Custom CNC Machined 6061 Aluminum Threaded Block | Precision Milling & Black Anodizing

Our custom CNC machined 6061 aluminum threaded blocks are engineered for precision assembly, pneumatic systems, automation equipment, fixtures, robotics, and industrial machinery. Manufactured using advanced CNC milling technology and finished with sand blasting and black anodizing, these components combine lightweight performance, excellent corrosion resistance, and outstanding dimensional accuracy.

Whether you require prototype quantities or high-volume production, every component is manufactured according to your drawings, CAD models, and functional requirements.

• Lightweight yet high strength
• Excellent machinability
• Multiple precision threaded holes
• Superior corrosion resistance
• Uniform matte black anodized finish
• Tight dimensional tolerance
• OEM & ODM supported
• Global shipping

A CNC machined aluminum threaded block is a precision-engineered component designed to connect, mount, or distribute mechanical or pneumatic systems. Unlike cast components, CNC-machined blocks are produced directly from solid aluminum stock, enabling high dimensional accuracy, repeatability, and customized hole configurations.

The example shown features multiple threaded ports on different faces, making it suitable for fluid distribution, pneumatic manifolds, mounting fixtures, or structural assemblies.

6061 aluminum is one of the most widely used alloys in CNC machining because it offers an excellent balance of machinability, strength, corrosion resistance, and anodizing quality. It is commonly selected for automation equipment, electronic housings, robotics, aerospace support parts, and general industrial machinery.

• Excellent machinability
• High strength-to-weight ratio
• Good corrosion resistance
• Uniform anodized appearance
• Easy to machine complex geometries
• Cost-effective compared with high-strength aerospace alloys

6061 Aluminum Bar

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Material Inspection

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CNC Precision Milling

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Drilling

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Thread Tapping

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Chamfering

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Deburring

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Sand Blasting

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Black Type II Anodizing

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100% Inspection

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Packaging

• Uniform appearance
• Removes machining marks
• Improves anodizing consistency

• Excellent corrosion resistance
• Scratch resistance
• Premium appearance
• Improved wear resistance
• Long service life

对于外观要求高的零件,喷砂后再阳极氧化通常能获得更一致的颜色,但应在图纸中明确阳极氧化类型,颜色和膜厚要求.

• 3-axis CNC Milling
• 4-axis CNC Milling
• 5-axis CNC Milling
• High-speed drilling
• Precision tapping
• Thread milling
• Deep hole machining
• Custom engraving
• Small batch production
• Mass production

• Industrial Automation
• Pneumatic Systems
• Hydraulic Equipment
• Robotic Systems
• Fixture & Jigs
• Mechanical Assemblies
• Packaging Machinery
• Semiconductor Equipment
• Medical Equipment
• Electronic Devices

Adequate thread engagement ensures reliable fastening and long-term durability.

Maintain sufficient spacing between threaded holes to preserve structural strength.

Avoid unnecessarily sharp internal corners to improve machinability and reduce tool wear.

Ensure enough material remains around threaded features to avoid deformation during tightening.

Type II anodizing adds a thin oxide layer that affects finished dimensions; this should be considered for tight-tolerance fits.

• Coordinate Measuring Machine (CMM)
• Thread Gauge
• Digital Caliper
• Height Gauge
• Surface Roughness Tester
• Visual Cosmetic Inspection

• PE Bag
• Foam Protection
• Bubble Wrap
• Carton Box
• Wooden Crate

Because it provides an excellent balance of machinability, strength, corrosion resistance, and anodizing performance, making it suitable for a wide range of industrial applications.

Yes. Metric, UNC, UNF, BSP, BSPT, and NPT threads can typically be produced according to customer drawings.

Black anodizing improves corrosion resistance and wear performance while providing a consistent matte appearance. Proper specification of anodizing type and thickness is important for functional parts.

Yes. STEP, STP, IGS, X_T, DWG, DXF, and PDF files are commonly accepted.

Yes. Prototype, low-volume, and mass production are generally supported.

• Complete Guide to 6061 Aluminum CNC Machining
• Black Anodizing vs Hard Anodizing
• CNC Thread Milling Design Guide
• Surface Finish Selection Guide
• Precision CNC Milling Services

Upload your CAD drawing today to receive:

• Engineering Review
• Design for Manufacturability (DFM) Feedback
• Competitive Quotation
• Material Recommendations
• Surface Finish Suggestions
• Fast Prototype & Production Support