Titanium Gr 5 Nuts are high-strength fastening components manufactured from Ti-6Al-4V alloy, widely used in applications where strength-to-weight ratio, corrosion resistance, and thermal stability are critical. These nuts conform to international standards such as ASTM B348, DIN, and ISO specifications, ensuring compatibility across global engineering systems. Designed for demanding environments, they are extensively used in aerospace assemblies, marine equipment, and high-performance automotive systems.

The primary advantage of Titanium Gr 5 Nuts lies in their ability to deliver exceptional tensile strength while maintaining nearly 40% lower weight compared to steel alternatives. This makes them ideal for applications where reducing structural load without compromising performance is essential.
KK Fasteners supplies these precision-engineered nuts to international clients across industries, with full material traceability and compliance documentation supporting each batch.
| Parameter | Specification |
|---|---|
| Material | Titanium Grade 5 (Ti-6Al-4V) |
| Standards | ASTM B348, DIN 934, ISO 4032, ASME B18.2.2 |
| Size Range | M3 to M64 / 1/8" to 2" |
| Thread Type | Metric, UNC, UNF, BSW |
| Type Variants | Hex Nuts, Heavy Hex Nuts, Lock Nuts, Jam Nuts |
| Surface Finish | Natural Titanium Finish, Passivated |
| Tensile Strength | ~900 MPa |
| Hardness | 30–36 HRC |
| Temperature Resistance | Up to 400°C |
Titanium Gr 5 |
C |
Ti |
N |
Fe |
H |
O |
V |
Al |
0.10 max |
90 min |
0.05 max |
0.40 max |
0.015 max |
0.20 max |
3.5-4.5 |
5.5-6.75 max |
Density |
Melting Point |
Yield Strength (0.2%Offset) |
Tensile Strength |
Elongation |
4.43 g/cm3 |
1632 °C (2970 °F) |
Psi – 128000 , MPa – 880 |
Psi – 138000 , MPa – 950 |
14 % |
STANDARD |
UNS |
WERKSTOFF NR. |
Titanium Gr 5 |
R56400 |
3.7165 |
All measurements in millimeters
Nominal Size or Basic Major Thread Diameter |
F |
G |
H |
||||||
Width Across Flats |
Width Across Corners |
Thickness |
|||||||
Basic |
Max |
Min |
Max |
Min |
Basic |
Max |
Min |
||
1/4 |
.2500 |
1/2 |
.500 |
.488 |
.577 |
.556 |
15/64 |
.250 |
.218 |
5/16 |
.3125 |
9/16 |
.562 |
.546 |
.650 |
.622 |
19/64 |
.314 |
.280 |
3/8 |
.3750 |
11/16 |
.688 |
.669 |
.794 |
.763 |
23/64 |
.377 |
.341 |
7/16 |
.4375 |
3/4 |
.750 |
.728 |
.866 |
.830 |
27/64 |
.441 |
.403 |
1/2 |
.5000 |
7/8 |
.875 |
.850 |
1.010 |
.969 |
31/64 |
.504 |
.464 |
9/16 |
.5625 |
15/16 |
.938 |
.909 |
1.083 |
1.037 |
35/64 |
.568 |
.526 |
5/8 |
.6250 |
1-1/16 |
1.062 |
1.031 |
1.227 |
1.175 |
39/64 |
.631 |
.587 |
3/4 |
.7500 |
1-1/4 |
1.250 |
1.212 |
1.443 |
1.382 |
47/64 |
.758 |
.710 |
7/8 |
.8750 |
1-7/16 |
1.438 |
1.394 |
1.660 |
1.589 |
55/64 |
.885 |
.833 |
1 |
1.0000 |
1-5/8 |
1.325 |
1.575 |
1.876 |
1.796 |
63/64 |
1.012 |
.956 |
1-1/8 |
1.1250 |
1-13/16 |
1.812 |
1.756 |
2.093 |
2.002 |
1-7/64 |
1.139 |
1.079 |
1-1/4 |
1.2500 |
2 |
2.000 |
1.938 |
2.309 |
2.209 |
1-7/32 |
1.251 |
1.187 |
1-3/8 |
1.3750 |
2-3/16 |
2.188 |
2.119 |
2.526 |
2.416 |
1-11/32 |
1.378 |
1.460 |
1-1/2 |
1.5000 |
2-3/8 |
2.375 |
2.300 |
2.742 |
2.622 |
1-15/32 |
1.505 |
1.433 |
1-5/8 |
1.6250 |
2-9/16 |
2.562 |
2.481 |
2.959 |
2.828 |
1-19/32 |
1.632 |
1.556 |
1-3/4 |
1.7500 |
2-3/4 |
2.750 |
2.662 |
3.175 |
3.035 |
1-23/32 |
1.759 |
1.679 |
2 |
2.0000 |
3-1/8 |
3.125 |
3.025 |
3.608 |
3.449 |
1-31/32 |
2.013 |
1.925 |
2-1/4 |
2.2500 |
3-1/2 |
3.500 |
3.388 |
4.041 |
3.862 |
2-13/64 |
2.251 |
2.155 |
2-1/2 |
2.5000 |
3-7/8 |
3.875 |
3.750 |
4.474 |
4.275 |
2-29/64 |
2.505 |
2.401 |
2-3/4 |
2.7500 |
4-1/4 |
4.250 |
4.112 |
4.907 |
4.688 |
2-45/64 |
2.759 |
2.647 |
3 |
3.0000 |
4-5/8 |
4.625 |
4.475 |
5.340 |
5.102 |
2-61/64 |
3.013 |
2.893 |
3-1/4 |
3.2500 |
5 |
5.000 |
4.838 |
5.774 |
5.515 |
3-3/16 |
3.252 |
3.124 |
3-1/2 |
3.5000 |
5-3/8 |
5.375 |
5.200 |
6.207 |
5.928 |
3-7/16 |
3.506 |
3.370 |
3-3/4 |
3.7500 |
5-3/4 |
5.750 |
5.562 |
6.640 |
6.341 |
3-11/16 |
3.670 |
3.616 |
4 |
4.0000 |
6-1/8 |
6.125 |
5.925 |
7.073 |
6.755 |
3-15/16 |
4.014 |
3.862 |
Titanium Gr 5 Nuts are used in high-performance applications where strength, corrosion resistance, and weight reduction are critical factors.
Titanium Gr 5 Nuts are typically produced through precision CNC machining and cold forming processes, followed by threading and finishing operations. Each batch undergoes strict quality checks, including dimensional inspection using calibrated gauges, hardness testing, and surface finish verification.
Material traceability is maintained from raw material sourcing to final dispatch, ensuring compliance with ASTM and ISO standards. KK Fasteners follows structured quality control procedures aligned with ISO 9001 certification, ensuring consistent product performance across global shipments. Additional testing such as ultrasonic inspection or chemical composition verification can be conducted upon request.

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Titanium Grade 5 nuts are high-strength fasteners made from Ti-6Al-4V alloy, offering an excellent strength-to-weight ratio, corrosion resistance, and thermal stability. They are commonly used in aerospace, marine, and industrial applications where durability and performance are critical.
Yes, Ti-6Al-4V nuts provide excellent corrosion resistance due to the formation of a stable oxide layer on the surface. This protects them against seawater, chlorides, and many industrial chemicals, making them suitable for aggressive environments.
Titanium fasteners, including Grade 5 nuts, typically conform to standards such as ASTM B348, DIN 934, ISO 4032, and ASME B18.2.2. These standards ensure dimensional accuracy, material consistency, and global compatibility.
Grade 5 titanium nuts are ideal for high-strength, load-bearing applications, while Grade 2 is better suited for environments requiring superior corrosion resistance with lower mechanical stress. Selection depends on load requirements and exposure conditions.
A reliable supplier should offer ISO-certified production, full material traceability, adherence to ASTM/DIN standards, and proven export experience. KK Fasteners supports global clients with documented quality assurance and consistent supply.
Titanium Gr 5 Nuts offer a reliable solution for demanding engineering environments where strength, corrosion resistance, and weight optimization are essential. With controlled manufacturing processes and global supply capability, KK Fasteners ensures consistent quality and traceable materials for every order.
For project-specific requirements or bulk inquiries, connect with the team to request a detailed quotation or technical datasheet.