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Durable solid steel balls in carbon steel, bearing steel (GCr15), and stainless steel (304/316/440C). Ideal for industrial machinery, medical devices, and precision instruments. Request a quote.
minimum order
1 piece
Quantity
$0.18 - $1.98
/ piece
Durable solid steel balls in carbon steel, bearing steel (GCr15), and stainless steel (304/316/440C). Ideal for industrial machinery, medical devices, and precision instruments. Request a quote.
| Key Attributes | |
| Machining Capabilities | CNC Machining Processes:Broaching, Drilling, Etching/Chemical Machining, Laser Machining, Milling, Turning, Wire EDM, Rapid Prototyping |
| Materials Supported | Aluminum, Brass, Bronze, Copper, Hardened Metals, Stainless Steel, Steel Alloys, Plastic |
| Micro-Machining or Not | Micro Machining |
| Key Processes | CNC Milling, Turning, Drilling |
| Tolerance Standards | Industry-standard precision |
| Surface Treatments | Anodizing, Plasting, Polishing, etc. |
| Applications | Control Systems, Automotive Components |
| Place of Origin | Guangdong, China |
| Model Number | CUSTOM |
| Service Type | Customized OEM/ODM Manufacturing |
| Drawing Formats | PDF, CAD, IGES, STEP |
| Delivery Time | 7-30 Days |
| MOQ | 10 pcs |
· Product Overview
These precision-engineered stainless steel balls are high-performance custom machined components, featuring a perfectly spherical body with a concentric precision-drilled and tapped hole (or through-hole). Crafted from premium stainless steel, they combine the inherent strength, corrosion resistance, and wear durability of stainless steel with the functional versatility of integrated threading. Designed for both structural connection and precision positioning, these balls are ideal for mechanical joints, adjustable assemblies, DIY crafting, and industrial hardware applications, delivering consistent fit and long-term reliability across diverse environments.
· Core Specifications
| Specification | Details |
|---|---|
| Base Material | 304 Stainless Steel (standard, general-purpose); 316 Stainless Steel (marine-grade, corrosion-resistant); 440C Stainless Steel (high-hardness, wear-resistant) |
| Surface Finish | Mirror-polished / bright electroplated finish (Ra ≤ 0.8μm); optional passivation for enhanced rust resistance |
| Tolerance Standards | Spherical tolerance: ±0.005mm; Thread tolerance: 6H/6g (ISO 965); Hole concentricity: ≤ 0.01mm |
| Core Machining Processes | Precision sphere forming, concentric drilling, CNC tapping, surface polishing, and electroplating |
| Key Features | Concentric threaded hole for secure fastening, mirror-polished corrosion-resistant surface, high-strength solid construction, and universal compatibility with metric/imperial fasteners |
· Application Scenarios
These threaded stainless steel balls serve critical roles in industrial, commercial, and creative applications:
- Mechanical Assemblies: Adjustable joints for monitor arms, phone holders, camera mounts, and industrial positioning fixtures
- Hardware & Fasteners: Connection points for wire rope assemblies, rigging hardware, and tension adjustment systems
- DIY & Jewelry Making: High-end components for custom bracelets, necklaces, bag charms, and industrial-style craft projects
- Automotive & Aerospace: Lightweight structural joints for interior components, control linkages, and UAV assembly
- Marine & Outdoor Equipment: Corrosion-resistant connectors for boat rigging, outdoor furniture, and coastal infrastructure (316 SS variant)
· Production Process Introduction
- Material Selection & Preparation: Premium stainless steel wire or bar stock is sourced and cut to size, with strict material composition testing via spectrometry.
- Sphere Forming: Precision cold heading or grinding processes create the initial spherical blank, ensuring perfect roundness and dimensional consistency.
- Concentric Machining: CNC drilling and tapping machines execute high-precision operations to create the central threaded hole, with strict concentricity control to avoid offset.
- Surface Finishing: Balls undergo multi-stage polishing to achieve a mirror-bright surface, followed by optional electroplating (nickel/chrome) for enhanced aesthetics and corrosion resistance.
- Quality Inspection: 100% inspection includes spherical diameter measurement, thread go/no-go testing, concentricity verification, and visual surface checks.
- Packaging: Cleaned components are sorted and packaged to prevent scratching and contamination during transit.
· Packaging and Shipping Methods
- Standard Packaging: Each ball is individually wrapped in anti-scratch PE film, sorted by size/thread specification in EPE foam trays, and packed in reinforced corrugated cartons. For small-batch jewelry applications, zip-top bags with size labeling are available.
- Shipping Options:
- Express Delivery (3–7 Business Days): DHL/FedEx/UPS for prototypes, small orders, or urgent requirements (full tracking provided).
- Standard Sea Freight (25–40 Business Days): FCL/LCL options for large-volume industrial orders (customs documentation support included).
- Custom Packaging: Branded labeling, barcoding, serialized marking, and custom foam inserts are available to align with inventory and branding needs.
· Process
· Frequently Asked Questions (FAQ)
What is your Minimum Order Quantity (MOQ)?
Our MOQ is highly flexible: 1 piece for custom prototypes or small DIY projects, with volume pricing starting at 50 pieces for standard sizes and 100 pieces for custom thread specifications.
What are your typical lead times?
- Prototyping/Custom Sizes: 5–10 business days from design confirmation.
- Standard Stock Sizes: 2–5 business days for immediate shipment.
- Mass Production: 10–20 business days, depending on order volume and surface finish requirements.
Can you accommodate custom modifications?
Yes, we offer comprehensive customization:
- Custom Sizes: Spherical diameters from 3mm to 50mm (or larger on request).
- Thread Customization: Any metric (M2–M12) or imperial (1/8"–1/2") thread size, with through-hole or blind-hole options.
- Material Upgrades: 316L stainless steel, titanium, or brass for specialized corrosion resistance or conductivity.
- Surface Treatments: Matte finish, black oxide, gold plating, or laser engraving (logos/part numbers) for branding and traceability.
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