Products
Rooted in China's Titanium Valley, Innovating Premium Titanium Alloy Fasteners
Titanium Alloy M4 M5 Self Tapping Screws
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High-Intensity
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Corrosion-Resistant
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Fatigue Resistance
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Diamagnetism
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Project |
Specification |
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Product Name |
Titanium Alloy M4 M5 Self Tapping Screws |
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Material |
Titanium Alloy |
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Brand |
BJCJTi |
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Core Advantage |
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Performance |
Efficient and damage-free completion of high-intensity self-tapping operations, fully leverage the strength potential of titanium alloys |
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Special Properties |
Create permanent, robust threads in corrosive environments |
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Application |
Aerospace, High-end medical and human implantation fields， Marine engineering， High-performance sports and consumer equipment， Chemical and process industry， Precision electronics and special industry |
ChengJin has millions of standard titanium alloy parts in stock, offering fast shipping and stable delivery times.
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Details Description
Core Advantage:
Efficiently and damage-free completion of high-intensity self-tapping operations,
Fully leverage the strength potential of titanium alloys,
Create permanent, robust threads in corrosive environments.
| Screw Thread d | ST2.2 |
| P - Pitch | 0.8 |
| a - max | 0.8 |
| d_k - max | 3.7 |
| d_k - min | 3.4 |
| k - max | 1.6 |
| k - min | 1.4 |
| d_c - h15 - max | 5 |
| d_c - h15 - min | 4.52 |
| s - min | 0.3 |
| s - C | 2 |
| y - F, FT | 1.6 |
| Socket No. | 0 |
| M - = | 1 |
| Insert Depth / max | 0.85 |
| Insert Depth / min | 1.2 |
| Screw Thread d | ST2.2 | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 |
| P - Pitch | 0.8 | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| a - max | 0.8 | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| d_k - max | 3.7 | 5.3 | 6.64 | 7.64 | 9.14 | 10.57 | 11.57 |
| d_k - min | 3.4 | 5 | 6.28 | 7.28 | 8.78 | 10.14 | 11.14 |
| k - max | 1.6 | 2.4 | 2.6 | 3.1 | 3.7 | 4 | 4.6 |
| k - min | 1.4 | 2.15 | 2.35 | 2.8 | 3.4 | 3.7 | 4.3 |
| d_c - h15 - max | 5 | 7 | 8 | 9 | 10 | 12.5 | 14 |
| d_c - h15 - min | 4.52 | 6.42 | 7.42 | 8.42 | 9.42 | 11.8 | 13.3 |
| s - min | 0.3 | 0.5 | 0.8 | 0.8 | 0.8 | 1 | 1 |
| s - C | 2 | 2.6 | 3.2 | 3.7 | 4.3 | 5 | 6 |
| y - F, FT | 1.6 | 2.1 | 2.5 | 2.8 | 3.6 | 3.6 | 6 |
| Socket No. | 0 | 1 | 2 | 2 | 2 | 3 | 3 |
| M - = | 1 | 3 | 3.9 | 4.4 | 4.9 | 6.4 | 6.9 |
| Insert Depth / max | 0.85 | 1.4 | 1.4 | 1.9 | 2.4 | 2.6 | 3.1 |
| Insert Depth / min | 1.2 | 1.8 | 1.9 | 2.4 | 2.9 | 3.1 | 3.6 |
Regarding titanium products, the surface treatments we can offer include PVD vacuum coating and anodizing, etc. The available colors are black, green, purple, gold, yellow, burnt blue, and rainbow color, etc.
Honors and Qualifications
CE
IOS 9001
SGS
TUV
Mechanical Property Testing
Raw Material Testing Report
Management Certification
Professional Certificate
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Main features and advantages
Low density: The density of titanium (about 4.51 g/cm ³) is only 60% of that of steel (about 7.8 g/cm ³), but its strength is comparable to high-strength alloy steel.
High specific strength: The tensile strength is ≥ 895 MPa, which is much higher than that of ordinary stainless steel (such as A2-70, which is about 700 MPa) and low carbon steel, and comparable to high-strength alloy steel.
Ultimate Tensile Strength (UTS): ≥ 895 MPa
Yield Strength (0.2% offset): ≥ 828 MPa
Shear Strength: Approximately 538~621 MPa
Typical Elongation Value: ≥ 10%
After solid solution aging treatment:
After proper solution aging treatment, the tensile strength can reach ≥ 1100 MPa, or even higher, far superior to the annealed state (about 900 MPa). At the same time, the yield strength is also significantly increased. While achieving ultra-high strength, it can still maintain an elongation rate of ≥ 8%.
Material aspect
(Made of titanium alloy, commonly Ti-6Al-4V (GR5/TC4). ）
*Extremely high strength to weight ratio (specific strength): Its strength is comparable to high-strength alloy steel, but its density is only about 60% of steel.
Structural design
The head adopts a star shaped Torx flower shape with 6 arc lobes, also known as a plum blossom groove, which provides a much larger tool contact area, allowing torque to be evenly distributed and has extremely high torque transmission efficiency. The tool fits perfectly with the slot, avoiding the screwdriver head from slipping out during high-speed installation or high torque, almost eliminating "slipping teeth". Due to uniform force distribution, the wear and damage of the tool head are reduced, and the tool life is extended
*The design of self tapping threads has excellent cutting and chip removal capabilities, high pull-out resistance, and is suitable for thin plates.
*The pointed design of the guide cone has a slender cone shape, which facilitates precise positioning in pre drilled holes and easily guides screw tapping.
*The head design is diverse, such as pan head, countersunk head, semi countersunk head, hexagonal flange head, etc., providing multiple functional options.
*The pointed design of the guide cone has a slender cone shape, which facilitates precise positioning in pre drilled holes and easily guides screw tapping.
*The head design is diverse, such as pan head, countersunk head, semi countersunk head, hexagonal flange head, etc., providing multiple functional options.
Excellent corrosion resistance performance
*Once exposed to air or water, the metallic properties of titanium will spontaneously form an extremely thin (about 1-3 nanometers) but highly dense, stable, and adhesive oxide film on its surface. If this protective film is damaged due to mechanical scratches or wear, the exposed fresh titanium surface will immediately react with even trace amounts of oxygen or moisture in the environment, regenerating an oxide film and achieving "self-healing". This advantage is often used in key scenarios such as marine environments (dominant position), chemical and process industries, medical and human implantation, daily and other industrial environments.
Excellent biocompatibility and low magnetism
*Titanium is extremely stable in the complex bodily fluid environment of the human body, with almost no corrosion or dissolution, and does not release toxic or allergenic metal ions to surrounding tissues. It does not cause inflammation, allergies, or rejection reactions and is one of the safest materials for long-term contact or implantation in the human body. It is the cornerstone material for manufacturing orthopedic implants (bone screws, bone plates), dental implants, skull repair plates, and high-end surgical instruments (such as screws used for robotic surgery).
*Titanium is a paramagnetic material with a very low magnetic susceptibility, appearing completely non-magnetic at the macroscopic level and will not be magnetized in any strength of magnetic field. It will not cause any magnetic field interference to surrounding precision electronic devices, scientific experimental instruments, or navigation systems. No displacement, heat risk, and no image artifacts.
*Titanium is a paramagnetic material with a very low magnetic susceptibility, appearing completely non-magnetic at the macroscopic level and will not be magnetized in any strength of magnetic field. It will not cause any magnetic field interference to surrounding precision electronic devices, scientific experimental instruments, or navigation systems. No displacement, heat risk, and no image artifacts.
Excellent high and low temperature performance
*Within the working temperature range of 300 ° C to 600 ° C, titanium alloys can still maintain high strength and the strength decreases slowly, with a high high-temperature strength retention rate. Under long-term high temperature loads, it can continuously maintain pre tension. Excellent antioxidant performance effectively prevents oxygen from diffusing inward, preventing further oxidation and scaling of the material.
*As the temperature decreases, the strength of titanium alloy will significantly increase, instead of decreasing; Even at ultra-low temperatures, titanium alloys maintain excellent toughness and plasticity without becoming brittle.
*As the temperature decreases, the strength of titanium alloy will significantly increase, instead of decreasing; Even at ultra-low temperatures, titanium alloys maintain excellent toughness and plasticity without becoming brittle.
Product Comparison
Titanium Self Tapping Screws are mechanical fasteners with a plum blossom groove on the head, sharp self tapping threads on the shaft, and a guiding or drill shaped tip at the end. When using, select a matching plum blossom screwdriver head and apply force to rotate it directly at the predetermined position. Its tip will drill and tap on its own, completing drilling, tapping, and fastening in one step without the need for pre tapping.
| Features | Titanium Self-Tapping Torx Screws (Ti-6Al-4V) | Carbon Steel Screws (Typically Zinc-Plated) | Stainless Steel Screws (Typically 304/316) |
| Strength-to-Weight Ratio | Extremely high. Strength comparable to high-strength alloys, but weight is only about 60% of copper. | High strength, but high density and heavy. | Lower than high-quality titanium alloys, and weight is about 50% heavier than titanium. |
| Corrosion Resistance | Forms a dense oxide film, resistant to seawater, chlorine gas, and various chemicals. No grain boundary corrosion. | Relies on a surface plating layer; rapid corrosion occurs after the plating layer is damaged. | May experience pitting corrosion and stress corrosion cracking in chlorine-containing environments. |
| Biocompatibility | Non-toxic, harmless, non-sensitizing, and highly compatible with human tissues. | Metal ions may be harmful to the human body, potentially causing allergies and rejection. | A small portion of the population is allergic to nickel ions. |
| Magnetism | Completely non-magnetic. | Magnetic. | Most models have weak magnetism (Austenitic stainless steel). |
| Thermal Strength | Maintains good mechanical properties at both high and low temperatures. | Strength drops significantly at high temperatures. | Oxidizes and loses strength at high temperatures. |
Customer Reviews
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A globally certified supplier of titanium alloy fasteners with decades of manufacturing experience. We maintain a year-round inventory of over a million items. Trusted experts in the titanium alloy industry—click here to request a quote.
Our Logistics
our factory
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Core competence: Irreplaceability in Application Scenarios
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Aerospace field
Aircraft skin, cabin interior panels, floor beams, engine compartment, spacecraft structural components, rocket fuel storage tanks, etc.
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High end medical and human implantation fields
Internal implantation, medical equipment, etc.
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Ocean Engineering and Shipbuilding
Ship structure, deck equipment, seawater pipeline system, deep-sea exploration equipment, seawater desalination plant.
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High performance sports and consumer equipment
Top level racing bike frames and components, racing engine parts, high-end eyeglass frames, professional model drones, and high-end watch cases.
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Chemical and Process Industries
Chemical reaction vessels, heat exchangers, pump valves, pipeline flanges, and equipment in chloride containing media.
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Precision Electronics and Special Industries
Internal components of electron microscopes, mass spectrometers, high vacuum equipment, semiconductor manufacturing equipment.
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Suitability for Compact Spaces
The hex socket hole is relatively shallow, and the bolt head is thinner, making it ideal for installation in confined spaces such as electronic devices and precision instruments.
High Torque Transmission Efficiency
Hex socket wrenches have a larger contact area with the bolt hole, reducing the risk of slippage during force application. This allows for higher torque to be applied, ensuring firm fastening—particularly important in vibration-prone environments.
Anti-Loosening and Aesthetic Benefits
The flat head design allows for countersunk installation (flush with the surface of the workpiece), minimizing protrusion and wear risks while improving the overall clean appearance of the equipment.
Corporate Culture
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FAQ
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Q: What types of titanium fasteners do you offer?
+A: We offer a wide range of standard and custom titanium fasteners, including but not limited to:• Titanium Bolts: Hex head bolts, countersunk bolts, round head bolts, Torx bolts, 12-point bolts, flange bolts, etc.• Titanium Nuts: Hex nuts, square nuts, flange nuts, lock nuts, slotted nuts, T-nuts, cap nuts, etc.• Titanium Washers: Flat washers, spring washers, lock washers, etc.• Titanium Screws: Machine screws, self-tapping screws, slotted screws, Phillips head screws, hex socket screws, Torx screws, set screws, etc.• Custom/Special Parts: We manufacture various complex titanium alloy connectors according to customer drawings and specific requirements. -
Q: Do you offer OEM/ODM customization services?
+A: Yes, we provide comprehensive OEM/ODM customization services. With advanced production equipment, an experienced team of engineers, and a strict quality control system, we offer one-stop customized solutions—from material selection and prototyping to mass production and surface treatment—based on your design drawings, technical specifications, and application requirements. -
Q: How do you ensure the quality of your titanium fasteners?
+A: Quality is our foremost commitment. We have strict processes in place to control the quality of our products. We use high-quality raw materials, employ advanced manufacturing techniques, and conduct rigorous quality inspections to ensure the final product meets the highest standards. -
Q: How does the price of titanium fasteners compare to regular steel fasteners?
+A: Due to the higher cost of titanium alloy raw materials and more complex manufacturing processes, titanium fasteners are typically priced higher than standard steel fasteners. However, considering their exceptional performance in extreme environments, longer lifespan, lower maintenance costs, and unique advantages in areas such as lightweight design and biocompatibility, titanium fasteners offer significant overall cost-effectiveness in many high-value applications. -
Q: How do I choose the right titanium alloy grade for my application?
+A: The choice of the appropriate titanium alloy grade depends on your specific application requirements. If you're unsure which grade is best suited, our team of professional engineers can provide detailed consultations and recommendations based on your application scenario and technical specifications. -
Q: What is the delivery time for your products?
+A: The typical production lead time is approximately 20 days.