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Titanium Gr 2 Bolts are commercially pure titanium fasteners engineered for applications requiring exceptional corrosion resistance, high strength-to-weight ratio, and long-term durability in aggressive environments. Manufactured in accordance with ASTM B348 and ASTM B381 standards, these bolts are widely used in marine systems, chemical processing plants, and aerospace structures where conventional steel fasteners fail due to corrosion or weight constraints.
Titanium Grade 2 offers an optimal balance between ductility and strength, making it suitable for both static and moderately dynamic load applications. These bolts perform reliably in chloride-rich environments, acidic media, and elevated temperatures up to approximately 400°C. KK Fasteners supplies Titanium Gr 2 Bolts to global clients with full material traceability, ensuring compliance with international engineering and procurement standards.
| Parameter | Specification |
|---|---|
| Material | Titanium Grade 2 (Commercially Pure Titanium) |
| Standards | ASTM B348, ASTM B381, ASTM F468 |
| Size Range | M3 to M64 / 1/8" to 2" |
| Thread Type | Metric (ISO), UNC, UNF |
| Forms Available | Hex Bolts, Socket Head, Stud Bolts, Custom Fasteners |
| Surface Finish | Pickled, Polished, Passivated |
| Tensile Strength | Minimum 345 MPa |
| Yield Strength | Minimum 275 MPa |
| Hardness | Approx. 160 HV |
| Temperature Resistance | Up to 400°C (continuous service) |
| 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 (D) |
BODY DIAMETER |
BOLT HEAD THICKNESS |
ACROSS THE FLATS |
ACROSS CORNERS |
||||
|---|---|---|---|---|---|---|---|---|
D (MAX) |
D (MIN) |
H (MAX) |
H (MIN) |
F (MAX) |
F (MIN) |
C (MAX) |
C (MIN) |
|
m10 |
10.00 |
9.78 |
6.63 |
6.17 |
17.00 |
15.73 |
18.48 |
17.77 |
m12 |
12.00 |
11.73 |
7.76 |
4.24 |
19.00 |
17.73 |
20.78 |
20.03 |
m14 |
14.00 |
13.73 |
9.09 |
8.51 |
22.00 |
20.67 |
24.25 |
23.35 |
m16 |
16.00 |
15.73 |
10.32 |
9.68 |
24.00 |
23.67 |
27.71 |
26.75 |
m20 |
20.00 |
19.67 |
12.88 |
12.12 |
30.00 |
29.16 |
34.64 |
32.95 |
m24 |
24.00 |
23.67 |
15.44 |
14.56 |
36.00 |
35.00 |
41.57 |
39.55 |
m30 |
30.00 |
29.67 |
19.48 |
17.92 |
46.00 |
45.00 |
53.12 |
50.85 |
m36 |
36.00 |
35.61 |
23.38 |
21.63 |
55.00 |
53.80 |
63.51 |
60.79 |
m42 |
42.00 |
41.38 |
26.97 |
25.03 |
65.00 |
62.90 |
75.06 |
71.71 |
m48 |
48.00 |
47.38 |
31.07 |
28.93 |
75.00 |
72.60 |
86.60 |
82.76 |
m56 |
56.00 |
55.26 |
36.2 |
33.80 |
85.00 |
82.20 |
98.15 |
93.71 |
m64 |
64.00 |
63.26 |
41.32 |
38.68 |
95.00 |
91.80 |
109.70 |
104.65 |
m72 |
72.00 |
71.26 |
46.45 |
43.55 |
105.00 |
101.40 |
121.24 |
115.60 |
m80 |
80.00 |
79.26 |
51.58 |
48.42 |
115.00 |
111.00 |
132.72 |
126.54 |
m90 |
90.00 |
89.13 |
57.74 |
54.26 |
130.00 |
125.50 |
150.11 |
143.07 |
m100 |
90.00 |
99.13 |
63.9 |
60.10 |
145.00 |
140.00 |
167.43 |
159.60 |
| MM THREADS AS PER IS 1363/67 | ||||||||||
| APPROXIMATE WEIGHT IN KGS FOR 100 NOS | ||||||||||
| LENGTH | DIAMETER | |||||||||
| M 5 | M 6 | M 8 | M 10 | M 12 | M 14 | M 16 | M 18 | M 20 | M 22 | |
| 16 mm | 0.448 | 0.743 | 1.590 | 3.211 | ||||||
| 20 mm | 0.598 | 0.812 | 1.711 | 3.411 | 4.892 | |||||
| 25 mm | 0.660 | 0.897 | 1.871 | 3.660 | 5.252 | 8.170 | ||||
| 30 mm | 0.737 | 1.010 | 2.070 | 3.912 | 5.574 | 9.690 | 10.707 | 18.657 | ||
| 35 mm | 0.804 | 1.120 | 2.271 | 4.223 | 5.974 | 10.000 | 11.416 | 16.026 | 19.608 | |
| 40 mm | 0.881 | 1.230 | 2.470 | 4.533 | 6.410 | 10.288 | 12.107 | 16.667 | 20.747 | |
| 45 mm | 0.958 | 1.340 | 2.671 | 4.840 | 6.859 | 10.504 | 12.821 | 17.241 | 21.739 | |
| 50 mm | 1.030 | 1.450 | 2.870 | 5.155 | 7.299 | 11.261 | 13.624 | 17.857 | 22.727 | 28.409 |
| 55 mm | 1.560 | 3.071 | 5.464 | 7.740 | 11.628 | 14.409 | 18.868 | 23.810 | 30.120 | |
| 60 mm | 1.670 | 3.270 | 5.774 | 8.183 | 12.255 | 15.244 | 20.000 | 25.126 | 32.051 | |
| 65 mm | 1.781 | 3.472 | 6.083 | 8.621 | 12.626 | 16.026 | 21.008 | 26.455 | 34.014 | |
| 70 mm | 1.890 | 3.671 | 6.394 | 9.058 | 12.987 | 16.835 | 22.124 | 27.778 | 35.461 | |
| 75 mm | 2.000 | 3.873 | 6.702 | 9.506 | 13.228 | 17.606 | 23.256 | 29.070 | 39.063 | |
| 80 mm | 2.111 | 4.072 | 7.013 | 10.000 | 13.889 | 18.248 | 24.510 | 30.303 | 40.000 | |
| 90 mm | 4.472 | 7.634 | 10.917 | 14.925 | 19.841 | 26.042 | 33.113 | 41.667 | ||
| 100 mm | 4.873 | 8.251 | 11.820 | 16.340 | 21.459 | 27.778 | 35.714 | 46.296 | ||
| 110 mm | 8.881 | 12.723 | 17.730 | 23.041 | 31.250 | 38.168 | 47.170 | |||
| 120 mm | 9.506 | 13.624 | 18.797 | 24.631 | 32.895 | 40.984 | 50.000 | |||
| 130 mm | 10.101 | 14.535 | 20.000 | 26.316 | 34.722 | 43.478 | 52.632 | |||
| 140 mm | 10.707 | 15.432 | 20.833 | 27.933 | 35.461 | 46.296 | 55.556 | |||
| 150 mm | 11.312 | 16.340 | 22.222 | 29.412 | 37.594 | 48.544 | 58.824 | |||
| 160 mm | 11.905 | 17.241 | 24.272 | 31.056 | 40.984 | 50.505 | 61.728 | |||
| 170 mm | 12.500 | 18.116 | 32.680 | 53.191 | 64.935 | |||||
| 180 mm | 13.123 | 19.011 | 26.882 | 34.247 | 55.556 | 67.568 | ||||
| 190 mm | 13.736 | 19.920 | 35.971 | 58.140 | 70.423 | |||||
| 200 mm | 14.327 | 20.833 | 29.586 | 37.594 | 49.020 | 60.976 | 73.529 | |||
| 220 mm | 15.528 | 22.624 | 40.650 | 65.789 | 79.365 | |||||
| 240 mm | 16.722 | 24.510 | 43.860 | 71.429 | 84.746 | |||||
| 250 mm | 17.301 | 25.381 | 45.455 | 74.627 | 87.719 | |||||
| 260 mm | 17.921 | 26.316 | 47.170 | 76.923 | 90.909 | |||||
| 280 mm | 19.157 | 28.090 | 50.505 | 81.967 | 98.039 | |||||
| 300 mm | 20.325 | 29.940 | 53.763 | 87.719 | 104.167 | |||||
| 320 mm | 31.646 | 56.818 | 92.593 | |||||||
| 340 mm | 33.557 | 60.241 | 98.039 | |||||||
| 360 mm | 35.211 | 63.291 | 104.167 | |||||||
| 380 mm | 37.037 | 66.667 | 108.696 | |||||||
| 400 mm | 39.063 | 69.444 | 113.636 | |||||||
Titanium Grade 2 bolts are used in environments where corrosion resistance, weight reduction, and reliability are critical.
Titanium Gr 2 Bolts are typically produced using precision forging followed by CNC machining to achieve tight dimensional tolerances. Threads are rolled or machined depending on application requirements, ensuring optimal strength and fatigue resistance.
Quality control includes dimensional inspection, tensile testing, hardness verification, and surface finish evaluation. Each batch undergoes material traceability checks aligned with ASTM standards. KK Fasteners follows structured quality protocols supported by ISO 9001-certified processes, ensuring every shipment meets international engineering specifications and compliance requirements.
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Titanium Grade 2 bolts are commercially pure titanium fasteners known for excellent corrosion resistance, moderate strength, and lightweight properties. They are widely used in marine, chemical, aerospace, and power generation industries where exposure to harsh environments requires long-term reliability and durability.
Titanium Grade 2 bolts are not stronger in absolute tensile strength compared to many stainless steels, but they offer a significantly higher strength-to-weight ratio. This means they deliver excellent performance while being nearly 45% lighter, making them ideal for weight-sensitive and corrosion-prone applications.
These bolts are commonly manufactured in accordance with ASTM B348, ASTM B381, and ASTM F468 standards. Depending on application needs, threading and dimensional tolerances may also follow ISO, DIN, or ANSI specifications to ensure global compatibility and engineering compliance.
Selection depends on operating environment, load conditions, and exposure to corrosive elements. Grade 2 is best suited for general corrosion resistance and moderate strength requirements. For higher mechanical loads, alloyed titanium grades may be more appropriate.
A dependable supplier should provide ASTM-certified materials, full traceability, ISO 9001 quality systems, and proven export experience. Consistency in dimensional accuracy, testing documentation, and industry references are key indicators of reliability. KK Fasteners supports global buyers with verified quality control and international supply capability.
Titanium Grade 2 bolts offer a proven solution for corrosion-critical and weight-sensitive applications across global industries. With controlled manufacturing processes and consistent quality verification, KK Fasteners supports procurement teams with reliable supply and technical clarity. For project-specific requirements or bulk inquiries, request a quote or connect with the engineering team to review detailed specifications.
