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Product Overview
Titanium Grade 5 (Ti-6Al-4V) screws are high-performance fasteners manufactured from the alpha-beta titanium alloy UNS R56400, conforming to ASTM B348 and ASTM F136 standards. This alloy contains 6% aluminium and 4% vanadium, providing an exceptional combination of high strength-to-weight ratio, corrosion resistance, and excellent fatigue properties. Titanium Grade 5 screws are widely specified in aerospace, marine, medical, and high-performance engineering applications where weight savings and reliability are critical.
With a minimum tensile strength of 895 MPa and outstanding resistance to chloride-induced corrosion, Ti-6Al-4V screws are the industry standard for demanding bolted joints in aggressive environments, including saltwater, chemical processing, and high-temperature service up to 400°C.
| Material | Titanium Grade 5 (Ti-6Al-4V) |
| UNS Number | R56400 |
| DIN Number | 3.7165 |
| Material Standard | ASTM B348 / ASTM F136 |
| Screw Standard (Metric) | DIN 912 / DIN 7991 / ISO 4762 |
| Screw Standard (Inch) | ASME B18.3 |
| Thread Form | ISO Metric / UNC / UNF |
| Diameter Range | M3-M36 / #4-1½" |
| Tensile Strength | 895 MPa (130 ksi) min |
| Yield Strength | 828 MPa (120 ksi) min |
| Hardness | Max 36 HRC / 349 HV |
Complete the Fastener Set
Technical Data
| Size (M) | Pitch (mm) | Head Dia (mm) | Head Ht (mm) | Hex Socket (mm) | Min L (mm) | Max L (mm) |
|---|---|---|---|---|---|---|
| M3 | 0.5 | 5.5 | 3.0 | 2.5 | 6 | 50 |
| M4 | 0.7 | 7.0 | 4.0 | 3.0 | 8 | 60 |
| M5 | 0.8 | 8.5 | 5.0 | 4.0 | 10 | 70 |
| M6 | 1.0 | 10.0 | 6.0 | 5.0 | 12 | 80 |
| M8 | 1.25 | 13.0 | 8.0 | 6.0 | 16 | 100 |
| M10 | 1.5 | 16.0 | 10.0 | 8.0 | 20 | 120 |
| M12 | 1.75 | 18.0 | 12.0 | 10.0 | 25 | 150 |
| M16 | 2.0 | 24.0 | 16.0 | 14.0 | 30 | 200 |
| M20 | 2.5 | 30.0 | 20.0 | 17.0 | 35 | 250 |
| M24 | 3.0 | 36.0 | 24.0 | 19.0 | 40 | 300 |
| M30 | 3.5 | 45.0 | 30.0 | 22.0 | 50 | 400 |
| M36 | 4.0 | 54.0 | 36.0 | 27.0 | 60 | 500 |
| Standard | Covers | Thread |
|---|---|---|
| DIN 912 | Socket head cap screws | Metric |
| DIN 7991 | Countersunk socket screws | Metric |
| ISO 4762 | Hex socket head screws | Metric |
| ASME B18.3 | Socket cap, flat, button head | UNC/UNF |
| ISO 14580 | Low head socket screws | Metric |
| ISO 7380 | Button head socket screws | Metric |
| Material Standard | Requirement |
|---|---|
| ASTM B348 | Bar/rod - Ti-6Al-4V |
| ASTM F136 | Medical implant grade |
| AMS 4928 | Aerospace bar/rod |
| EN 10204 3.1 | Mill test certificate |
| EN 10204 3.2 | TPI-witnessed MTC |
Material Chemistry
| Element | Composition (%) |
|---|---|
| Titanium (Ti) | Balance |
| Aluminium (Al) | 5.5-6.75 |
| Vanadium (V) | 3.5-4.5 |
| Iron (Fe) | 0.40 max |
| Oxygen (O) | 0.20 max |
| Carbon (C) | 0.08 max |
| Nitrogen (N) | 0.05 max |
| Hydrogen (H) | 0.015 max |
| Other Elements | 0.40 max (each 0.10) |
Fastener Performance
| Screw Size | Dry (Nm) | Lubricated (Nm) | Clamp Load (kN) |
|---|---|---|---|
| M6 | 11 | 9 | 13 |
| M8 | 27 | 22 | 21 |
| M10 | 54 | 43 | 34 |
| M12 | 94 | 75 | 49 |
| M16 | 230 | 184 | 98 |
| M20 | 450 | 360 | 153 |
| M24 | 780 | 624 | 221 |
Industry Applications
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