10mm | .3937 |

### What is the minor diameter of thread formula?

According to page 1528 of The Machinery’s Handbook (29th Ed.), that formula is given as A_S=(π/4)*((d_m+d_p)/2)^2 where the pitch diameter is d_p=d−0.649519×P, and the minor diameter is d_m=d−1.299038×P.

#### What is a fraction of an inch called?

A inch is fractioned in two halves that, in its turn, also are divided in its halves and so on successively. This is the progression that the division of fractions of inch results: 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128 , where each new term represents half of the previous one. (

**What size socket is between 9mm and 10mm?**

Wrench Size And Conversion Table

Inches | Millimeters | Spanner |
---|---|---|

0.354 | 9mm | 9mm |

0.375 | 3/8 AF | |

0.394 | 10mm | 10mm |

0.433 | 11mm | 11mm |

**What is 10mm in fraction?**

Millimeters to inches conversion table

Millimeters (mm) | Inches (“) (decimal) | Inches (“) (fraction) |
---|---|---|

10 mm | 0.3937 ″ | 25/64 ″ |

20 mm | 0.7874 ″ | 25/32 ″ |

30 mm | 1.1811 ″ | 1 3/16 ″ |

40 mm | 1.5784 ″ | 1 37/64 ″ |

## How do you measure less than inches?

To measure distances smaller than an inch, they use fractions of an inch. You know, like a half-inch, a quarter-inch etc. The standard units go down to 1/32th of an inch (by repeated halving)… but there is no reason not to keep going (except the numbers get unwieldy). There was the “thou” which was 1/1000th of an inch.

### What is 6 16ths of an inch?

In summary, 6/16 inches is the same as 0.375 inches and 6/16 inches is also the same as 0.03125 feet.

#### How do you write measurements in inches?

The international standard symbol for inch is in (see ISO 31-1, Annex A) but traditionally the inch is denoted by a double prime, which is often approximated by double quotes, and the foot by a prime, which is often approximated by an apostrophe. For example; three feet, two inches can be written as 3′ 2″.

**What’s the same size as a 10mm?**

Standard / Metric Wrench Conversion Chart

Bolt Diameter | Standard | Metric |
---|---|---|

3/16″ | 3/8″ | 10mm |

1/4″ | 7/16″ | 11mm |

5/16″ | 1/2″ | 13mm |

3/8″ | 9/16″ | 14mm |

**What size bolt does a 10mm nut fit?**

Size Chart

Bolt size | Size | Tolerance |
---|---|---|

9mm | 9.03 | |

3/8″ | 9.55 | |

M6 | 10mm | 10.04 |

M7 | 11mm | 11.04 |

## What size is a standard M8 screw?

Metric clearance and tapping drill hole sizes.

Size | Clearance Hole mm | Tapping Drill (std Pitch) |
---|---|---|

M6 | 6.5 | 5.0 mm |

M8 | 9 | 6.75 mm |

M10 | 11 | 8.5 mm |

M12 | 14 | 10.25 mm |

### What size is bigger than 3 4?

SAE to Metric Conversion Chart

SAE Size | Metric Size | Inches Decimal |
---|---|---|

23/32″ | 0.719 | |

19mm | 0.748 | |

3/4″ | 0.750 | |

25/32″ | 0.781 |

#### How do you find the major diameter?

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.