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Titanium Gr 2 Nuts are commercially pure titanium fasteners engineered for applications requiring exceptional corrosion resistance, low weight, and reliable mechanical performance in aggressive environments. These nuts are widely used alongside bolts and threaded components in industries such as chemical processing, marine engineering, desalination, and aerospace support systems. Manufactured in accordance with standards like ASTM B348, DIN 934, and ISO specifications, they deliver consistent thread engagement and long-term durability even in chloride-rich or oxidizing conditions.
Titanium Grade 2 offers an optimal balance of strength, ductility, and corrosion resistance, making it a preferred choice over stainless steel in highly reactive environments. At KK Fasteners, these nuts are produced with strict process control and material traceability, supporting global supply requirements across sectors that demand reliability under critical service conditions.
| Parameter | Details |
|---|---|
| Material | Titanium Grade 2 (UNS R50400) |
| Grade Options | Grade 2 (Commercially Pure Titanium) |
| Size Range | M3 to M64 / 1/8" to 2" |
| Thread Type | Metric (ISO), UNC, UNF, BSW |
| Standards | ASTM B348, ASTM F467, DIN 934, ISO 4032, BS 3692 |
| Types | Hex Nuts, Heavy Hex Nuts, Lock Nuts, Jam Nuts |
| Surface Finish | Plain, Pickled, Passivated |
| Tensile Strength | ~345 MPa |
| Hardness | ~150 HB (Brinell) |
| Temperature Resistance | Up to 400°C (service dependent) |
Titanium Gr 2 |
C |
Ti |
N |
Fe |
H |
O |
V |
Al |
0.1 max |
99.2 min |
0.03 max |
0.3 max |
0.015 max |
0.25 max |
– |
– |
Density |
Melting Point |
Yield Strength (0.2%Offset) |
Tensile Strength |
Elongation |
4.5 g/cm3 |
1665 °C (3030 °F) |
Psi – 39900 , MPa – 275 |
Psi – 49900 , MPa – 344 |
20 % |
STANDARD |
UNS |
WERKSTOFF NR. |
Titanium Gr 2 |
R50400 |
3.7035 |
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 |
Where are Titanium Gr 2 Nuts used?
Titanium Grade 2 nuts are used in environments where corrosion resistance, weight reduction, and long-term reliability are critical, particularly in aggressive chemical, marine, and high-humidity conditions.
Titanium Gr 2 Nuts are typically produced through precision machining or cold forming, followed by threading operations that ensure dimensional accuracy. Surface treatments such as pickling and passivation enhance corrosion resistance by removing contaminants and stabilizing the oxide layer.
At KK Fasteners, each batch undergoes rigorous inspection including thread gauge verification, hardness testing, and chemical composition analysis. Dimensional tolerances are maintained as per DIN and ISO standards, ensuring compatibility across global assemblies. Full traceability is maintained from raw material sourcing to finished product dispatch, supported by ISO 9001-compliant quality systems and adherence to RoHS and REACH requirements.
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Titanium Grade 2 nuts are commercially pure titanium fasteners used for joining threaded assemblies in corrosive environments. They offer excellent resistance to seawater, chemicals, and oxidizing agents while maintaining good ductility and moderate strength, making them suitable for marine, chemical, and industrial applications.
Titanium Grade 2 offers a unique balance of corrosion resistance, lightweight structure, and moderate tensile strength. It performs exceptionally well in chloride-rich and acidic environments, making it ideal for marine systems, desalination plants, and chemical processing equipment where stainless steel may degrade faster.
These nuts are typically manufactured in compliance with ASTM B348 (material standard), ASTM F467 (fasteners), and dimensional standards such as DIN 934, ISO 4032, and BS 3692. These standards ensure interchangeability, dimensional accuracy, and global compatibility.
Selection depends on operating environment, load conditions, and bolt compatibility. Titanium Grade 2 is best for corrosion-heavy environments with moderate loads. For high-strength structural applications, alternative titanium alloys may be considered, but Grade 2 remains ideal for chemical and marine exposure.
A reliable supplier should provide ISO-certified production, full material traceability, compliance with international standards, and documented inspection reports. Global supply experience, consistent quality control, and engineering support are also key indicators. KK Fasteners supplies Titanium Grade 2 nuts to international markets with strict inspection protocols and traceable material certification.
Titanium Gr 2 Nuts provide a reliable solution for corrosion-critical environments where conventional materials fail over time. With controlled manufacturing processes and global distribution capability, KK Fasteners ensures consistent quality and traceability for every order. For project-specific requirements or bulk inquiries, connect with the engineering team to request a detailed quote or technical consultation.
