Grade 5 Titanium Carriage Bolts
Ti-6Al-4V carriage bolts with a low-profile round head and square neck for lightweight, corrosion-resistant joints. Head geometry, neck, thread, length, finish and inspection follow the specified standard or drawing.
- Material
- Grade 5 / Ti-6Al-4V / UNS R56400
- Head & Neck
- Round head, square neck
- Threads
- Metric, UNC, UNF or drawing
- Documents
- MTC, dimensions and thread inspection
Product Detail
Product Introduction
Grade 5 titanium carriage bolts use a domed head and square neck to resist rotation when the neck is correctly seated in a compatible square hole or suitable material. The RFQ must define head and neck geometry, thread, length measurement, grip, mating nut and washer, installation method, finish and finished-fastener inspection.
Product Specifications
| Product | Grade 5 Titanium Carriage Bolts | Material | Titanium Grade 5 (Ti-6Al-4V, UNS R56400) |
|---|---|---|---|
| Product Form | Standard or drawing-specific titanium fastener | Typical Inquiry Range | Metric, inch and custom sizes confirmed at RFQ stage |
| Dimensional References | Expressly invoked standard or approved drawing | Threads / Dimensions | Metric coarse or fine, UNC, UNF or drawing-specific as applicable |
| Surface | Machined and cleaned; lubricant, anti-galling treatment or coating by agreement | Documents | MTC, heat/lot traceability and dimensional inspection report |
| Inspection | Dimensions, thread gauging, surface and agreed functional or mechanical tests | Supply Basis | Approved purchase order, invoked standard and drawing |
Typical inquiry ranges are not a stock guarantee. Final manufacturability, tolerances and test requirements are confirmed against the complete RFQ.
Selection and Configuration
- Head and neck geometry: Specify round-head diameter and height, square-neck width and depth, transition radii and the governing dimensional reference.
- Joint interface: Confirm that the square neck can seat without damaging the mating material and can resist the installation torque.
- Thread and length: Define metric or inch thread, class of fit, nominal length below the head, grip, threaded length and end form.
Send a drawing or complete fastener definition
Include dimensions, quantity, mating parts, service conditions, finish and inspection requirements.
Chemical Composition – Titanium Grade 5
Weight percent. Values are material limits; titanium is the balance.
| Al | V | Fe max | O max | C max | N max | H max | Residual each / total | Ti |
|---|---|---|---|---|---|---|---|---|
| 5.50–6.75 | 3.50–4.50 | 0.40 | 0.20 | 0.08 | 0.05 | 0.015 | 0.10 / 0.40 | Balance |
Mechanical Properties – Grade 5 Material Reference
| Property | Annealed Grade 5 Material Reference Minimum |
|---|---|
| Ultimate tensile strength | 895 MPa (130 ksi) |
| 0.2% yield strength | 828 MPa (120 ksi) |
| Elongation | 10% |
| Reduction of area | 25% |
Material values do not automatically establish finished-fastener loadability. Finished-part acceptance depends on geometry, manufacturing route, condition and the expressly invoked fastener specification or drawing.
Typical Physical Properties
| Property | Typical Value |
|---|---|
| Density | 4.43 g/cm³ |
| Elastic modulus | Approximately 114 GPa |
| Poisson ratio | Approximately 0.34 |
| Thermal conductivity | Approximately 6.7 W/m·K |
| Coefficient of thermal expansion | Approximately 8.6 µm/m·K |
| Melting range | Approximately 1604–1660°C |
Physical values are typical engineering references and are not inspection acceptance limits.
Certificates & Inspection Records
Services We Can Provide
Product Packaging
Grade 5 Titanium Carriage Bolts are separated by size and lot, protected against thread and surface damage, and labeled with grade, dimensions, quantity and traceability reference. Inner bags, cartons and export cases are selected according to product geometry, quantity and shipping method.
Application Scenarios
Chemical Processing
Corrosion-resistant equipment joints selected against the complete process environment.
Power & Energy
Lightweight engineered assemblies requiring controlled dimensions and traceability.
Marine & Shipbuilding
Corrosion-resistant joints subject to galvanic, preload and service-condition review.
FAQ
What prevents a titanium carriage bolt from turning?
The square neck beneath the round head is intended to seat in a compatible square hole or material capable of restraining rotation. Hole geometry, material strength and installation torque must be verified for the joint.
Does DIN 603 fully specify a Grade 5 titanium carriage bolt?
No. DIN 603 can be used as an agreed dimensional reference, but the order must separately define Ti-6Al-4V Grade 5 material, condition, thread acceptance, mechanical requirements, finish and documentation.
What information is needed for quotation?
Provide the dimensional standard or drawing, material grade, thread and fit, length, head and square-neck dimensions, mating nut and washer, quantity, finish, service environment, tests and certificates.
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