# What is a number 8 wood screw?

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## What size is a number 8 wood screw?

Wood Screw Diameters

Decimal Nearest Fractional Measurement
#6 .138″ 9/64″
#7 .151″ 5/32″
#8 .164″ 5/32″

## 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.

## What is a No 8 screw in metric?

Metric Imperial Screw Conversion Chart

Gauge Metric diameter (mm) Pilot Hole size (mm)
8 4 2.5
10 5 3
12 5.5 3.5
14 6.5 4

## How do I know what size screw I need?

The general rule of thumb is that the screw should enter at least half the thickness of the bottom material, e.g. 3/4″ into a 2 x 4. The other factor is the screw’s diameter, or gauge. Screws come in gauges 2 through 16. Most of the time you’ll want to go with a #8 screw.

## What size is a #8 drill bit?

The closest match you can get to the diameter of a #8 screw without the threads is a 1/8” straight drill bit. This number translates to 0.125” or 3.175 mm.

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## What is an 8 32 screw?

8-32: 0.1640 or 41/250 in diameter; 32 threads per inch.

## What diameter is 8 gauge screw?

The #8 gauge screw has a major diameter of 0.17″ and 8 TPI.

## What are wood screw sizes?

Screw sizes are designated by a number that indicates the diameter and the length of the screw in inches (Table 10-2). The smallest diameter screw is 0, and the largest commonly available is 24. For bench work, the most useful sizes are 4 through 12. Of those sizes, 6, 8, and 10 are probably used more than any others.

## How do wood screw sizes work?

A screw for wood is sized by two distinct numbers, first is the gauge of the screw which is the diameter. This means, the larger the number the larger the diameter. Therefore, a number 12 screw is larger than a number 4 screw.