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High Torque Brass Knurled Insert Nuts Custom Diamond Straight Thread Precision Fasteners
| Place of Origin | Shenzhen, China |
|---|---|
| Brand Name | TF |
| Certification | ISO9001 |
| Model Number | TF-008 |
| Minimum Order Quantity | 1 |
| Price | 0.10-0.60USD |
| Packaging Details | Carton packaging 18*15*12cm (packaging can be customized according to customer product requirements) |
| Delivery Time | 3days/Start |
| Payment Terms | T/T |
| Supply Ability | 10000000pieces/per month |
Product Details
| Core Feature | High Torque Knurl Design / Anti-Rotation & Anti-Loosening | Knurling Type | Diamond / Straight / Double / Custom Tooth Profile |
|---|---|---|---|
| Pull-Out Resistance | ≥120N / ≥200N / Customized Per Size & Pattern | Material Options | Lead-Free Eco Brass / C3604 Free-Cutting Brass |
| Thread Size | M2-M8 Metric / Unified / Non-Standard Custom | Compatible Plastics | ABS, PC, PA66, PBT, POM, PEEK |
| Inspection Method | 100% Thread Gauge / Profile Projector Dimension Check | Factory Certification | ISO 9001:2015 / IATF 16949:2016 |
| Highlight | high torque brass knurled nuts,custom diamond thread fasteners,precision CNC turned brass inserts |
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Product Description
High Torque Brass Knurled Insert Nuts
Custom Diamond Straight Thread Precision Fasteners
High Torque Brass Knurled Threaded Inserts for Demanding Plastic Fastening Applications
Product Overview
In applications subjected to continuous vibration or high dynamic loads, standard knurled nuts may rotate and loosen over time. Tingfeng Hardware specializes in the design and manufacture of high-torque brass inserts. By scientifically optimizing knurl tooth angle, depth, and arrangement, we provide several times the torque-out and pull-out resistance of standard parts. Whether you're dealing with difficult-to-bond materials like glass-filled nylon or connection points requiring frequent disassembly, we can provide targeted knurl design solutions to ensure rock-solid connections.
Technical Engineering
The retention force of an insert in plastic depends on the degree of mechanical interlock between the knurl design and the plastic melt. Standard knurls are often a "one-size-fits-all" compromise that cannot maximize performance for specific plastics and applications. Based on 15 years of precision manufacturing experience, Tingfeng Hardware has established a comprehensive "Knurl Performance Database" documenting torque and pull-out data for various tooth parameters across different engineering plastics.
Our value lies in data-driven knurl engineering. When you ask "How to achieve >200N torque resistance in PA66+GF30" or "How to prevent rotation in soft PP material," our engineers leverage database knowledge and simulation analysis to recommend or customize the optimal knurl solution—whether it's a deeper diamond knurl, a helical knurl with increased lead, or an annular groove design specifically for ultrasonic processes. We don't just manufacture inserts; we deliver connection reliability solutions. Our factory's Japanese Citizen Swiss-type lathes and multi-station forming machines ensure we can replicate these optimized designs in volume with ±0.02mm precision. As an IATF16949 certified factory serving 2,000+ global clients with >90% repeat orders, we have both the capability and experience to provide the most reliable guarantee for your critical connection points.
Features & Advantages
| Feature | Advantage to You |
|---|---|
| Data-Driven Knurl Customization Engineering | We maintain a performance database of various knurl parameters in different plastics. Rather than blind trial-and-error, we recommend or design optimal tooth profiles based on data, ensuring target torque and pull-out forces are achieved the first time. |
| Significantly Improved Torque & Pull-Out Strength | By optimizing parameters like tooth depth, pitch, and helix angle, our custom knurl solutions can provide several times the torque-out and pull-out resistance of standard generic knurls. |
| Special Designs for Difficult Materials | Expertise in solving insert retention issues in low surface energy or high shrinkage plastics like glass-filled nylon, POM, and PP. Offers dedicated solutions such as high-lead helical teeth and progressive bite teeth. |
| Full-Process Support from DFM to Test Validation | Provides DFM analysis during design phase, and installation parameter recommendations with push-out/torque-out test validation during sampling phase, reducing your development risk. |
| 15 Years Precision Manufacturing Assurance | IATF16949 certified factory with 300+ machines ensures optimized knurl designs are produced in volume with high precision and consistency. |
Product Specifications
| Specification Item | Detail / Capability | Notes / Description |
|---|---|---|
| Customizable Knurl Types | Diamond / Straight / Helical / Cross / Annular / Custom Combination | Tooth height, pitch, helix angle adjustable |
| Pull-Out Resistance Ref | M3: ≥80N / M4: ≥120N / M5: ≥200N | Specific values depend on knurl and plastic; test data available |
| Torque-Out Resistance Ref | M3: ≥2N*m / M4: ≥4N*m / M5: ≥6N*m | Higher torque can be designed per requirement |
| Recommended Thread Sizes | M2, M2.5, M3, M4, M5, M6, M8 | Non-standard sizes made to print |
| Recommended Plastics | ABS, PC, PA6, PA66, PA66+GF, PBT, POM, PP, PEEK | Optimal knurl recommended per material |
| Performance Validation Test | Can provide torque/pull-out test reports in specified plastic bosses | Quantitative verification of customization effect |
Product Applications
- High-End Sports Equipment: Threaded connection points subjected to high dynamic loads in carbon fiber bike components, golf equipment, and premium fitness gear.
- Precision Instruments & Measurement Devices: Fastening points requiring repeated disassembly for maintenance in handheld spectrometers and portable measurement device housings.
- Drones & Aerial Models: High-strength, vibration-resistant threaded fastening for drone frames and gimbal brackets.
Frequently Asked Questions
Q: Can you handle complex custom designs and provide design optimization suggestions?
A: Absolutely. This is our core expertise. We provide free DFM analysis within 3-5 days, often helping clients achieve 15-30% cost reduction through design for manufacturability.
Q: How do you ensure quality consistency and handle defect issues?
A: We implement a rigorous 4-stage QC system with 100% full inspection. Our track record shows 99.99% qualification rate.
Q: What are your lead times and how do you handle urgent orders?
A: Standard lead times: 3-7 days for prototypes, 7-15 days for mass production. We offer VIP prioritization cutting lead times by up to 30%.
Q: Will I get timely responses and professional support throughout the project?
A: Yes. You get a 1v1 exclusive consultant with 1-hour initial response commitment and 24-hour technical support.
Q: Can you provide material certifications and environmental compliance reports?
A: Yes. We provide material certifications and environmental test reports (RoHS, REACH compliant) upon request.
Q: How do you protect my designs and intellectual property?
A: We start with mutual NDA and implement strict mold ownership protection and confidential data security measures.
Q: What are your payment terms and MOQ requirements?
A: We offer flexible payment terms (T/T, L/C at sight) and MOQ from 1 piece for prototyping.
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