Description
ER Collet Nuts – Mini, Hex, UM and Arbor T-Thread Types for Precision Clamping
Discover our range of ER Collet Nuts designed for precision CNC and milling applications. Available in four types—Mini (A), Hex (M), UM, and Arbor T-Thread—the ER Collet Nuts provide secure clamping and high-performance for ER11, ER16, ER20, ER25, ER32, ER40, and ER50 collet sizes. Perfect for high-speed operations with optimal balance and durability.
Available ER Collet Nuts



ER Collet Nuts – Mini, Hex, UM, and Arbor T-Thread Type Specifications
ER Nut Type | Model | D (mm) | L (mm) | Thread | Weight (kg) |
---|---|---|---|---|---|
ER Nut-Hex / A | ER11 | 19 | 11.3 | M14×0.75P | 0.02 |
ER Nut-Hex / A | ER16 | 28 | 17.5 | M22×1.5P | 0.05 |
ER Nut-Hex/ A | ER20 | 34 | 19 | M25×1.5P | 0.10 |
ER Nut-Mini / M | ER11 | 16 | 12 | M13×1.75P | 0.01 |
ER Nut-Mini / M | ER16 | 22 | 18 | M19×1.0P | 0.05 |
ER Nut-Mini / M | ER20 | 28 | 19 | M24×1.0P | 0.05 |
ER Nut-UM | ER25 | 42 | 20 | M32×1.5P | 0.14 |
ER Nut-UM | ER32 | 50 | 22.5 | M40×1.5P | 0.20 |
ER Nut-UM | ER40 | 63 | 25.5 | M50×1.5P | 0.30 |
ER Nut-UM | ER50 | 78 | 35.5 | M64×2.0P | 0.50 |
Arbor T-Thread | ER16 | ||||
Arbor T-Thread | ER32 |
Key Features of ER Collet Nuts
- Precision Machining: ER collet nuts ensure precise tool holding, minimising runout and improving machining accuracy.
- Durable Construction: Made from high-strength materials, these collet nuts are designed to withstand high-speed machining environments.
- Wide Range of Sizes: Available in sizes from ER11 to ER50, ensuring compatibility with a variety of CNC tool holders and applications.
- Versatile Applications: Suitable for use in CNC machining centers, milling machines, and turning machines, allowing for flexibility in various machining tasks.
Applications
- CNC machining centers
- Precision milling and turning
- High-speed tool holding for aerospace, automotive, and general manufacturing industries
Order the Best ER Collet Nuts for Precision Tooling Solutions
For reliable and precise tool holding in CNC applications, the ER Collet Nuts in Mini, Hex, UM and Arbor T-Thread Types are the perfect solution. Whether you’re working in high-speed machining or need secure clamping for heavy-load operations, our ER collet nuts guarantee optimal performance and enhanced tool life.
Out of Stock or Need a Different Size? Enquire Today!
If the size you need is out of stock or you require a custom order, CNC Support is here to assist. Contact us directly, and we’ll arrange special orders or expedite the stock delivery based on your specific tooling requirements.