
Grade 5 Titanium Button Head Socket Screws
Grade 5 Titanium Button Head Socket Screws with low rounded heads and internal hex drives for corrosion-resistant assemblies requiring a broad bearing face and reduced head profile.
- Material
- Grade 5 / Ti-6Al-4V / UNS R56400
- Head
- Rounded button head
- Drive
- Internal hex socket
- Documents
- MTC, dimensions and thread inspection
Product Detail
Product Introduction
Grade 5 Titanium Button Head Socket Screws combine an internal-hex drive with a low rounded head and broad underside bearing surface. Selection must account for available wrenching depth, permitted head projection, bearing stress, required clamp load, thread engagement, mating material, tightening method and galling control.
Product Specifications
| Product | Grade 5 Titanium Button Head Socket Screws | 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 envelope: Define head diameter, height, bearing face and clearance around the rounded profile.
- Drive capacity: Confirm socket size, key engagement and installation torque because the shallow head provides less drive depth than many standard socket heads.
- Joint definition: Specify thread, fit, length, grip, engagement, mating material, washer use, preload method and service environment.
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 Button Head Socket Screws 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
Why select a button head socket screw?
It provides a smooth low rounded profile and broad bearing face where a standard cylindrical socket head is too tall. Available drive depth and permitted tightening torque must still be checked.
Does ISO 7380-1 define the titanium material?
No. It can define geometry when invoked, while titanium grade, condition, mechanical acceptance, finish, tests and certificates must be specified separately.
Can a button head screw replace a standard socket head cap screw?
Not automatically. Head strength, socket depth, installation torque, bearing area, clamp load and clearance differ and require joint review.
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