UNPARALLELED LTD is one of the leading manufacturers and suppliers of ultra-stable component mounting in China. With abundant experience, we warmly welcome you to buy advanced ultra-stable component mounting made in China here from our factory. We also accept custom orders.
In Ultra-Stable Component Mounting engineering, the reliability and stability of the measuring or assembly platform are paramount. The method used to secure critical components must not compromise the integrity of the base material. UNPARALLELED Group provides metrology-grade threaded inserts designed for Precision Granite, Ceramic, Mineral Casting, and UHPC structures, ensuring a robust, permanent, and vibration-resistant connection.
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UNPARALLELED Standard Thread Inserts |
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Thread insert (M) |
Pitch |
Out Diamter(φ) |
Inner Diameter |
Insert Length |
Thread Length |
Torsion (NM) |
| M2 | 0.4 | φ6 | 1.6 | 15 | 6 | |
|
M3 |
0.5 |
φ8 |
2.5 |
20 |
10 |
2 |
|
M4 |
0.7 |
φ10 |
3.3 |
25 |
12 |
4 |
|
M5 |
0.8 |
φ12 |
4.3 |
30 |
15 |
8 |
|
M6 |
1 |
φ14 |
5 |
35 |
20 |
10 |
|
M8 |
1.25 |
φ16 |
6.8 |
40 |
25 |
30 |
|
M10 |
1.5 |
φ20 |
8.3 |
45 |
30 |
55 |
|
M12 |
1.75 |
φ25 |
10.3 |
50 |
35 |
95 |
| M14 | 2 | φ25 | 12 | 50 | 40 | |
|
M16 |
2 |
φ30 |
14 |
50 |
45 |
220 |
|
M20 |
2.5 | φ40 | 17.8 |
50 |
50 |
280 |
| M22 | 2.5 | φ40 | 18.7 | 55 | 55 | |
|
M24 |
3 |
φ50 |
21.3 |
55 |
55 |
450 |
|
M30 |
3 | φ50 | 27 |
60 |
60 |
550 |
| M36 | 3.5 | φ60 | 32.5 | 60 | 60 | |
| ... | ||||||
| Material: 303/304 stainless steel, peek... | ||||||
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The customized inserts are available , with dimensions, steps and tolerance according to customers' requests. |
quality control
The UNPARALLELED Advantage in Precision Fixing
Securing sensors, motors, linear guides, or specialized fixtures to a precision base requires more than just a standard fastener. Our inserts are engineered and manufactured under the strictest quality protocols, reflecting our commitment that "The precision business can't be too demanding."
Key Product Features and Benefits
- Materials for Stability: Standard inserts are made from Stainless Steel No. 304 (other materials like Aluminum or customized alloys are available upon request). Stainless Steel 304 offers excellent corrosion resistance, ensuring longevity and consistent performance in various operational environments.
- Permanent, High-Strength Bonding: The standard 304 stainless steel inserts are expertly applied using a specialized epoxy resin suitable for non-metallic bases. Each batch is rigorously tested for traction resistance to guarantee the utmost pull-out strength, ensuring your components remain fixed without risk of displacement.
- Vibration Damping: When integrated into our high-density UNPARALLELED® Black Granite (≈ 3100 kg/m³), the inserts contribute to the overall superior damping characteristics of the base, vital for high-resolution measurement tasks.
- Guaranteed Quality: Our manufacturing process is certified by ISO 9001, ISO 45001, and ISO 14001-a unique combination in this industry that assures quality, safety, and environmental responsibility.
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Technical Specifications and Installation Precision
The Ultra-Stable Component Mounting and depth of the threaded inserts are critical to prevent material distortion and ensure surface planarity. UNPARALLELED adheres to industry-leading standards for insert integration.
Installation and Positioning Details
| Feature | Specification | Precision Level |
| Standard Materials | Stainless Steel 304, Aluminum, Custom | High Corrosion Resistance |
| Bonding Agent | High-Strength Epoxy Resin | Tested for Traction Resistance |
| Standard Setback | $0 - 1 mm$ below the base surface | Designed to protect threads during use/handling. |
| Flush Option (Custom) | $0.01 - 0.025 mm$ | Used for specific metrology or alignment requirements. |
| Base Compatibility | Precision Granite, Precision Ceramic, Mineral Casting, UHPC | Comprehensive structural support. |
We work directly with customers to define the required setback. For the most demanding applications, we can deliver inserts flush with the surface to a tolerance of just $0.01 - 0.025 mm$, demonstrating our nanometer-level commitment to component assembly.
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Applications: The Backbone of Ultra-Precision Systems
Our precision granite inserts are indispensable components in any assembly requiring rigid, repeatable, and non-distorting mounting points.
These inserts are extensively used in:
- Metrology & Dimensional Measurement: Granite Surface Plates (serving as the primary metrology reference base), CMMs, Contour Measuring Instruments, and Coordinate Measuring Machines.
- Semiconductor Equipment: Wafer handling stages, lithography bases, and assembly fixtures for microchip manufacturing.
- Laser and Optical Systems: Bases for Femtosecond/Picosecond laser systems, AOI (Automated Optical Inspection), and industrial X-Ray/CT equipment.
- High-Speed Automation: Mounting points for Linear Motors and XY Tables where zero displacement under dynamic load is mandatory.
- Industrial Machine Bases: Integration into large Granite Machine Bases and components for PCB drilling machines and high-precision CNC equipment.
certificates

Maintenance and Longevity
Our threaded inserts are designed for permanent integration and require minimal maintenance, upholding our commitment: "No cheating, No concealment, No misleading."
- Cleaning: Keep the threads clean of dust and debris. A simple air blow or wiping with a lint-free cloth is sufficient.
- Inspection: Periodically inspect the epoxy joint for any signs of cracking or chipping, particularly after relocating the base or machine.
- Torque Check: When mounting components, adhere to the recommended torque specifications to prevent thread or epoxy damage. Do not overtighten.
By choosing UNPARALLELED® Threaded Inserts, you are partnering with a global leader in ultra-precision who controls every step, from selecting our superior ≈ 3100 kg/m³ black granite to the final, critically-tested insertion process.
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