A193 B7 STUDS

Parmar Steel manufactures A193 B7 studs, renowned for their robustness and reliability in industrial applications. These studs are crafted from high-quality alloy steel, ensuring exceptional strength and durability, making them ideal for high-pressure and high-temperature environments. Parmar Steel A193 B7 studs are precision-engineered to meet Astm Standard Fasteners, guaranteeing consistent performance under demanding conditions. They are widely used in oil and gas, petrochemical, and construction industries for their ability to withstand extreme stress and corrosion. With a variety of sizes and configurations available, Parmar Steel caters to diverse project requirements, providing solutions that ensure safety, efficiency, and long-term operational integrity.

StandardDIN, ASTM, BS and all International Standards
SizeM3 - M56 | 3/6" to 2" | Custom Sizes
TypeStuds, Threaded Studs.

Standards Designation
Thread Requirements of Stud Bolts UNC & UNF, ASME B1.1, Class 2A (Fastenal will inspect and accept parts with a 1A no-go gauge)
Manufacturing Process Cold Heading, Wire Drawing, Heat Treatment, Insert tapping, Inspection, Surface Plating, Packing
Delivery time custom product will according to special requirement, Regular product is about 7-15 days
Coatings PTFE
Head Square, Hex, Hex flange, Round, T-head, Flat & Triangular etc
Neck type Square, Hex, Oval, Triangular & Knurled etc
Dimensions ASME B18.3, B18.2.1
Melt Origin South America/East Europe/Japan/Korea
Product Origin Made in India
Threads Configuration B1.13M 6h Metric Coarse Threads and ASME B1.1 2A/3A Inch Unified Threads
Certification Dual Certified As per ASME & ASTM Codes
Additional Certifications Merkblatt AD 2000 W2 Certified, PED 97/23/EC Certified
Mandatory Requirements Free from Radioactive & Mercury Contamination
Additional Requirements NACE MR0175 / MR0103 /ISO 15156 Compliance

304 SS STUD BOLTS DIMENSION CHART

STUD BOLT LENGTH (in inches) 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
2.1/2 10.8
2.3/4 11.6 19.8
3.1/4 12.4 21 32.4
3.1/2 13.2 22.2 34.3 50
4 14 23.4 36.2 52.6 71.8
4.1/2 14.8 24.6 38.1 55.2 75.2 102
4.3/4 15.6 25.8 40 57.8 78.6 106 137
5 16.4 27 41.9 60.4 82 111 142 179
5.1/2 17.2 28.2 43.8 63 85.4 115 147 186 234
6 18 29.4 45.7 65.6 88.8 119 153 193 242 289
6.1/4 18.8 30.6 47.6 68.2 92.2 123 158 200 250 298 263
6.1/2 19.6 32.3 49.5 70.8 95.6 128 164 206 258 308 374 437
7 20.4 33.5 50.8 73.4 99 132 169 213 266 317 385 449
7.1/2 21.2 34.8 52.7 75.5 103 136 174 220 275 326 396 462
8 22 36.1 54.5 78 106 141 180 226 283 336 407 475
8.1/4 37.3 56.3 80.5 108 145 185 233 291 345 418 488
8.3/4 38.6 58.1 83.1 112 149 191 240 299 354 429 500
9 39.8 60 85.6 115 153 196 246 307 364 440 513
9.1/2 41.1 61.8 88.2 118 158 201 253 316 373 451 526
10 63.7 90.7 122 162 206 260 324 382 463 538
10/1.4 93.3 125 166 212 267 332 391 474 551
1.0.1/2 128 171 217 273 340 401 485 564
11 132 175 223 279 345 410 496 576
11.1/2 135 179 228 285 350 419 507 589
12 138 184 233 292 358 429 518 602

STUD BOLT LENGTH (in mm) M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39
60 5,6 8,1 12 15,6
70 6,1 8,9 13 16,9 23,7
80 6,6 9,6 14 18,2 25,4 32,5
90 7,1 10,3 15 19,6 27,1 34,5 45,5
100 7,6 11 16 21 28,8 36,7 47,2 54,2
110 8,1 11,7 17 22,2 30,4 38,7 48,3 58,2 80
120 8,6 12,4 18 23,6 32,1 40,7 50,9 60,2 84,7 107
130 9,1 13,2 19 24,9 33,7 42,8 53,4 63,2 88,6 111 141
140 9,6 14,2 20 26,2 35,4 44,9 55,9 66,2 92,4 116 147 185
150 10,1 14,9 20,8 27,5 36,9 46,9 58,5 69,2 96,3 121 153 192 237
160 10,6 15,6 21,8 29,1 38,6 49 61 72,2 100,1 126 159 199 245
170 16,4 22,8 30,4 40,2 51,1 63,5 75,2 104 130 165 206 253
180 23,8 31,8 41,9 52,3 66,1 78,1 108 135 171 213 261
190 33,1 43,5 54,4 68,4 81,1 112 140 176 219 269
200 34,5 45,2 56,2 71 84 116 144 182 226 278
210 35,8 46,8 58,5 73,5 88,4 120 149 188 233 286
220 37,1 48,4 60,6 76,1 91,4 124 154 194 240 294
230 38,5 50,1 62,6 78,6 94,4 127 159 201 247 302
240 39,8 51,7 64,7 81,2 97,4 130,9 164 208 253 310
250 41,1 53,4 66,8 83,7 100,4 134,8 172 214 260 319
260 55 68,8 86,3 103,4 138,6 177 220 267 327
270 56,6 70,9 88,8 106,4 142,5 182 224 274 335
280 58,3 73 91,4 109,4 146,3 187 230 281 343
290 75 93,9 112,4 150,1 192 236 291 360
300 77,1 96,5 115,4 154 196 241 298 368
320 101,6 121,3 161,7 206 253 312 380
340 127,3 169,4 215 265 326 395
360 133,3 177,1 224 276 340 411
380 184,8 234 288 353 428
400 192,5 243 299 367 444
420 252 311 381 460
440 262 322 394 477
460 271 334 408 493
480 281 345 422 509
500 290 357 436 526

SIZES OF A2-70 BOLTS/ STUD BOLTS

 Class 150 Flanges ASME B16.5 (Stud bolt sizes) Length of Stud Bolts 
NPS Outside Diameter of Flange The diameter of Bolt Circle The diameter of Bolt Holes Number of Bolts Diameter of Bolts Raised Face
0.06 in
Ring Joint
1/2 3 1/2 2 3/8 5/8 4 1/2 2 1/4
3/4 3 7/8 2 3/4 5/8 4 1/2 2 1/2
1 4 1/4 3 1/8 5/8 4 1/2 2 1/2 3
1 1/4 4 5/8 3 1/2 5/8 4 1/2 2 3/4 3 1/4
1 1/2 5 3 7/8 5/8 4 1/2 2 3/4 3 1/4
2 6 4 3/4 3/4 4 5/8 3 1/4 3 3/4
2 1/2 7 5 1/2 3/4 4 5/8 3 1/2 4
3 7 1/2 6 3/4 4 5/8 3 1/2 4
3 1/2 8 1/2 7 3/4 8 5/8 3 1/2 4
4 9 7 1/2 3/4 8 5/8 3 1/2 4
5 10 8 1/2 7/8 8 3/4 3 3/4 4 1/4
6 11 9 1/2 7/8 8 3/4 4 4 1/2
8 13 1/2 11 3/4 7/8 8 3/4 4 1/4 4 3/4
10 16 14 3/4 1 12 7/8 4 1/2 5
12 19 17 1 12 7/8 4 3/4 5 1/4
14 21 18 3/4 1 1/8 12 1 5 1/4 5 3/4
16 23 1/2 21 1/4 1 1/8 16 1 5 1/4 5 3/4
18 25 22 3/4 1 1/4 16 1 1/8 5 3/4 6 1/4
20 27 1/2 25 1 1/4 20 1 1/8 6 1/4 6 3/4
24 32 29 1/2 1 1/4 20 1 1/4 6 3/4 7 1/4

DOUBLE END THREADED STUD BOLTS TORQUE CHART

Flange
Size
B16.5 Class 150 RF/ Ring Gaskets B16.5 Class 150 FF/ Full Face Gaskets
Torque / Round (ft-lbs) Stud Bolts Tighten Sequence Torque / Round (ft-lbs) Stud Bolts Tighten Sequence
1st 2nd Final Dwg/No. Bolt Size 1st 2nd Final Dwg*/No. Bolt Size
1/2″ 10 20 30 4-bolt 1/2″ 20 40 60 4-bolt 1/2″
3/4″ 13 27 40 4-bolt 1/2″ 20 40 60 4-bolt 1/2″
1″ 15 30 50 4-bolt 1/2″ 20 40 60 4-bolt 1/2″
1-1/4″ 20 40 60 4-bolt 1/2″ 20 40 60 4-bolt 1/2″
1-1/2″ 20 40 60 4-bolt 1/2″ 20 40 60 4-bolt 1/2″
2″ 40 80 120 4-bolt 5/8″ 40 80 120 4-bolt 5/8″
2-1/2″ 40 80 120 4-bolt 5/8″ 40 80 120 4-bolt 5/8″
3″ 40 80 120 4-bolt 5/8″ 40 80 120 4-bolt 5/8″
3-1/2″ 40 80 120 8-bolt 5/8″ 40 80 120 8-bolt 5/8″
4″ 40 80 120 8-bolt 5/8″ 40 80 120 8-bolt 5/8″
5″ 60 120 200 8-bolt 3/4″ 60 120 200 8-bolt 3/4″
6″ 60 120 200 8-bolt 3/4″ 60 120 200 8-bolt 3/4″
8″ 60 120 200 8-bolt 3/4″ 60 120 200 8-bolt 3/4″
10″ 95 190 320 12-bolt 7/8″ 95 190 320 12-bolt 7/8″
12″ 95 190 320 12-bolt 7/8″ 95 190 320 12-bolt 7/8″
14″ 147 294 490 12-bolt 1″ 147 294 490 12-bolt 1″
16″ 147 294 490 16-bolt 1″ 147 294 490 16-bolt 1″
18″ 213 426 710 16-bolt 1-1/8″ 213 426 710 16-bolt 1-1/8″
20″ 213 426 710 20-bolt 1-1/8″ 213 426 710 20-bolt 1-1/8″
24″ 300 600 1,000 20-bolt 1-1/4″ 300 600 1,000 20-bolt 1-1/4″

High Tensile Studs Material & Grades

Stainless Steel Studs :

AISI 302, 304, 304L,316, 316L, 310, 317, 317L, 321, 347, 410, 420,904L etc.

Duplex & Super Duplex Steel Studs :

ASTM / ASME A815 UNS No. S31803, UNS No. S 32205, UNS No. S 31254, UNS No. S 31550, UNS No. S 32750, and UNS No. S 32760

Carbon Steel Studs :

ASTM A307, A193

Alloy Steel Studs :

ASTM / ASME A/SA 193 / 194 B 6, B 7/ B 7M, B 16, 2, 2HM, 2H, GR 6, B 7, B 7M

Nickel Alloy Studs :

ASTM / ASME SB 160 / 164 / 425 / 166 / 446 / 574 / 472 UNS 2200 (NICKEL 200) / UNS 2201 (NICKEL 201), UNS 4400 (MONEL 400), UNS 8825 (INCONEL 825), UNS 6600 (INCONEL 600) / UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276), UNS 8020 (ALLOY 20 / 20 CB 3)

We Shine For Premier Quality Product

The company has over two decade long record of servicing customers in India as well as all over the world. The company attaches significant emphasis on ensuring adherence to quality standards at all levels.

The basic thrust of the quality philosophy is summed up in the company's Quality Policy which serves as the bench mark of all functions executed by the company. Strict quality assurance system is being followed in all our departments and Total Quality Management is applied to streamline and all the procedures and practices in operation to achieve high standard of efficiency.

Why Choose Us - Parmar Steel

Why Choose Us

Top Product Best Price - Parmar Steel

Top Product Best Price

Global Shipping - Parmar Steel

Global Shipping

Wide Product Range - Parmar Steel

Wide Product Range

Industrial Application Of
Our Product

Ratings & Reviews

Parmar Steel

Profile - Parmar Steel

CONTACT PERSON

Naresh Mali | Sales & Marketing Manager

Address- Parmar Steel

CORPORATE ADDRESS

Parmar Steel
48/50, Hingwala Building, Office No. 8, 3rd Floor, C. P. Tank Road, Mumbai - 400004, Maharashtra, India
Get Direction

Contact Us