When it comes to choosing between 6 point vs 12 point sockets, there are a few key factors to consider. The main difference between the two is the number of splines inside the socket that grip the fastener. Let’s take a closer look at the pros and cons of each type.
Page Contents
- 1 What are 6 Point Sockets?
- 2 Advantages of 6 Point Sockets
- 3 Disadvantages of 6 Point Sockets
- 4 What are 12 Point Sockets?
- 5 Advantages of 12 Point Sockets
- 6 Disadvantages of 12 Point Sockets
- 7 6 Point vs 12 Point Sockets Comparison
- 8 When to Use 6 Point Sockets
- 9 When to Use 12 Point Sockets
- 10 Can You Use a 12 Point Socket on a Hex Bolt?
- 11 Conclusion
What are 6 Point Sockets?
6 point sockets, also known as hex sockets, have 6 splines or lobes inside that grip the 6 sides of hex fasteners like hex nuts and bolts. The hex shaped cavity allows direct contact between the wrench and fastener for maximum torque transfer.
Some key features of 6 point sockets include:
- Designed for use with hex fasteners
- 6 internal splines grip 6 sides of fastener
- Allows high torque transfer and strength
- Less likely to round off fasteners
- Engages entire width of fastener for stability
Advantages of 6 Point Sockets
There are several advantages that make 6 point sockets a popular choice among automotive technicians and mechanics:
High Torque Transfer
The 6 internal splines of a 6 point socket can grip and turn the entire width of a hex fastener. This provides more contact surface area for increased turning force and torque transfer compared to 12 point sockets. The hex shape also allows the wrench to sit flush on the fastener for stability.
Less Fastener Rounding
Because a 6 point socket grips the flats of the entire fastener, there is less chance of slippage and rounding off the corners of hex nuts and bolts. The thick splines apply force evenly across the flats to turn the fastener properly. This helps prevent costly damage to fasteners.
Durability
With fewer internal moving parts, 6 point sockets tend to be very durable and long-lasting. The simple hex shape is able to handle repeated high torque force without much wear and tear over time. Professional auto mechanics tend to prefer the sturdiness of 6 point sockets for frequent use.
Works with Stubby Wrenches
Because a 6 point socket only needs to grip the flats of a hex bolt or nut, it can be used with stubby combination wrenches. Stubby wrenches have a shorter handle and compact head that allows them to fit into tight spaces. 6 point sockets complement stubby box end wrenches perfectly in confined areas.
Disadvantages of 6 Point Sockets
While 6 point sockets have many benefits, they also come with some downsides:
Only For Hex Fasteners
The hex shaped cavity means 6 point sockets can only be used with hex shaped bolt heads and nuts. They cannot accommodate 12 point fasteners or other shapes like spline, square, tri-lobe, etc. Separate socket sets are needed for different fastener types.
Potential to Round Hex Corners
While less likely, it is still possible to round off the hex corners of fasteners with 6 point sockets, particularly if worn or poorly machined. Applying too much torque at an angle can cause the splines to cut into the corners of the nut or bolt head, leaving it unusable.
Not Ideal for High Production
The single orientation of 6 point sockets makes them less suited for high volume assembly line operations. Workers must orient the socket properly each time before fastening, which slows down the work. Other socket types allow faster spinning on of fasteners.
What are 12 Point Sockets?
12 point sockets have 12 internal splines that can grip the sides or corners of 12 point fasteners. The combination of splines allows gripping in multiple orientations. Key features include:
- Compatible with 12 point fasteners
- 12 internal splines grip sides or corners
- Allows engagement at multiple angles
- Faster to attach fasteners in repetitive jobs
- Rounding less likely due to multi-point contact
Advantages of 12 Point Sockets
Let’s look at some of the main advantages of using 12 point sockets:
Versatility
The 12 splines of a 12 point socket allow it to grip 12 point fasteners in 12 different orientations. This allows engaging the fastener at any angle, which can be helpful for accessing cramped spaces. Only 6 orientations are possible with 6 point sockets.
Speed
On assembly lines and in factories, 12 point sockets can help workers quickly power on fasteners without orienting them first. The multiple engagement angles allow spinning the socket on quickly. This boosts workflow efficiency and productivity.
Less Rounding
Because they grip with 12 splines instead of 6, 12 point sockets apply torque from multiple contact points on the fastener. This distributes force more evenly and reduces the chances of rounding off corners. Less rework is needed on damaged fasteners.
Works on Any 12 Point Fastener
12 point sockets are universally compatible with any fastener that has 12 points. This includes most common nut and bolt types, making them highly versatile. One socket set can handle all 12 point fastener jobs.
Disadvantages of 12 Point Sockets
Some potential drawbacks to consider with 12 point sockets:
Lower Torque Capability
Because force is distributed over 12 contact points, 12 point sockets cannot focus as much torque force as 6 point sockets. The smaller surface area of the splines also means less grip and turning power. Not ideal for heavy duty situations.
Higher Wear Over Time
Having more internal splines and contact points leads to increased wear and tear over time with heavy use. Metal filings can also build up inside from the rotating engagement. Higher maintenance may be needed.
Potential Cam-Out
Cam-out happens when excessive torque causes the socket to jump off or slip off the fastener, usually damaging it. The multiple spline contact points of 12 point sockets increases cam-out risk under high torque loads.
Not For Hex Fasteners
12 point sockets can only grip 12 point fasteners and do not work with hex bolt heads or nuts. Separate 6 point socket sets would be needed to handle hex jobs.
6 Point vs 12 Point Sockets Comparison
Let’s compare some of the key differences between 6 point and 12 point sockets:
| Factor | 6 Point Socket | 12 Point Socket |
|---|---|---|
| Number of Splines | 6 | 12 |
| Fastener Compatibility | Hex Only | 12 Point Only |
| Torque Transfer Ability | Higher | Lower |
| Engagement Orientations | 6 Positions | 12 Positions |
| Speed of Attachment | Slower | Faster |
| Durability Over Time | Higher | Lower |
As shown in the comparison, 6 point and 12 point sockets each have pros and cons that make them better suited to particular applications and use cases.
When to Use 6 Point Sockets
Here are the best applications for using 6 point sockets:
- Heavy duty repair jobs requiring maximum torque
- Large fasteners that need extra gripping power
- Lug nuts and bolts that require torque specs to be met
- Confined spaces where the wrench must engage the bolt at a right angle
- Any job involving hex head bolts or nuts
- Automotive repair shops and commercial garages
When to Use 12 Point Sockets
Here are situations where 12 point sockets work best:
- Assembly lines and manufacturing plants
- Repetitive fastener driving where speed is important
- Accessing fasteners at odd angles
- Reducing rounding of aged or worn fasteners
- Working with any 12 point screw heads or nuts
- Home DIYers working on light duty tasks
Can You Use a 12 Point Socket on a Hex Bolt?
Because of the difference in splines, you cannot use a 12 point socket directly on a hex bolt or nut – the shapes will not match up. However, in a pinch, a 12 point socket can grip the points of the hex fastener well enough to break it loose or snug it up if no 6 point socket is available. Just be extra careful not to round off the hex points in the process.
Conclusion
In summary, 6 point and 12 point sockets serve different fastener driving needs. 6 point sockets are best for high torque hex jobs where maximum turning force is needed, like automotive repair or commercial construction. 12 point sockets excel at speedily driving large volumes of 12 point fasteners in manufacturing and assembly work. For the average DIYer or home mechanic, either socket type can handle general tasks as long as matched to the right fasteners. Keeping both 6 point and 12 point socket sets on hand provides the versatility to tackle a full range of jobs.