Caliper Overseas is a reliable Threaded Rods Manufacturer and Supplier in India, offering precisely manufactured rods for strength and durability. Threaded rods or stud bolts are rods that are lengthy and threaded on both ends. They come in various types, including Double-End Threaded Rods (threads on both ends), Hollow Threaded Rods (lightweight and for particular use) and Fine Threaded Rods (tighter tension and hold). These rods are used in supporting and fastening structures.
Manufactured as per DIN 975 specification, these rods are known for their tensile strength, corrosion resistance and dimensional tolerances. These rods are recognized for their tensile strength, corrosion resistivity and dimensional accuracy. They find application in numerous construction, mechanical and industrial fields. These rods have adequate load bearing capacity, simple installation and long term of service even in harsh conditions.
Contact us today for strong and effective threaded rods that meet your project requirements.

| Standard | ASTM, DIN, BS, GB, IS and all International Standard |
|---|---|
| Size | M6 to M52 & 1/4" to 2" |
| Dimensions | ASME B18.31.3, ASME B18.31.4M |
| Length | 1000mm to 3000mm & 1feet to 12 feet |
| Dimensional Standards: | DIN 975 or DIN 976, DIN 938 |
| Unified Thread Standard (UTS) | UNC, UNF, NPT, UNS, UNEF, NPTF |
| Threads Configuration | B1.13M 6h Metric Coarse Threads and ASME B1.1 2A/3A Inch Unified Threads |
| Threaded Rods Forming | Hot Forged Threaded Rods & Cold Forged Threaded Rods |
| Application | Wind Tower, Nuclear Power, Railway, Automotive Industry, Construction, Electronic Industry |
| Threaded Rods Types | Single End Threaded Rods, Double Ended Threaded Rods, Fully Threaded Rods, Tap End Threaded Rods, Half Threaded Rods, Threaded Tie Bar/Rods |
| Finish | Zinc Plated, Plain, Hot Dip Galv. & Yellow Zinc |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Nominal Size | Diameter, D | Threads Per Inch | Umax = 2 Thread Pitches = 2P | ||||
|---|---|---|---|---|---|---|---|
| UNC | UNF | 8UN | UNC Threads | UNF Threads | 8UN Threads | ||
| 1/4 | 0.2500 | 20 | 28 | - | 0.100 | 0.071 | - |
| 5/16 | 0.3125 | 18 | 24 | - | 0.111 | 0.083 | - |
| 3/8 | 0.3750 | 16 | 24 | - | 0.125 | 0.083 | - |
| 7/16 | 0.4375 | 14 | 20 | - | 0.143 | 0.100 | - |
| 1/2 | 0.5000 | 13 | 20 | - | 0.154 | 0.100 | - |
| 9/16 | 0.5625 | 12 | 18 | - | 0.167 | 0.111 | - |
| 5/8 | 0.6250 | 11 | 18 | - | 0.182 | 0.111 | - |
| 3/4 | 0.7500 | 10 | 16 | - | 0.200 | 0.125 | - |
| 7/8 | 0.8750 | 9 | 14 | - | 0.222 | 0.143 | - |
| 1 | 1.0000 | 8 | 12 | - | 0.250 | 0.167 | - |
| 1 1/8 | 1.1250 | 7 | 12 | 8 | 0.286 | 0.167 | 0.250 |
| 1 1/4 | 1.2500 | 7 | 12 | 8 | 0.286 | 0.167 | 0.250 |
| 1 3/8 | 1.3750 | 6 | 12 | 8 | 0.333 | 0.167 | 0.250 |
| 1 1/2 | 1.5000 | 6 | 12 | 8 | 0.333 | 0.167 | 0.250 |
| 1 5/8 | 1.6250 | - | - | 8 | - | - | 0.250 |
| 1 3/4 | 1.7500 | 5 | - | 8 | 0.400 | - | 0.250 |
| 1 7/8 | 1.8750 | - | - | 8 | - | - | 0.250 |
| 2 | 2.0000 | 4 1/2 | - | 8 | 0.444 | -- | 0.250 |
| 2 1/4 | 2.2500 | 4 1/2 | - | 8 | 0.444 | - | 0.250 |
| 2 1/2 | 2.5000 | 4 | - | 8 | 0.500 | - | 0.250 |
| 2 3/4 | 2.7500 | 4 | - | 8 | 0.500 | - | 0.250 |
| 3 | 3.0000 | 4 | - | 8 | 0.500 | - | 0.250 |
| 3 1/4 | 3.2500 | 4 | - | 8 | 0.500 | - | 0.250 |
| 3 1/2 | 3.5000 | 4 | - | 8 | 0.500 | - | 0.250 |
| 3 3/4 | 3.7500 | 4 | - | 8 | 0.500 | - | 0.250 |
| 4 | 4.0000 | 4 | - | 8 | 0.500 | - | 0.250 |
| Approximate weight in Kgs per metre per pc. | |||
| Size (MM) | Weight per Metre | Size (UNC) | Weight per Mtr |
| M2 | 0.0187 | ||
| M2.5 | 0.030 | ||
| M3 | 0.044 | ||
| M3.5 | 0.060 | ||
| M4 | 0.078 | ||
| M5 | 0.124 | ||
| M6 | 0.177 | ¼” | 0.194 |
| M8 | 0.319 | 5/16” | 0.323 |
| M10 | 0.500 | 3/8” | 0.469 |
| 7/16” | 0.650 | ||
| M12 | 0.725 | ½” | 0.896 |
| M14 | 0.970 | 9/16” | 1.096 |
| M16 | 1.330 | 5/8” | 1.342 |
| M18 | 1.650 | ||
| M20 | 2.080 | ¾” | 2.021 |
| M22 | 2.540 | 7/8” | 2.756 |
| M24 | 3.000 | 1” | 3.638 |
| M27 | 3.850 | 1 1/8” | 4.545 |
| M30 | 4.750 | 1 ¼” | 5.718 |
| M33 | 5.900 | 1 3/8” | 6.842 |
| M36 | 6.900 | 1 ½” | 8.281 |
| M39 | 8.200 | 1 5/8” | 9.726 |
| M42 | 9.400 | 1 ¾” | 11.231 |
| M45 | 11.000 | 1 7/8” | 13.038 |
| M48 | 12.400 | 2 | 14.741 |
| LENGTH | Diameter | ||||||||||||
| 1/2" | 5/8" | 3/4" | 7/8" | 1" | 1.1/8" | 1.1/4" | 1.3/8" | 1.1/2" | 1.5/8" | 1.3/4" | 1.7/8" | 2" | |
| 50 mm | 0.044 | 0.069 | 0.100 | 0.136 | 0.178 | 0.225 | 0.296 | 0.356 | 0.422 | 0.493 | 0.570 | 0.681 | 0.771 |
| 55 mm | 0.049 | 0.076 | 0.110 | 0.150 | 0.195 | 0.247 | 0.326 | 0.392 | 0.464 | 0.543 | 0.627 | 0.749 | 0.848 |
| 60 mm | 0.053 | 0.083 | 0.120 | 0.163 | 0.213 | 0.270 | 0.355 | 0.428 | 0.506 | 0.592 | 0.684 | 0.817 | 0.925 |
| 65 mm | 0.058 | 0.090 | 0.130 | 0.177 | 0.231 | 0.292 | 0.385 | 0.463 | 0.549 | 0.641 | 0.741 | 0.885 | 1.002 |
| 70 mm | 0.062 | 0.097 | 0.140 | 0.190 | 0.249 | 0.315 | 0.415 | 0.499 | 0.591 | 0.690 | 0.798 | 0.953 | 1.079 |
| 75 mm | 0.067 | 0.104 | 0.150 | 0.204 | 0.266 | 0.337 | 0.444 | 0.535 | 0.633 | 0.740 | 0.855 | 1.021 | 1.156 |
| 80 mm | 0.071 | 0.111 | 0.160 | 0.218 | 0.284 | 0.360 | 0.474 | 0.570 | 0.675 | 0.789 | 0.912 | 1.089 | 1.233 |
| 85 mm | 0.075 | 0.118 | 0.170 | 0.231 | 0.302 | 0.382 | 0.504 | 0.606 | 0.717 | 0.838 | 0.969 | 1.158 | 1.310 |
| 90 mm | 0.080 | 0.125 | 0.180 | 0.245 | 0.320 | 0.404 | 0.533 | 0.641 | 0.760 | 0.888 | 1.026 | 1.226 | 1.387 |
| 95 mm | 0.084 | 0.132 | 0.190 | 0.258 | 0.337 | 0.427 | 0.563 | 0.677 | 0.802 | 0.937 | 1.083 | 1.294 | 1.464 |
| 100 mm | 0.089 | 0.139 | 0.200 | 0.272 | 0.355 | 0.449 | 0.592 | 0.713 | 0.844 | 0.986 | 1.140 | 1.362 | 1.541 |
| 110 mm | 0.098 | 0.153 | 0.220 | 0.299 | 0.391 | 0.494 | 0.652 | 0.784 | 0.928 | 1.085 | 1.254 | 1.498 | 1.695 |
| 120 mm | 0.107 | 0.166 | 0.240 | 0.326 | 0.426 | 0.539 | 0.711 | 0.855 | 1.013 | 1.184 | 1.388 | 1.634 | 1.850 |
| 125 mm | 0.111 | 0.173 | 0.250 | 0.340 | 0.444 | 0.562 | 0.741 | 0.891 | 1.055 | 1.233 | 1.425 | 1.702 | 1.927 |
| 130 mm | 0.115 | 0.180 | 0.260 | 0.353 | 0.462 | 0.584 | 0.770 | 0.926 | 1.097 | 1.282 | 1.482 | 1.770 | 2.004 |
| 140 mm | 0.124 | 0.194 | 0.280 | 0.381 | 0.497 | 0.628 | 0.829 | 0.998 | 1.182 | 1.381 | 1.596 | 1.907 | 2.158 |
| 150 mm | 0.133 | 0.208 | 0.300 | 0.408 | 0.533 | 0.674 | 0.889 | 1.069 | 1.266 | 1.480 | 1.710 | 2.043 | 2.312 |
| 160 mm | 0.142 | 0.222 | 0.320 | 0.435 | 0.568 | 0.719 | 0.948 | 1.140 | 1.350 | 1.578 | 1.824 | 2.179 | 2.466 |
| 170 mm | 0.151 | 0.236 | 0.340 | 0.462 | 0.604 | 0.764 | 1.007 | 1.212 | 1.435 | 1.677 | 1.938 | 2.315 | 2.620 |
| 175 mm | 0.155 | 0.243 | 0.350 | 0.476 | 0.621 | 0.786 | 1.037 | 1.247 | 1.477 | 1.726 | 1.995 | 2.383 | 2.697 |
| 180 mm | 0.160 | 0.250 | 0.360 | 0.489 | 0.639 | 0.809 | 1.066 | 1.283 | 1.519 | 1.776 | 2.052 | 2.451 | 2.774 |
| 190 mm | 0.169 | 0.264 | 0.380 | 0.517 | 0.675 | 0.854 | 1.126 | 1.354 | 1.604 | 1.874 | 2.166 | 2.588 | 2.928 |
| 200 mm | 0.178 | 0.277 | 0.399 | 0.544 | 0.710 | 0.899 | 1.185 | 1.425 | 1.688 | 1.973 | 2.280 | 2.724 | 3.083 |
| 210 mm | 0.186 | 0.291 | 0.419 | 0.571 | 0.746 | 0.944 | 1.244 | 1.497 | 1.772 | 2.071 | 2.394 | 2.860 | 3.237 |
| 220 mm | 0.195 | 0.305 | 0.439 | 0.596 | 0.781 | 0.989 | 1.303 | 1.568 | 1.857 | 2.170 | 2.508 | 2.996 | 3.391 |
| 225 mm | 0.200 | 0.312 | 0.449 | 0.612 | 0.799 | 1.011 | 1.333 | 1.604 | 1.899 | 2.219 | 2.565 | 3.064 | 3.468 |
| 230 mm | 0.204 | 0.319 | 0.459 | 0.625 | 0.817 | 1.034 | 1.363 | 1.639 | 1.941 | 2.269 | 2.622 | 3.132 | 3.545 |
| 240 mm | 0.213 | 0.333 | 0.479 | 0.653 | 0.852 | 1.079 | 1.422 | 1.710 | 2.026 | 2.367 | 2.736 | 3.268 | 3.699 |
| 250 mm | 0.222 | 0.347 | 0.499 | 0.680 | 0.888 | 1.124 | 1.481 | 1.782 | 2.110 | 2.466 | 2.850 | 3.405 | 3.853 |
| 260 mm | 0.231 | 0.361 | 0.519 | 0.707 | 0.923 | 1.169 | 1.540 | 1.853 | 2.194 | 2.565 | 2.964 | 3.541 | 4.007 |
| 270 mm | 0.240 | 0.375 | 0.539 | 0.734 | 0.959 | 1.213 | 1.600 | 1.924 | 2.279 | 2.663 | 3.078 | 3.677 | 4.161 |
| 275 mm | 0.244 | 0.382 | 0.549 | 0.748 | 0.977 | 1.236 | 1.629 | 1.960 | 2.321 | 2.713 | 3.135 | 3.745 | 4.238 |
| 280 mm | 0.249 | 0.388 | 0.559 | 0.761 | 0.994 | 1.258 | 1.659 | 1.995 | 2.363 | 2.762 | 3.192 | 3.813 | 4.316 |
| 290 mm | 0.257 | 0.402 | 0.579 | 0.788 | 1.030 | 1.303 | 1.718 | 2.067 | 2.448 | 2.861 | 3.306 | 3.949 | 4.470 |
| 300 mm | 0.266 | 0.416 | 0.599 | 0.816 | 1.065 | 1.348 | 1.777 | 2.138 | 2.532 | 2.959 | 3.420 | 4.086 | 4.624 |
| 3/8″-16 x 1-1/2″ | 3/8″-16 x 1-1/4″ | 3/4″-10 x 3″ |
| 1/2″-13 x 3″ | 1/2″-13 x 2-1/2″ | 5/16″-18 x 1″ |
| 3/8″-16 x 1″ | 5/8″-11 x 3″ | 3/8″-16 x 3/4″ |
| 1/2″-13 x 1-1/2″ | 1/2″-13 x 2″ | 5/16″-18 x 1-1/4″ |
| 1/4″-20 x 1″ | 3/8″-16 x 2″ | 5/8″-11 x 4″ |
| 5/8″-11 x 2-1/2″ | 3/8″-16 x 2-1/2″ | 3/8″-16 x 3″ |
| 1/2″-13 x 1-1/4″ | 3/4″-10 x 2-1/2″ |
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