ER NUT
100%

ER NUT

ER Nuts are precision-engineered components used to securely clamp ER collets in tool holders, arbors, and adapters. Manufactured with hardened and precision-ground threads, they provide reliable clamping force, high accuracy, and long service life, making them ideal for CNC milling, drilling, tapping, and reaming operations.

High-quality ER Nuts are precision components engineered to securely clamp ER collets in tool holders, arbors, and adapters. Manufactured with hardened & precision ground threads, our ER nuts ensure reliable clamping force, superior accuracy, and long service life — ideal for CNC milling, drilling, tapping, and reaming operations.


🔎 What is an ER Nut?

An ER Nut is a threaded collet nut that holds an ER collet in place. It ensures the collet compresses uniformly and grips the cutting tool securely. Available in multiple sizes and types, ER nuts are essential accessories for ER series tool holding systems.


🏷️ Available ER Nut Sizes

ER Nut Size

Thread

ER11 Nut

M14 × 0.75

ER16 Nut

M22 × 1.5

ER20 Nut

M25 × 1.5

ER25 Nut

M32 × 1.5

ER32 Nut

M40 × 1.5

ER40 Nut

M50 × 1.5

Note: Clamping ranges are standard; consult drawing for exact ranges.


⚙️ Key Features

  • Hardened & Precision Ground Threads for consistent clamping
  • Low Runout Performance enhances machining accuracy
  • Standard & Bearing Types Available
  • Wide Size Range for ER11 to ER40 series
  • Durable Finish for extended service life
  • Compatible with All ER Collets & Holders

📌 ER Nut Types

Standard ER Nut

General purpose nuts for everyday machining.

Bearing ER Nut

Includes low-friction thrust bearings — ideal for high-speed & precision applications.

Slim / Mini ER Nut

Reduced OD for tight tool holding setups.


💡 Applications

  • CNC milling, drilling & reaming
  • Tool rooms & maintenance
  • Precision machining centers
  • CAM production & high-volume jobs
  • Retrofit tool holders & adapters

🔧 Technical Specifications

Feature

Details

Material

Alloy Steel / Hardened Steel

Hardness

HRC 48–56 (typical)

Surface

Precision ground finish

Standard

DIN 6499 / ISO compatible

Thread Accuracy

Fine tolerance for repeatability


💼 Why Choose Us?

Experienced Indian Manufacturer & Supplier
In-house quality inspection & testing
Wide range of ER nuts in stock
Custom configurations on request
Pan-India delivery & export services

Product Inquiry

Have questions about a specific product? Our team will help you find the right option for your needs — ensuring compatibility, quality, and value.

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