Precision 304 Stainless Steel CNC Turning Shaft with M4 External Thread Machining

High-Quality Stainless Steel Lathe Components with Ra 1.6 Surface Finish for US Industrial Equipment Applications

YS Precision specializes in manufacturing precision CNC turning parts for industrial equipment and mechanical applications.

For this project, we produced 5,000 pieces of 304 stainless steel precision shafts for a US customer.

The components required high-quality CNC turning, including precision shaft machining and M4 external thread machining. To ensure reliable assembly performance, the threaded sections required accurate thread control, while the shaft surfaces required a smooth Ra 1.6 surface finish.

YS Precision provided a complete manufacturing solution, including CNC machining, quality inspection, protective packaging, and international shipment coordination.

Project Overview

Precision CNC Turning of 304 Stainless Steel Shafts

304 stainless steel is widely used for precision mechanical components because of its:

• Excellent corrosion resistance
• Good mechanical strength
• Long-term durability
• Stable performance in industrial environments

However, stainless steel machining requires experienced process control due to its higher cutting resistance and tendency to generate tool wear.

For this project, YS Precision optimized:

• Cutting parameters
• Tool selection
• Machining sequence
• Inspection methods

to maintain stable production quality throughout the 5,000-piece order.

Accurate M4 External Thread Machining

The shaft components required M4 external threads for mechanical assembly.

Thread accuracy is critical because incorrect thread dimensions can cause:

• Assembly difficulties
• Loose connections
• Reduced product reliability

YS Precision carefully controlled the M4 thread machining process, including:

• Thread diameter control
• Thread profile accuracy
• Surface quality
• Batch consistency

During production, threaded features were inspected to ensure smooth assembly with the customer's mating components.

Smooth Surface Finish Control – Ra 1.6

The customer required a surface roughness of Ra 1.6

A controlled surface finish helps improve:

• Assembly performance
• Wear resistance
• Contact quality
• Overall product reliability

YS Precision achieves consistent surface quality through:

• Optimized CNC turning parameters
• Proper cutting tools
• Process monitoring
• Final appearance inspection

Stable Batch Production of Stainless Steel CNC Turning Parts

This project required:

5,000 precision stainless steel shafts

For production quantities of thousands of pieces, maintaining consistency is essential.

YS Precision follows a controlled manufacturing process:

Engineering Review

Before production, our engineers review:

• Drawings
• Thread requirements
• Critical dimensions
• Surface finish requirements

CNC Turning Production

Using precision CNC lathes, we manufacture shafts with stable dimensional control.

Quality Inspection

Finished parts are inspected for:

• Dimensions
• M4 thread quality
• Surface finish
• Appearance

Complete Manufacturing Service from Machining to Delivery

YS Precision provides customers with a complete production solution.

Our service includes:

CNC Machining

• Precision CNC turning
• Shaft machining
• Thread machining

Quality Inspection

• Material verification
• Process inspection
• Final inspection

Packaging

We provide protective packaging to prevent:

• Scratches
• Surface damage
• Transportation impact

Global Shipping Support

We assist customers with:

• Shipping coordination
• Export handling
• Delivery management

CNC Turning Materials Capability

YS Precision provides precision turning services for:

Metals

• Stainless Steel 304 / 316
• Aluminum
• Brass
• Titanium
• Carbon Steel
• Alloy Steel

Engineering Plastics

• POM
• Nylon
• PEEK
• PTFE
• ABS

Why Choose YS Precision for Precision CNC Turning Parts?

Experienced in Threaded Shaft Components

We manufacture various precision shafts, pins, bushings, and threaded components.

Stable Production Capability

From prototypes to thousands of production parts, we provide consistent quality.

Complete Supply Chain Management

Customers receive a complete solution from machining to inspection, packaging, and shipment.

International Export Experience

We support customers in the USA, Europe, and other global markets.

Your Reliable Manufacturer for 304 Stainless Steel CNC Turning Parts

YS Precision specializes in manufacturing precision stainless steel CNC turning parts for global industrial customers.

From 304 stainless steel shaft machining, M4 external thread processing, and Ra 1.6 surface finishing to inspection and delivery, we provide reliable manufacturing solutions.

Whether you need prototype CNC turning parts or production quantities of thousands of components, YS Precision is your trusted machining partner.