Manufactures & Suppliers of Pipes, Tubes, Flanges, Pipe Fitting & Fasteners

Natron Steel is one of the leading of Stainless Steel Bolts Manufacturers in India. Our SS Bolt, are crafted from high-quality raw materials to meet industry standards, ensuring durability and reliability. We offer the most comprehensive range of Stainless Steel Bolts, Available in various sizes and grades, Our Stainless Steel Bolts can also be customized in size and thickness to meet the unique requirements of our valued clients. As a top bolt manufacturer in India, we offer an extensive range of stainless steel bolts, including 201 , 304, 304L, 304H, 305, 310, 310S, 310H, 316, 316L, 316Ti,317,317L, 321, 347, 347H, 309S, 410, 446 and more, available in various grades and sizes. Our ss bolts are widely used across industries like sugar production, power generation, shipbuilding, construction, and oil and gas.

316 Stainless Steel Bolts, 304 Stainless Steel Bolts, Stainless Steel Hex Bolt, SS 304 Carriage Bolt, Stainless Steel U Bolt , Stainless Steel Eye Bolts, Stainless Steel Allen Bolts, Stainless Steel Flange Bolts Supplier in Mumbai, India.

Our stainless steel bolts are expertly designed for compatibility with square-drive tools, allowing for easy and efficient installation with the proper equipment. Depending on the required torque strength and specific application, the bolt head type can be adapted to meet varied requirements. We manufacture these bolts using premium grades of stainless steel, to ensure both high performance and longevity in demanding environments.


Stainless Steel Bolts are crafted from stainless steel to ensure they withstand corrosion from environmental factors. In addition our stainless steel bolts may also be produced depending on the specific application needs. To deliver top-quality stainless steel bolts to our customers, we utilize only the finest materials, meticulous craftsmanship, and advanced technology in the manufacturing process.


Stainless Steel Bolts Specification

Grades 304, 304L, 304H, 316, 316L, 316Ti, 316H, 321, 410, 410S, 347, 347H
Sizes From 1/4 inch to 16 inches
Metric sizes: M6 to M64
Thread Type Metric / Imperial
ASME Standards (American) ASME B18.2.1, ASME B18.3, ASME B18.6.3
DIN Standards (German) DIN 933, DIN 931, DIN 961, DIN 963
ISO Standards ISO 4014, ISO 4017, ISO 4032
Tests Performed Hardness Test, Torsion Test, Tensile Strength Test
Types of Stainless Steel Bolts

Hex Bolts
Carriage Bolts
Shoulder Bolts
Flange Bolts
Eye Bolts
Anchor Bolts
U-Bolts
J-Bolts
T-Bolts
Stud Bolts
Lag Bolts
Machine Bolts

ASTM Specification ASTM F593, ASTM A193, ASTM A320

Our ss bolts are widely used across a range of applications, including automotive industry, food processing, boilers, pressure vessels, shipbuilding, oil pipelines, petrochemical facilities, construction projects, and even in surgical instruments. We built a strong reputation as a trusted stainless steel bolts manufacturer, recognized for its reliable products in various applications. Each product we offer is crafted with precision and widely valued around the world, produced at a facility equipped with five induction furnaces in our melting workshop and a high level of automation throughout the manufacturing process.


We proudly serve over 200 customers worldwide, establishing a strong presence in both international and domestic markets with our exceptional quality and on-time deliveries. Specializing in purpose-built of stainless steel bolts, we are dedicated to meeting the unique needs of our clients. In a competitive industry, we are recognized as a trusted supplier for consistently providing the right quality products, precisely when and where they’re needed. Our ss bolts are available across various industrial sectors in a wide range of sizes and models, designed to meet the exact specifications of our clients.

Stainless Steel Bolts Weight Chart

Length Diameter
12" 58" 34" 78" 1" 118" 114" 138 112
1 16.5 29.4 47.0 - - - - - -
114 17.8 31.3 49.6 74.4 104 - - - -
112 19.2 33.1 52.2 78 109 148 197 - -
134 20.5 35.3 55.3 81.9 114 154 205 261 333
2 21.9 37.4 58.4 86.1 119 160 212 270 344
214 23.3 39.8 61.6 90.3 124 167 220 279 355
212 24.7 41.7 64.7 94.6 130 174 229 290 366
234 26.1 43.9 67.8 98.8 135 181 237 300 379
3 27.4 46.1 70.9 103 141 188 246 310 391
314 28.8 48.2 74 107 146 195 255 321 403
312 30.2 50.4 77.1 111 151 202 263 332 416
334 31.6 52.5 80.2 116 157 209 272 342 428
4 33 54.7 83.3 120 162 216 280 353 441
414 34.3 56.9 86.4 124 168 223 289 363 453
412 35.7 59 89.5 128 173 230 298 374 465
434 37.1 61.2 92.7 133 179 237 306 384 478
5 38.5 63.3 95.8 137 184 244 315 395 490
514 39.9 65.5 98.9 141 190 251 324 405 503
512 41.2 67.7 102 146 196 258 332 416 515
534 42.6 69.8 105 150 201 265 341 426 527
6 44 71.9 108 154 207 272 349 437 540
614 - 74.1 111 158 212 279 358 447 552
612 - 76.3 114 163 218 286 367 458 565
634 - 78.5 118 167 223 293 375 468 577
7 - 80.6 121 171 229 300 384 479 589
714 - 82.8 124 175 234 307 392 489 602
712 - 84.9 127 179 240 314 401 500 614
734 - 87.1 130 183 246 321 410 510 626
8 - 89.2 133 187 251 328 418 521 639
814 - - - 192 257 335 427 531 651
812 - - - 196 262 342 435 542 664
834 - - - - - - 444 552 676
9 - - - - - - 453 563 689
Per inch
Adder
5.5 8.6 12.4 16.9 22.1 28 34.4 42.5 49.7
F436 Round Washers 2.1 3.6 4.8 7 9.4 11.3 13.8 16.8 20

SS Bolts Chemical Composition

Chemical Composition
Type C Mn P S Si Cr Ni Mo
304* 0.08 2.00 0.045 0.030 1.00 18.00/20.00 8.00/10.50
304L* 0.03 2.00 0.045 0.030 1.00 18.00/20.00 8.00/12.00
316* 0.08 2.00 0.045 0.030 1.00 16.00/18.00 10.00/14.00 2.00/3.00
316L* 0.03 2.00 0.045 0.030 1.00 16.00/18.00 10.00/14.00 2.00/3.00
321 0.08 2.00 0.040 0.030 1.00 17.00/19.00 9.00/12.00 0.75/0.75

Stainless Steel Bolt Dimensions Chart Table

Bolt Size A (max) B C (min) D E F
Thread Length
for Bolt Length
max min 6" and
shorter
over 6"
1/4" 0.260 7/16 0.484 11/64 0.03 0.01 0.750 1.000
5/16" 0.324 1/2 0.552 7/32 0.03 0.01 0.875 1.125
3/8" 0.388 9/16 0.620 1/4 0.03 0.01 1.000 1.250
7/16" 0.452 5/8 0.687 19/64 0.03 0.01 1.125 1.375
1/2" 0.515 3/4 0.826 11/32 0.03 0.01 1.250 1.500
5/8" 0.642 15/16 1.033 27/64 0.06 0.02 1.500 1.750
3/4" 0.768 1-1/8 1.240 1/2 0.06 0.02 1.750 2.000
7/8" 0.895 1-5/16 1.447 37/64 0.06 0.02 2.000 2.250
1" 1.022 1-1/2 1.653 43/64 0.09 0.03 2.250 2.500
1-1/8" 1.149 1-11/16 1.859 3/4 0.09 0.03 2.500 2.750
1-1/4" 1.277 1-7/8 2.066 27/32 0.09 0.03 2.750 3.000
1-3/8" 1.404 2-1/16 2.273 29/32 0.09 0.03 3.000 3.250
1-1/2" 1.531 2-1/4 2.480 1 0.09 0.03 3.250 3.500
1-3/4" 1.785 2-5/8 2.893 1-5/32 0.12 0.04 3.750 4.000
2" 2.039 3 3.306 1-11/32 0.12 0.04 4.250 4.500
2-1/4" 2.305 3-3/8 3.719 1-1/2 0.19 0.06 4.750 5.000
2-1/2" 2.559 3-3/4 4.133 1-21/32 0.19 0.06 5.250 5.500
2-3/4" 2.837 4-1/8 4.546 1-13/16 0.19 0.06 5.750 6.000
3" 3.081 4-1/2 4.959 2 0.19 0.06 6.250 6.500
3-1/4" 3.335 4-7/8 5.372 2-3/16 0.19 0.06 6.750 7.000
3-1/2" 3.589 5-1/4 5.786 2-5/16 0.19 0.06 7.250 7.500
3-3/4" 3.858 5-5/8 6.198 2-1/2 0.19 0.06 7.750 8.000
4" 4.111 6 6.612 2-11/16 0.19 0.06 8.250 8.500