Grade 5 Titanium Shoulder Bolts
Grade 5 Titanium Shoulder Bolts with precision unthreaded shoulders and short threaded ends for corrosion-resistant pivots, guides and locating assemblies. Shoulder tolerance, length, thread and inspection follow the approved drawing.
- Material
- Grade 5 / Ti-6Al-4V / UNS R56400
- Form
- Socket-head precision shoulder bolt
- Critical Features
- Shoulder diameter, length and runout
- Documents
- MTC and dimensional inspection report
Product Detail
Product Introduction
Grade 5 Titanium Shoulder Bolts combine a precision cylindrical shoulder with a smaller threaded end. The shoulder may function as a bearing surface, pivot, guide or spacer, so diameter tolerance, surface finish, shoulder length, straightness, runout, head-to-shoulder transition and thread engagement must be controlled as a complete drawing-defined component.
Product Specifications
| Product | Grade 5 Titanium Shoulder 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
- Shoulder fit: Define shoulder diameter, tolerance class, surface finish and mating bore or bearing clearance.
- Length and transition: Control usable shoulder length, head fillet, thread relief and any undercut so mating parts seat without interference.
- Thread and loading: Specify thread, engagement, tightening method, shear and bending duty, mating material, lubrication and galling controls.
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 Shoulder 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 dimension is most important on a shoulder bolt?
The shoulder diameter, tolerance, usable shoulder length and relationship to the mating bore are usually critical. Runout, surface finish and the head fillet can also control fit and motion.
Can ISO 7379 dimensions be ordered directly in titanium?
The geometry can be reviewed, but the order must separately define titanium grade, condition, tolerances, mechanical acceptance, finish and inspection. Direct substitution from a steel part should not be assumed.
Is the threaded end intended to carry shear?
The joint should normally be designed so the precision shoulder carries the intended transverse load. Actual load paths, bending, engagement and safety factors require engineering review.
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Related Technical Guides
Titanium Standard Parts Selection Guide
Define grade, geometry, fit and inspection.
Read technical guideHow to Prevent Galling
Control thread friction and assembly.
Read technical guideTitanium RFQ Checklist
Prepare drawing, tolerance and documentation.
Read technical guide