Custom Ball Head Screw Bolts | High Strength Alloy Steel / Stainless
Place of Origin : XiaMen, China
Model : CNC-23
Color : Yellow,Sliver
MOQ : 1pcs
Packing : Plastic Bag+carton+pallet
Delivery time : 7-25 Working Days
Service : OEM\ODM
Sample : Available
Quality : 100% Qualified
Logo : Accept Customized Logo
Material : Stainless Steel
Description
Custom Load-Bearing Ball Head Screw Bolts – Alloy Steel / Stainless Steel
Solve loose or corroded fasteners in heavy-duty applications with our custom ball head / eye bolts.
• High tensile strength ≥1000 MPa (alloy steel) or marine-grade 316 SS
• Adjustable articulation for misalignment compensation
• Precision CNC ±0.01mm – no galling, easy assembly
• Load capacity customizable up to 40 kN (4 tons)
• Ideal for automation arms, machinery linkages, medical devices, aerospace fixtures



Product Overview
Our custom ball head bolts are precision-engineered fasteners designed to provide superior articulation and load-bearing capabilities in demanding applications. Unlike standard fasteners, these specialized components allow for controlled movement while maintaining structural integrity, making them ideal for dynamic systems where misalignment compensation is critical.
Each bolt is manufactured using state-of-the-art CNC machining centers to ensure exacting tolerances and consistent performance. We offer complete customization to meet your specific design requirements, from material selection to geometric configuration.

Core Technical Advantages
Precision Machining
CNC Swiss-type turning with ±0.01mm tolerance on critical dimensions
Articulation Design
Engineered for smooth movement and misalignment compensation
Material Expertise
Specialized alloys with optimized mechanical properties
Corrosion Resistance
Advanced surface treatments for harsh environments
Technical Specifications
| Parameter | Details | Value | Test Standard |
|---|---|---|---|
| Thread Size | Metric/UNC/UNF | M6-M30 / #10-1″ | ISO 898-1 |
| Ball Diameter | Standard Sizes | 10-50mm | Custom |
| Length Range | Total Length | 20-300mm | DIN 933 |
| Swing Angle | Articulation Range | ±15-30° | Custom |
| Tolerance | Critical Dimensions | ±0.01mm | ISO 2768 |
| Load Capacity | Working Load Limit | Up to 40 kN (4 tons) | ASME B30.26 |
| Fatigue Life | Cycle Count | ≥10^6 cycles | ASTM E466 |
Material Comparison
| Property | Alloy Steel (40Cr/42CrMo) | 304 Stainless Steel | 316 Stainless Steel |
|---|---|---|---|
| Tensile Strength | ≥1000-1400 MPa | ≥520 MPa | ≥550 MPa |
| Hardness (HRC) | 28-36 | 18-22 | 18-24 |
| Corrosion Resistance | Good (with coating) | Excellent | Superior (marine grade) |
| Salt Spray Test | 24-48 hours | 168 hours | 500+ hours |
| Temperature Resistance | Up to 500°C | Up to 800°C | Up to 870°C |
| Price Relative | Lowest | Medium | Highest |
| Best For | High load, high strength applications | General industrial use | Marine, chemical, food industries |
Why Choose Our Custom Ball Head Bolts?
vs Standard Fasteners
- Custom Articulation: Solves misalignment issues in dynamic applications
- Longer Life: Superior fatigue resistance in vibration/heavy load environments
- Precision Fit: CNC machining ensures perfect fit for your specific design
- Material Selection: Choose the optimal material for your application
- Performance Optimization: Tailored to your exact load and movement requirements
Our Competitive Advantages
- DFM Expertise: Design for manufacturability optimization
- Small MOQ: Sample orders from 1 piece available
- Fast Turnaround: 24h quote, 7-15 days sample delivery
- Full Traceability: Material certificates and inspection reports
- Engineering Support: Technical assistance throughout the design process
Real-World Applications



Used in European automation lines – reduced downtime by 40% compared to standard fasteners
Detailed Application Areas
Industrial Robotics
- • Robotic arm joints and linkages
- • End-effector attachments
- • Gripper mechanisms
- • Collaborative robot safety systems
- • Precision positioning systems
Enables smooth movement and precise positioning in high-cycle applications
Automation Equipment
- • Conveyor systems and linkages
- • Assembly line mechanisms
- • Indexing tables and rotary stages
- • Pick-and-place machines
- • Packaging machinery
Compensates for manufacturing tolerances and thermal expansion
Medical Devices
- • Imaging equipment fixtures
- • Surgical instrument articulation
- • Patient positioning systems
- • Diagnostic equipment mounts
- • Rehabilitation devices
Provides precise, smooth movement in critical medical applications
Aerospace & Defense
- • Ground support equipment
- • Test fixture articulation
- • Avionics mounting systems
- • Weapon system components
- • Satellite deployment mechanisms
Meets stringent performance and reliability requirements
Customization Process
Upload Drawing
Submit your CAD file or technical drawing
DFM Analysis
24h design for manufacturability review
Quote & Approval
Receive detailed quotation and lead time
Production
Precision manufacturing and quality control
Delivery
Fast shipping with full documentation
Quality Assurance
IATF 16949 / ISO 9001 Certified
Our manufacturing facilities are certified to international quality standards, ensuring consistent performance and reliability.
Material Certifications
Full traceability with EN10204 3.1 material certificates and RoHS/REACH compliance documentation.
Global Export Experience
Export to US/EU/JP since 2015 with proven track record of meeting international standards and customer requirements.
Customer Feedback
“The custom ball head bolts we received have been performing flawlessly in our robotic end-effectors. The precision machining and material quality exceed our expectations. We’ve seen a 40% reduction in downtime compared to our previous suppliers.”
– European Automation Systems Integrator
Technical Documentation & Support
Comprehensive Technical Support
- 📐
Design Assistance: Our engineering team can help optimize your ball head bolt design for manufacturability and performance
- 📊
Performance Data: Complete material test reports, load capacity charts, and fatigue analysis available upon request
- 📄
Documentation Package: Includes CAD files, material certificates, inspection reports, and installation guidelines
- 🔧
Installation Support: Technical guidance for proper installation and maintenance procedures
Available Documentation
📁
Material Certificates
EN10204 3.1, Mill Test Reports
📁
Test Reports
Tensile, Hardness, Fatigue Testing
📁
CAD Files
STEP, IGES, SolidWorks, AutoCAD
📁
Installation Guide
Torque specifications, maintenance procedures
📁
Compliance Documents
RoHS, REACH, FDA, NSF certifications











