What is the outside diameter of a #6 screw?
Daniel Rodriguez
Published Mar 13, 2026
What is the outside diameter of a #6 screw?
American Screw Sizes
| THREAD DIAMETER | ||
|---|---|---|
| Size | Nearest Fraction | Millimeter |
| #5 | 1/8 | 3.1 |
| #6 | 9/64 | 3.3 |
| #8 | 5/32 | 4.2 |
What is the shear strength of a screw?
Shear strength is defined as the maximum load that can be supported prior to fracture, when applied at a right angle to the fastener’s axis. A load occurring in one transverse plane is known as single shear. Double shear is a load applied in two planes where the fastener could be cut into three pieces.
What size is a #6 bolt?
US Machine Screw Diameters
| Size | Nominal Thread Diameter | |
|---|---|---|
| Decimal | Nearest Fractional | |
| #6 | 0.138″ | 9/64″ |
| #8 | 0.164″ | 5/32″ |
| #10 | 0.190″ | 3/16″ |
What is the diameter of a #6 sheet metal screw?
US Sheet Metal Screw Diameters
| Size | Thread Diameter | |
|---|---|---|
| Decimal | Nearest Fractional | |
| #6 | .138″ | 9/64″ |
| #8 | .164″ | 11/64″ |
| #10 | .190″ | 3/16″ |
What is a #6 screw?
A 6 gauge screw will have a head almost equal to 6 mm wide. Gauge= (Head diameter in sixteenths of an inch X 2 ) – 2. E.g. 5/16 head times two equals 10, minus two equals 8. The Gauge is 8. The above formula means that for imperial gauge, the diameter in mm is almost half the gauge.
How thick is a #6 screw?
| Wood Screw Dimensions, Sizes, Head Diameters & Threads per Inch | ||
|---|---|---|
| Nominal Screw Size | Threads per Inch | Basic Diameter of Screw |
| 5 | 20 | 1/8 |
| 6 | 18 | 9/64 |
| 7 | 16 | 5/32 |
What is the shear strength of a #8 wood screw?
Is there a difference in strength?
| SHEAR | ||
|---|---|---|
| * 16d sinker | .148” | 112 lb |
| * 16d box (nail gun) | .131” | 93 lb. |
| * #6 screw | .138 | 70 lb. |
| * #8 screw | .164 | 89 lb. |
What 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.
What does M6 mean?
M6 Threads M6 refers to a metric 6 mm screw. The outside diameter of the threads is 6 mm. The standard metric rack screw is actually an M6 x 0.1 mm. The number 0.1 mm refers to 0.1 threads per millimeter. You can identify an M6 screw by measuring the diameter at slightly more than 7/32″ (0.228″).
What diameter is 6 32 screw?
0.1380 inches
#6-32 UNC screw The #6-32 UNC is a UTS screw specifying a major thread diameter of #6 which is defined as 0.1380 inches (3.51 mm); and 32 tpi (threads per inch) which equates to a thread pitch of 0.031250 inches (0.7938 mm).
What size hole to drill for a #6 screw?
3/32″
Drill Bit Sizes For Pre-Drilling For Screws Most Commonly Used Sizes In Bold
| Screw Size | Pilot hole size for hardwoods* | Pilot hole size for softwood** |
|---|---|---|
| #5 | 5/64″ | 1/16″ |
| #6 | 3/32″ | 5/64″ |
| #7 | 3/32″ | 5/64″ |
| #8 | 1/8″ | 3/32″ |
What is a 6 32 screw?
#6-32 UNC screw The #6-32 UNC is a UTS screw specifying a major thread diameter of #6 which is defined as 0.1380 inches (3.51 mm); and 32 tpi (threads per inch) which equates to a thread pitch of 0.031250 inches (0.7938 mm). It is by far the most common screw found inside computer cases.
