Blind Threaded Inserts For Metal
Weight Range ： 0.5g–500kg
Dimensional tolerance ： ±0.1mm
Blind threaded inserts for metal are fastening solutions designed specifically for metal materials. It enhances connection performance by embedding high-strength internal threads in blind holes. The tensile strength of this design can exceed 1100 MPa. It can increase the thread load-bearing capacity of soft metals several times. Its single-sided mounting feature is very practical. There is no need to touch the back of the workpiece during installation. This increases assembly efficiency by approximately 70%. Especially suitable for closed structures such as boxes and frames. It has obvious advantages in on-site construction and efficient production.
The thread insert also significantly extends thread life. As a wear-resistant bushing, it can increase the number of repeated disassembly and assembly from a dozen times to more than 50 times. This perfectly meets the needs of equipment requiring frequent maintenance. In terms of corrosion resistance, high-quality stainless steel materials can pass the 500-hour standard salt spray test. This ensures long-term stability in wet and corrosive environments.
Parameter
JOYEAR offers clients all over the world high-volume, highly effective export solutions for industrial components. We craft our custom metal products with skill. Our skilled team will accurately create tangible parts that meet your requirements if you send us your design files, whether they are digital drafts or prototypes.
| Property / Parameter | Stainless Steel | Alloy Steel | Brass |
|---|---|---|---|
| Tensile Strength | ≥ 700 MPa | ≥ 1100 MPa | Approx. 400 MPa |
| Typical Hardness | HRB 85 - 95 | HRC 32 - 39 | HRB 60 - 80 |
| Corrosion Resistance | ⭐⭐⭐ | ⭐ | ⭐⭐⭐ |
| Electrical Conductivity | ⭐ | ⭐ | ⭐⭐⭐ |
| Density (g/cm³) | 7.9 | 7.8 | 8.5 |
★ Our product range includes:
► Materials: Carbon steel / Mild steel / Structural steel / Stainless steel / Aluminum / Copper, etc.
► Forms: Sheets / Profiles / Tubes / Round bars / Flat bars / Square bars, etc.
Drawing Design & Confirm
Obtain drawings from clients or produce drawings based on their samples or specifications.
Both parties attest to the drawings, product raw materials, surface treatment, and other details.
Advantages
Strong thread repair and standardization capabilities
When the threads on the base material fail due to wear, stripping or machining errors, blind hole thread inserts are the perfect repair solution.
It allows you to use a standard size drill bit (for example, to repair a damaged M6
threaded hole, just drill an 8.4mm diameter bottom hole) and then insert the thread insert to get a new, even stronger, standard internal thread.
This saves many high-value parts that might otherwise be scrapped, reducing repair costs to 10%-20% of the cost of new parts.
Allows for a higher number of repeated disassembly
Threads tapped directly into soft base materials may only be able to withstand repeated disassembly and assembly of bolts 10-20 times before they slip. As a hard bushing, the blind hole screw sleeve can increase the number of disassembly and assembly times to more than 50 times.
For example, on equipment panels or covers that require frequent opening and closing for maintenance, the use of thread sleeves can ensure that the threads are reliable and durable throughout the equipment life cycle, greatly improving the maintainability of the product and the user experience.
Excellent thermal management
When experiencing severe temperature changes, blind hole thread inserts can effectively alleviate the stress caused by the difference in thermal expansion coefficients between different materials. For example, stainless steel has a coefficient of thermal expansion of about 17 x 10⁻⁶ per degree Celsius, while aluminum alloys have a coefficient of thermal expansion of about 23 x 10⁻⁶.
When the two are matched, the thread sleeve acts as a buffer interface that can absorb most of the internal stress caused by temperature differences (such as fluctuations exceeding 100°C) and prevent the threaded holes from cracking due to thermal fatigue, which is crucial for engine parts or casting molds working in high-temperature environments.
Excellent tolerance compensation
During processing or repair, there may be errors in the bottom hole dimensions. Blind hole thread inserts have good adaptability. For example, even if the bottom hole has a deviation of ±0.1 mm, the expansion screw sleeve can fill the gap by deforming itself.
This ensures that the tightening torque remains above 80% of the design requirements. This feature reduces the processing accuracy requirements and improves the production qualification rate. It is especially suitable for batch manufacturing and rapid maintenance.
Why choose us
Perfectly repair threaded holes
Quickly repair damaged threads. No complicated process required. Easily restore connection strength.
Anti-vibration performance
Unique locking design. Effectively resist vibration. Suitable for harsh working conditions.
Thread durability
Acts as a wear-resistant bushing. Disperse bolt stress. Meet frequent maintenance needs.
Efficient installation
Only one side of operation is required. No need to turn the workpiece over. Efficiency is greatly improved.
Price & Order
Provide a quote, ensure that the order quantity is accurate, and include all relevant details.
Such as the conditions of trade, the terms of payment, the type of packaging, etc.
Sample Approval
Make sure your initial prototypes match the illustration.
After internal approval, send to the customer for approval.
Production & Shipping
Follow the original drawings and samples exactly when producing the goods.
It was carefully packaged and delivered to the clients following a final inspection.
Conclusion
JOYEAR is a respectable hardware manufacturer with twenty years of industry experience. We have developed a strong reputation and technical expertise through reliable, superior production. Our group provides solutions that are customized to meet your needs. We work closely with you to make any original custom designs a reality. We also integrate and recommend related products based on your applications to maximize purchasing value and operational efficiency.
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