Is a 13/16 socket the same as 21mm?
No, a 1316 socket is not the same as a 21mm socket. The 1316 socket is a specific type of socket used for automotive applications, while the 21mm socket is a general-purpose metric socket size.
Explaining the Differences
The 1316 socket is a 12-point socket that is commonly used for removing and installing spark plugs in automotive engines. It has a hexagonal shape with 12 sides, and the distance between two parallel sides is 13mm. In contrast, the 21mm socket is a general-purpose metric socket that is used for a variety of applications, including automotive, plumbing, and construction work.
The key differences between the 1316 and 21mm sockets are:
- Size: The 1316 socket has a 13mm distance between parallel sides, while the 21mm socket has a 21mm distance between parallel sides.
- Shape: The 1316 socket has a 12-point hexagonal shape, while the 21mm socket has a standard 6-point hexagonal shape.
- Application: The 1316 socket is primarily used for spark plug removal and installation in automotive engines, while the 21mm socket has a wider range of applications.
It's important to use the correct socket size and type for a particular application to avoid damage to the fastener or the tool.
Conclusion
In summary, a 1316 socket and a 21mm socket are not the same. The 1316 socket is a specialized automotive tool, while the 21mm socket is a general-purpose metric socket. Understanding the differences between these two socket types is crucial for ensuring the proper removal and installation of components in automotive and other applications.
Is a 13/16 socket the same as 21mm?
13/16" or 21mm is a common interchangeable size for wheel bolts / lug nuts and spark plugs on older cars. I prefer to use 13/16" if I can as it fits tighter. 5-sided is also for bolts used on utility or manhole covers. 5 sided is most likely for a water valve or gas valve in a residential setting.
What socket is equivalent to 21 mm?
Wrench Conversion Chart – Metric to Standard (SAE/Inches)
| Metric Size (mm) | Closest Standard Size | Decimal Equivalent |
|---|---|---|
| 21mm | 13/16″ | 0.813″ |
| 22mm | 7/8″ | 0.875″ |
| 23mm | 29/32″ | 0.906″ |
| 24mm | 15/16″ | 0.938″ |
Is 13/16 bigger than 21mm?
21mm = just over 13/16 inch. 22mm = almost 7/8 inch. 23mm = 29/32 inch. 24mm = just over 15/16 inch.
What is a 1/3/16 socket in metric?
Metric to US Conversion Chart for Fasteners
| Metric (mm) | Inches (in.) | Closest Fraction* |
|---|---|---|
| 28 mm | 1.1024 in. | 1-1/8" |
| 30 mm | 1.1811 in. | 1-3/16" |
| 35 mm | 1.3780 in. | 1-3/8" |
| 40 mm | 1.5748 in. | 1-9/16" |
