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##### Asked by: Glafira Muzarev

hobbies and interests woodworking# What size is a #8 wood screw?

Last Updated: 10th January, 2020

Size | Major Thread Diameter* | |
---|---|---|

Decimal | Nearest Fractional Measurement | |

#8 | .164" | 5/32" |

#9 | .177" | 11/64" |

#10 | .190" | 3/16" |

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Likewise, what size is a #8 screw?

A #**8 screw size** is . 164 fraction of an inch. The diameters listed in the chart below are in fractions of an inch, so the #12 is just shy of 1/4 inch.

Subsequently, question is, how do you determine the size of a wood screw? So the **length** of a flat head **wood screw** is measured from the tip to the top of the head, but the **length** of a round head **screw** is measured from the tip to the bottom of the head. In the common **wood screw** the thread extends 2/3rds of the **length** of the **screw**.

People also ask, what does a #8 screw mean?

Their size is described as diameter, number of threads per inch (if used with a nut or in a threaded hole), and length in inches. In all cases, the larger the number, the larger the size. Consequently a #**8 screw** is larger than a #4 **screw**, just as a 3 inch **bolt** is larger than a 2 inch **bolt**.

Is a #8 or #10 screw bigger?

**Screws** with a diameter smaller than 1/4" have a nominal size indicated by a number (e.g. #**8 or #10**). 1/4" and **larger** diameters are shown as inches. So, a 1/4-20 **screw** has a 1/4" diameter (. 250") with 20 threads per inch.