Custom CNC Processed Anodized Mechanical Parts
Place of Origin：Fujian, China
Type：Broaching, DRILLING, Etching / Chemical Machining, Laser Machining, Milling, Other Machining Services, Turning, Wire EDM, Rapid Prototyping
Micro Machining or Not：Micro Machining
Model Number：CMP-39
Brand Name：Goldcattle
Product name：Custom Anodized CNC Bolt Parts
Material：Brass/Stainless Steel/Aluminum Alloy
Process：Cnc Machining + Surface Treatment
Surface treatment：Painting\Powder Coating\Plating\Polishing
Color：Customized Color
Size：Size Customized
Logo：Customer Logo
MOQ：1 Piece
QC Control：100% QC Steps Inspection
OEM/ODM：OEM ODM CNC Milling Turning Machining Service
Description
Precision Fasteners for Demanding Applications
Goldcattle specializes in manufacturing high-precision custom bolts using advanced CNC machining technologies. Our anodized aluminum and brass fasteners are engineered to meet the most stringent requirements of aerospace, automotive, and marine industries.
With over 20 years of experience, we deliver consistent quality and reliability for every project, from single prototypes to large volume production runs.
Why Choose Goldcattle Fasteners
- ✓
Minimum order quantity: 1 piece – Ideal for rapid prototyping and small production runs - ✓
Full material traceability – Mill certificates provided with every shipment - ✓
20+ years CNC expertise – Serving aerospace and automotive Tier-1 suppliers - ✓
Quick turnaround – Quotes within 4 hours, lead times 7-15 days
Materials & Manufacturing Processes
Aluminum Alloys (6061-T6 / 7075-T6)
Aluminum alloys offer an excellent strength-to-weight ratio with a density of only 2.7 g/cm³, making them ideal for weight-critical applications in aerospace and automotive industries.
6061-T6 provides good corrosion resistance and weldability, while 7075-T6 offers higher strength comparable to some steels.
Key Properties:
– Tensile strength: 6061-T6 (310 MPa), 7075-T6 (505 MPa)
– Yield strength: 6061-T6 (276 MPa), 7075-T6 (434 MPa)
– Elongation: 6061-T6 (12%), 7075-T6 (11%)
Supports vibrant Type II anodizing in clear, black, red, blue, gold, and other custom colors for enhanced corrosion resistance and aesthetic appeal.
Free-Machining Brass (C36000)
C36000 brass is known for its superior machinability (rated 100% on the machinability index), making it ideal for complex CNC machining operations.
It offers excellent corrosion resistance in marine environments and has a natural golden luster that can be enhanced with passivation.
Key Properties:
– Tensile strength: 345 MPa
– Yield strength: 150 MPa
– Elongation: 35%
– Electrical conductivity: 28% IACS
High electrical conductivity makes it suitable for electronic enclosures and electrical components where grounding is required.
CNC Machining Workflow
Our manufacturing process combines advanced 5-axis CNC machining with precision anodizing to deliver high-quality fasteners:
- 5-axis CNC turning & milling using Haas and DMG Mori equipment
- Thread rolling or single-point threading for precise thread formation
- Deburring & ultrasonic cleaning to remove all machining residues
- MIL-A-8625 Type II/III sulfuric acid anodizing (hardcoat up to 50 µm)
- Dyeing, sealing & final inspection with CMM measurement
Production Capacity: Up to 10,000 pieces per day for standard bolt sizes
Technical Specifications
Quality Standards & Testing Data
Anodizing Performance Testing
- Salt spray resistance: 1000+ hours (ASTM B117)
- Adhesion test: Passes ASTM D3359 tape test
- Corrosion resistance: ISO 9227 standard
- Hardness: 400+ HV for Type III hardcoat
- Thickness measurement: Magnetic method per ASTM B244
Certifications & Standards
- ISO 9001:2015 Quality Management System
- IATF 16949 Automotive Quality Standard
- AS9100 Aerospace Quality Standard (on request)
- MIL-A-8625 Anodizing Specification
- ISO 2768-mK Tolerance Standard
- ASME B18.3 / B18.6.3 Fastener Standards
Every batch includes material certification, dimensional inspection report, and anodizing thickness test results.
Quality Inspection Process
We use advanced inspection equipment to ensure every bolt meets your specifications:
- Coordinate Measuring Machine (CMM) for dimensional accuracy
- Surface roughness tester (Ra measurement)
- Anodizing thickness gauge
- Salt spray testing chamber
- Hardness tester (Vickers scale)
From Raw Material to Finished Product
CNC Machining
5-axis CNC turning and milling with real-time tool compensation
Anodizing Process
MIL-A-8625 Type II/III anodizing for corrosion resistance
Quality Inspection
100% dimensional inspection and quality verification
Finished Products
Packaged and ready for delivery to customers worldwide
Industry Applications
Aerospace & Defense
Lightweight structural fasteners that reduce overall weight by up to 60% compared to steel alternatives, while maintaining required strength and durability for critical aerospace applications.
Automotive & EV
Engine, chassis, and battery enclosure applications where weight reduction improves fuel efficiency and extends electric vehicle range. Brass components provide excellent electrical conductivity.
Marine & Offshore
Saltwater corrosion resistance proven in 1000-hour salt spray testing. Anodized aluminum and brass fasteners withstand harsh marine environments while maintaining their appearance and performance.
Performance Testing Results
Tensile Strength Testing
310 MPa
505 MPa
345 MPa
* Test results based on standard ASTM E8 testing methods (data for reference only)
Corrosion Resistance Testing
1000+ hours
2000+ hours
1500+ hours
* Salt spray testing per ASTM B117 standard (data for reference only)
Fatigue Life Testing Results
| Material | Load (MPa) | Cycles to Failure | Result |
|---|---|---|---|
| 6061-T6 Aluminum | 150 | 2,000,000+ | No failure |
| 7075-T6 Aluminum | 250 | 2,000,000+ | No failure |
| C36000 Brass | 170 | 2,000,000+ | No failure |
* Testing per ASTM E466 standard at 20 Hz frequency (data for reference only)
Ready for Your Custom Fastener Project?
Upload your drawing (STEP, IGES, PDF) and receive a firm quote within 4 hours.
Lead time 7–15 days for standard orders. Rush delivery available upon request.
