Pool Cue Joint Protectors Guide – How to Choose the Right Thread Type
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Joint protectors are small but important accessories for pool cues. They protect the threaded joint of your cue when the shaft and butt are separated during storage or transport.
Without joint protectors, dust, dirt, and small impacts can damage the threads or pin of the joint. Over time this may cause improper alignment or difficulty when assembling the cue.
Using the correct joint protectors helps keep your cue in excellent condition and ensures a smooth connection between the shaft and butt every time you play.
What Do Joint Protectors Do?
Joint protectors are designed to cover and protect the threaded parts of a cue joint.
They typically include two pieces:
• one protector for the butt pin
• one protector for the shaft threads
These small caps help prevent several common problems:
• thread damage
• dirt entering the joint
• bending or impact damage to the joint pin
• unnecessary wear during transport
For players who regularly carry cues in a case, joint protectors are one of the easiest ways to extend the life of their equipment.
Why the Correct Thread Type Matters
Pool cue joints come in different thread types, and joint protectors must match the exact thread pattern of your cue.
Using the wrong thread type can cause:
• protectors that do not screw in properly
• cross-threading damage
• loose or unstable fit
Because of this, it is important to identify the correct joint type before purchasing joint protectors.
Common Pool Cue Joint Types
Several joint thread types are widely used in the billiards industry.
The most common ones include:
5/16 x 18
One of the most widely used joint types.
Common on many production cues and beginner cues.
5/16 x 14
Very similar to 5/16x18 but with fewer threads per inch.
Often used on cues with stainless steel joints.
3/8 x 10
A larger diameter pin with deeper threads.
Popular in many custom cues and wood-to-wood joint designs.
Radial
A special thread design that allows a tight, precise fit between shaft and butt.
Used in many modern performance cues.
Uni-Loc
A quick-release joint system that allows the cue to be assembled with only a few turns.
Different from traditional threaded joints.
How to Identify Your Cue Joint
The easiest way to identify the correct joint protector is to compare your cue pin with reference images of common joint types.
On the ASKA Billiards website, joint protectors include images showing the joint pins used for different thread types. This helps players visually compare their cue joint with the examples and choose the correct thread pattern.
To find your joint type:
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Unscrew the shaft from the cue butt
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Look at the joint pin on the butt
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Compare the thread pattern and size to reference images
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Match the correct thread type before purchasing joint protectors
This simple comparison makes it much easier to avoid ordering the wrong protector set.
Materials Used in Joint Protectors
Joint protectors are made from several materials depending on style and durability.
Common materials include:
Aluminum
• lightweight
• durable
• often anodized in different colors
Plastic or composite
• affordable
• lightweight
• commonly used on many production cues
Wood
• traditional appearance
• often matched to the cue design
All materials serve the same purpose of protecting the joint threads and pin.
Are Joint Protectors Necessary?
While cues can technically be transported without joint protectors, most experienced players strongly recommend using them.
Joint protectors are especially useful when:
• carrying cues in a case
• traveling to tournaments
• storing cues for long periods
• protecting custom or expensive cues
For such a small accessory, they provide valuable protection for one of the most important parts of a pool cue.
Final Thoughts
Joint protectors are simple accessories that help protect the threaded connection between the shaft and butt of a pool cue. Choosing the correct thread type—such as 5/16x18, 5/16x14, 3/8x10, Radial, or Uni-Loc—ensures a secure fit and proper protection.
By comparing your cue’s joint pin with reference images and selecting the matching thread type, you can easily find the right joint protectors and keep your cue in excellent condition.