Not sure which joint pin your pool cue uses?
Use the Hillbilly Cues Joint Pin Identifier to compare common cue joint pins and identify the type used on your cue.
Identifying your joint pin is an important first step when shopping for replacement shafts or discussing cue repairs.
Need help identifying your joint? Holler Out to Hillbilly Cues! We’re happy to help.
What’s Your Connection? Understanding Pool Cue Joints & Hit Characteristics
A Hillbilly Cues Guide to Choosing the Right Joint for Your Game
Ever wonder why one pool cue delivers a sharp, crisp hit while another feels smooth, solid, or slightly muted?
Part of that difference can come from the joint connecting the shaft to the butt. But there’s more to it than simply choosing a particular thread size.
At Hillbilly Cues, we offer 10 joint configurations for our custom ABSOLUTE ZERO carbon-fiber playing shafts and BIG BERTHA jump/break shafts.
Whether you’re upgrading an old favorite or exploring a different setup, understanding these connections can help you make an informed decision.
First, What Does a Pool Cue Joint Actually Do?
A cue joint has two primary jobs: securely connecting the shaft to the butt and maintaining consistent alignment whenever the cue is assembled.
The pin design, joint-face materials, inserts, and construction can also influence vibration and the feedback you feel after striking the cue ball.
Players commonly describe this feedback using four terms:
- Soft or Muted: A smoother impact sensation with less sharpness or vibration reaching the grip hand.
- Firm or Solid: A substantial, connected sensation without noticeable looseness or unwanted vibration.
- Hard or Crisp: A sharper, more immediate impact sensation, sometimes accompanied by a higher-pitched sound.
- Lively or Responsive: Noticeable feedback that helps the player sense the impact.
These descriptions are subjective. The same joint can feel different when paired with different shafts, tips, joint collars, or cue butts.
A harder-feeling hit doesn’t necessarily mean a more powerful or accurate shot.
Jump to a Joint Type
Select a joint to view its features, advantages, disadvantages, and hit characteristics.
THE 10 HILLBILLY CUES JOINT OPTIONS
1. 5/16 × 14 — The Traditional Connection
Commonly found on: Joss, Schon, and various custom cues.
This traditional connection uses a 5/16-inch pin with 14 threads per inch. It is frequently found with piloted stainless-steel joints, although flat-faced versions also exist.
Typical Hit Characteristics
When paired with a traditional piloted steel joint, players often describe the hit as firm, crisp, and responsive. Flat-faced versions using different materials can feel noticeably different.
Advantages
- Established, time-tested joint design.
- Available on many respected production and custom cues.
- Good aftermarket shaft support.
- Can provide a distinctly firm feel in stainless-steel configurations.
Disadvantages
- Slower assembly than quick-release joints.
- Piloted and flat-faced configurations must be distinguished.
- Not interchangeable with 5/16 × 18.
Why Choose It?
An excellent option for owners of compatible Joss, Schon, and other traditional cues looking to upgrade their shafts without modifying the original butt.
2. 5/16 × 18 — The Versatile Standard
Commonly found on: Meucci, Players, Action, Rage, and numerous production cues.
This connection shares the 5/16-inch pin diameter of the previous joint but uses 18 threads per inch, producing a finer thread pitch.
Typical Hit Characteristics
Frequently described as smooth and balanced on flat-faced cues using wood or composite joint materials. Stainless-steel configurations may produce a firmer, sharper sensation.
Advantages
- Widely available replacement shafts and accessories.
- Used by numerous cue manufacturers.
- Straightforward, familiar threaded construction.
- Practical for players wanting future shaft-upgrade flexibility.
Disadvantages
- More rotations during assembly than many coarse-thread designs.
- Joint-face dimensions and insert arrangements can vary.
- Not compatible with 5/16 × 14.
Why Choose It?
A practical option for players who value replacement-shaft availability or already own a cue using this common connection.
3. Uni-Loc Quick-Release — Fast and Convenient
Commonly found on: Predator and selected Lucasi and other compatible cues.
The original Uni-Loc Quick-Release system uses a specialized pin and insert that allow the shaft to be attached in approximately one and a half turns.
Typical Hit Characteristics
Often associated with a firm, immediate, crisp sensation, especially on cues using steel joint components. Some players appreciate the defined feedback of this connection.
Advantages
- Exceptionally fast assembly and disassembly.
- Convenient for players frequently changing shafts.
- Consistent connection when properly maintained.
- Established availability of compatible replacement shafts.
Disadvantages
- Requires the correct Quick-Release system.
- Not interchangeable with Uni-Loc Radial.
- The mating surfaces and mechanism should be kept clean.
- Specialized components can complicate repairs.
Why Choose It?
An attractive option for players who prefer convenience, regularly change shafts, or already own a compatible Uni-Loc cue.
4. Mezz Wavy — Precision-Oriented Construction
Commonly found on: Mezz cues equipped with the original Wavy joint.
The Mezz Wavy design uses a specialized thread profile intended to provide precise engagement between the joint pin and shaft.
It is different from conventional straight-thread designs.
Typical Hit Characteristics
Players frequently describe the traditional Wavy connection as solid, direct, and responsive. Its metal-to-wood threaded construction is associated with substantial feedback when properly fitted.
Advantages
- Distinctive precision-oriented joint design.
- Secure connection with properly matched components.
- Popular among Mezz owners.
- Designed around consistent shaft alignment.
Disadvantages
- Specialized replacement-shaft requirements.
- Not the same connection as Mezz United.
- Original Wavy and Wavy 2 are distinct systems, so compatibility must be confirmed.
- Fewer universal aftermarket options.
Why Choose It?
Ideal for customers with a compatible original Mezz Wavy cue who want to retain their existing butt while upgrading to carbon fiber.
5. 3/8 × 10 McDermott — The Traditional Large Pin
Commonly found on: McDermott and various custom cues.
A 3/8-inch diameter pin with ten threads per inch provides a traditional coarse-thread connection.
It is commonly associated with flat-faced joints and larger-diameter pins.
Typical Hit Characteristics
Frequently described as full, solid, and smooth, particularly in wood-to-wood or composite-faced constructions. Some players prefer its substantial, less metallic feedback.
Advantages
- Established large-pin design.
- Common in traditional cue construction.
- Good aftermarket support.
- Straightforward mechanical connection.
Disadvantages
- Takes longer to assemble than quick-release joints.
- Can be confused with modified 3/8 × 10 designs.
- Internal thread dimensions and joint faces must be verified.
Why Choose It?
A natural selection for compatible McDermott cues and other traditional large-pin designs.
6. 3/8 × 10 Modified — Refined Thread Geometry
Commonly found on: Selected custom cues.
The modified 3/8 × 10 maintains the nominal diameter and thread pitch of the standard version but uses altered thread geometry.
One established modification is the flat-bottom thread design, which can improve how the shaft locates on the pin when accurately machined.
Typical Hit Characteristics
Generally comparable to the traditional 3/8 × 10 when the surrounding cue construction is similar.
The modified thread profile does not inherently create a harder, softer, or more powerful hit.
Advantages
- Designed to improve mechanical fit and concentricity in certain constructions.
- Popular among some custom cue makers.
- Can provide precise shaft engagement.
- Suitable for cues built around that particular modified connection.
Disadvantages
- Similar appearance to standard 3/8 × 10.
- Compatibility is not universal.
- Incorrect internal dimensions can cause binding or improper seating.
- May require professional identification.
Why Choose It?
For players whose existing cues specifically use the modified connection. In a new custom build, the precise machining and fit may be appealing.
7. 3/8 × 14 — Cuetec-Style Connection
Commonly found on: Certain Cuetec and other production cues.
This connection uses a nominal 3/8-inch pin diameter with 14 threads per inch.
Its thread size differs from both the 3/8 × 10 and 5/16 × 14 designs.
Typical Hit Characteristics
Hit characteristics depend heavily on the original cue’s construction. Steel-jointed arrangements may feel crisp and firm, while composite-faced designs may provide more subdued feedback.
Advantages
- Allows compatible Cuetec owners to retain their existing butt.
- Conventional, reliable threaded connection.
- Available for Hillbilly Cues custom shafts.
Disadvantages
- Less universal aftermarket support than some common thread configurations.
- Model-specific differences may exist.
- Matching thread size alone does not guarantee joint-collar alignment.
Why Choose It?
For owners of compatible Cuetec-style cues seeking a carbon-fiber shaft upgrade without replacing the cue butt.
8. 3/8 × 11 Standard — Traditional Custom-Cue Connection
Commonly associated with: South West-style and selected custom cues.
The 3/8 × 11 uses a large pin with eleven threads per inch. Although visually similar to other large-pin connections, its thread spacing and possible variations in profile require careful identification.
Typical Hit Characteristics
Often associated with a substantial, direct, traditional feel in flat-faced custom cues. The exact sensation depends on the joint materials, butt, and shaft.
Advantages
- Established large-pin configuration.
- Used in respected custom cue designs.
- Secure traditional threaded connection.
- Maintains compatibility with cues specifically built for this joint.
Disadvantages
- Less common than mainstream production-cue joints.
- Easily confused with 3/8 × 10.
- Exact pin profile and mating dimensions require confirmation.
Why Choose It?
For owners of compatible 3/8 × 11 cues, particularly those who wish to preserve the original construction of a valued custom butt.
9. 3/8 × 11 Modified — Specialized Flat-Bottom Option
Commonly associated with: Selected custom cues and modified large-pin designs.
This variation retains the nominal 3/8-inch diameter and eleven-thread pitch but incorporates a modified thread form.
Some versions use flat-bottom thread geometry and altered minor diameters intended to improve mechanical engagement and shaft location.
Typical Hit Characteristics
Similar to the standard 3/8 × 11 when used with equivalent joint materials and shaft construction.
The potential advantage of the modified thread is primarily mechanical fit—not a guaranteed difference in hit hardness or feedback.
Advantages
- Specialized geometry for accurately fitted custom connections.
- Can promote consistent engagement and alignment.
- Suitable for cues specifically manufactured around modified 3/8 × 11 dimensions.
- Provides another replacement-shaft option for custom-cue owners.
Disadvantages
- Difficult to identify visually.
- Modified specifications can vary between manufacturers.
- Not automatically interchangeable with standard 3/8 × 11.
- Incorrect mating dimensions may damage threads or prevent proper seating.
Why Choose It?
For customers with a verified modified 3/8 × 11 joint. Correct identification is especially important before ordering a replacement shaft.
10. Uni-Loc Radial — Substantial, Direct Engagement
Commonly found on: Selected Predator, Jacoby, and other custom cues.
The Radial uses a large, distinctive rounded-thread profile. Unlike Uni-Loc Quick-Release, it is a conventional screw-together connection that engages matching threads in the shaft.
Typical Hit Characteristics
Often described as solid, full, and direct, especially with wood-to-wood or suitable composite joint construction.
Some players appreciate the relatively natural feedback compared with certain steel-jointed arrangements.
Advantages
- Large threaded connection.
- Popular with many custom cue makers.
- Designed for secure mechanical engagement.
- Can provide direct, substantial feedback.
- Established aftermarket shaft availability.
Disadvantages
- Slower assembly than Quick-Release.
- Requires the correct Radial joint geometry.
- Not interchangeable with other Uni-Loc systems.
- Joint-face and shaft-insert construction remain important.
Why Choose It?
For players using compatible Radial-equipped cues, or those who prefer this style of large-pin threaded construction in a new custom cue.
HIT CHARACTERISTICS AT A GLANCE
The following descriptions reflect common player impressions of typical joint constructions, not controlled performance measurements or guaranteed characteristics of Hillbilly Cues shafts.
| Joint Type | Commonly Described Feel |
|---|---|
| 5/16 × 14 | Firm, crisp with piloted steel |
| 5/16 × 18 | Smooth or firm, depending on joint materials |
| Uni-Loc Quick-Release | Crisp, firm, immediate |
| Mezz Wavy | Solid, direct, responsive |
| 3/8 × 10 McDermott | Full, smooth, traditional |
| 3/8 × 10 Modified | Similar to standard 3/8 × 10 |
| 3/8 × 14 Cuetec | Construction-dependent; often firm |
| 3/8 × 11 Standard | Solid, substantial, traditional |
| 3/8 × 11 Modified | Similar to standard 3/8 × 11 |
| Uni-Loc Radial | Full, direct, solid |
WHAT REALLY DETERMINES THE FEEL OF YOUR CUE?
A joint is only one piece of the puzzle.
Joint-Face Material
Stainless-steel, wood, phenolic, and other composite materials have different physical properties that may change how vibrations reach your grip hand.
A traditional steel-jointed cue may feel noticeably different from a flat-faced wood-to-wood cue, even when the pin sizes are similar.
Shaft Material and Construction
Maple and carbon-fiber shafts can produce different sensations due to their construction, stiffness, weight distribution, and vibration characteristics.
Even two carbon-fiber shafts may feel different despite sharing the same joint.
Tip Hardness
A soft leather tip may provide a more cushioned impact sensation than a hard playing tip or specialized break tip.
Tip material, construction, and contact characteristics can significantly affect the feel and sound of a shot.
Joint Fit and Machining
A correctly fitted joint should assemble smoothly, seat securely, and remain free from unwanted movement.
A worn, damaged, or poorly matched connection may produce unusual vibration, clicking, or rattling.
Precision and proper fit matter more than simply choosing the biggest pin or the most expensive joint design.
HOW TO CHOOSE THE RIGHT JOINT
Already own a cue you love?
Keep the original butt and select the properly matched shaft connection. There’s usually no reason to change your joint simply because another design has a reputation for a particular hit.
Want the convenience of quickly changing shafts?
A properly fitted Uni-Loc Quick-Release connection may be appealing.
Prefer traditional threaded construction?
The 5/16-inch and 3/8-inch threaded designs provide numerous options, depending on your cue and your preference.
Own a specialized custom cue?
Matching the exact thread profile is essential, particularly for modified 3/8 × 10 and 3/8 × 11 joints.
Looking for a softer, harder, or more responsive hit?
Consider the complete cue—not just the joint. Tip characteristics, shaft construction, joint materials, and overall balance are all important.
HILLBILLY CUES CUSTOM CARBON-FIBER SHAFTS
Whether you’re looking for a playing shaft or a dedicated jump/break setup, Hillbilly Cues offers custom carbon-fiber options for a wide range of popular cue connections.
ABSOLUTE ZERO — Carbon-Fiber Playing Shafts
Available in 11.8 mm, 12.4 mm, 12.8 mm, and 13.0 mm tip diameters.
BIG BERTHA — Carbon-Fiber Jump/Break Shaft
Featuring a 13.3 mm tip diameter for players looking for a dedicated jump/break shaft.
Both shaft families are offered with the ten joint configurations described above.
Joint type determines compatibility, while the shaft’s construction and tip selection play a major role in its intended playing characteristics.
DON’T GUESS YOUR JOINT — IDENTIFY IT!
Not sure what joint your cue uses?
Visit our Pool Cue Joint Pin Identifier page to compare common joint pin designs.
Remember, some joints look nearly identical despite having different thread geometry. If you’re uncertain, contact Hillbilly Cues before ordering.
We can help determine the correct connection for your cue and discuss the shaft options available.
HILLBILLY CUES
FOR PLAYERS BY A PLAYER
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