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  • Imperial (Inch)/ Metric
  • Common Bolt
  • Plastic Bag, Carton,Wood Pallet
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ASTM A193 B8 Hex Bolts

ASTM A193 B8 Hex Bolts

A193 gr 8 Heavy Hex Bolts

A193 gr 8 Heavy Hex Bolts

A193 B8 Stud Bolts

A193 B8 Stud Bolts

Manufacturer of SA193 Grade B8 Stud Bolts in India, Use in High Tensile

ASTM A193 B8 Bolts Specification    

Table of Content

ASTM A193 B8 Bolts Specification

ASTM A193 B8 Bolts Manufacturer in India offers a wide Range of Dimensions

sizes

ASTM A193 B8 Hex Bolts Sizes

  • Metric : M1.2 – M48
  • Imperial :  1/4" to 4"
Length

A193 gr 8 Heavy Hex Bolts Length

  • 3 mm to 200 mm
  • Custom
 
Class

ASTM A 193 GR B8 Bolt Class

  • Class 1
  • Class 2
  • Class 2B
    •  
Head Types

A193 B8 Stud Bolts Head Types

  • Flat
  • Hex washer head
  • Slotted hex washer
  • Socket cap head
 
Manufacturing Method

SA 193 B8 Anchor Bolts Manufacturing Method

  • CNC machined
  • Cold Forged
  • Hot Forged
Packaging

A193 Gr B8 Eye Bolts Packaging

  • Wooden Boxes
  • custom
  • Crates
    •  
 
Surface Finish

ASTM B8 Socket Head Cap Screws Surface Finish

  • Green Finish
  • Oil
  • Clear Zinc Plated
  • PTFE / Teflon
  • Nickel Plated
  • Zinc Nickel
Coating

ASTM A193 Grade B8 Countersunk Screws Coating

  • Zinc Coated
  • Phosphate Coated
  • Cadmium Coated
  • Hot Dipped Galvanizing
  • PTFE Coated
  • Xylon Coated
 
Certification

ASTM A 193 GR B8 J Bolts Certification

  • Raw Materials Certificate
  • Heat Treatment Charts
  • Fumigation Certificates
  • MTC EN 10204 3.1B/ 3.1 / 3.2
  • Third Party Inspection Report
  • HS Code Commercial Invoice
  • DFARS compliant
Inspection Methods

SA 193 Gr B8 Square Head Bolts Inspection Methods

  • Tensile test
  • Charpy V-notch test
  • IGC Test
  • Microstructure Analysis
  • Rockwell / Brinell Hardness test
  • Hardness Test
  • Impact testing
   
Application

SA193 B8 Hex Bolts Application

  • Gas Processing
  • Aircraft Exhaust Manifolds
  • Petrochemicals
  • Heat Exchangers
  • Power Generation
  • Pharmaceutical Equipment
Delivered Areas

B8 Stainless Steel Heavy Hex Bolts Delivered Areas

  • United States
  • UAE
  • Italy
  • South Africa
  • Oman
 
Services

A193 GRB8 Stud Bolts Services

  • Head Shank Drilling
  • Mil-Spec Packaging
  • Thread-Locking
  • Plating
  • JIT
  • Bagging
  • Head Painting
  • Venting
Marking

ASTM A193 gr B8 Anchor Bolts Marking

  • Nominal Size
  • Method of Manufacturing
  • Heat Number
  • Material Grade
  • Manufacturer’s Name or Logo
  • Schedule or Wall Thickness
 
Bolt End

ASTM A193 gr 8 Eye Bolts End

  • 45 degree angle cut
  • Chamfer end
  • Milled end
  • Half point
  • Chisel point
  • Semi-cone point
  • Sheared end
  • Gimlet point
    •  
Thread Types

A193 B8 SS 304 Socket Head Cap Screws Thread Types

  • UNEF
  • UNJ
  • BSF
  • Fine Thread
  • 8-Thread Series
  • 12-thread series
  • Metric coarse
 

ASME SA193 Grade B8 Hex Bolts Used in High Temperature Applications, Check Size Specification

ASTM A193 B8 Bolts Applications    
Size Chart of A193 B8 Heavy Hex Bolt
Dia. M18 M16 M56 M64 M20 M12 M72 M80 M10 M14 M36 M42 M33 M24 M22 M27 M30 M48 M60 M68 M76 M39 M45 M52
Nut Size 27 24 85 95 30 19 105 115 17 22 55 65 50 36 32 41 46 75 90 100 110 60 70 80
Dia. in inch 0.7087 0.6299 2.2047 2.5197 0.7874 0.4724 2.8346 3.1496 0.3937 0.5512 1.4173 1.6535 1.2992 0.9449 0.8661 1.063 1.1811 1.8898 2.3622 2.6772 2.9921 1.5354 1.7717 2.0472
Dia. in mm 18 16 56 64 20 12 72 80 10 14 36 42 33 24 22 27 30 48 60 68 76 39 45 52
Dimensions of ASME SA193 Grade b8 Hex Bolts
Dimensions of ASME SA193 Grade b8 Hex Bolts    
NS (D) Across The Flats Thickness of Head Body Diameter Across the Corners
Force (minimum) Force (maximum) Head (minimum) Head(maximum) Dia (minimum) Dia(maximum) Corner (minimum) Corner (maximum)
m20 29.16 30.00 12.12 12.88 19.67 20.00 32.95 34.64
m16 23.67 24.00 9.68 10.32 15.73 16.00 26.75 27.71
m14 20.67 22.00 8.51 9.09 13.73 14.00 23.35 24.25
m24 35.00 36.00 14.56 15.44 23.67 24.00 39.55 41.57
m12 17.73 19.00 4.24 7.76 11.73 12.00 20.03 20.78
m90 125.50 130.00 54.26 57.74 89.13 90.00 143.07 150.11
m10 15.73 17.00 6.17 6.63 9.78 10.00 17.77 18.48
m36 53.80 55.00 21.63 23.38 35.61 36.00 60.79 63.51
m56 82.20 85.00 33.80 36.2 55.26 56.00 93.71 98.15
m48 72.60 75.00 28.93 31.07 47.38 48.00 82.76 86.60
m72 101.40 105.00 43.55 46.45 71.26 72.00 115.60 121.24
m64 91.80 95.00 38.68 41.32 63.26 64.00 104.65 109.70
m30 45.00 46.00 17.92 19.48 29.67 30.00 50.85 53.12
m42 62.90 65.00 25.03 26.97 41.38 42.00 71.71 75.06
m80 111.00 115.00 48.42 51.58 79.26 80.00 126.54 132.72
m100 140.00 145.00 60.10 63.9 99.13 90.00 159.60 167.43
ASTM A193 B8 Bolt Torque Chart
TORQUE NEWTON-METER
Bolt
Dia. 		Final
Torque 100% 		Initial
Torque 30% 		Torque 70%
1¼ 808 243 565
1½ 1113 334 778
2¾ 4454 1337 3118
19/16 759 228 531
1/2 71 22 49
9/16 102 31 72
1 483 145 338
1â…› 575 172 403
1⅜ 843 252 590
3/4 249 75 175
1â…ž 1348 404 944
2¼ 2389 717 1673
2 1653 496 1157
1¾ 1086 325 761
1â… 862 259 603
7/8 321 96 225
5/8 141 42 99
2½ 3311 994 2317
3 5826 1748 4078
TORQUE FOOT-POUND FORCE -LBS
Bolt
Dia. 		Initial
Torque 30% 		Torque 70% Final
Torque 100%
9/16 23 53 75
3/4 55 129 184
1 107 249 356
1â…› 127 297 424
7/8 71 166 237
1/2 16 36 52
1⅜ 186 435 622
1â…ž 298 696 994
2¾ 986 2300 3285
1¼ 179 417 596
5/8 31 73 104
1â… 191 445 636
19/16 168 392 560
3 1289 3008 4297
2 366 853 1219
1½ 246 574 821
2½ 733 1709 2442
1¾ 240 561 801
2¼ 529 1234 1762
SA 193 B8 Stud Bolts Dimensions Chart
SA 193 B8 Stud Bolts Dimensions Chart    
Dia.
Plain
UNC 8UN
1/2 19568 -
5/8 19569 -
11/8 19573 13979
3/4 19570
7/8 19571 -
1 19572 -
11/2 19657 13982
13/4 19658 13983
11/4 19574 13980
13/8 19656 13981
2 19659 13984
Most Common Types of ASTM A193 B8 Bolts

ASTM A193 B8 Bolts Supplier in India offers the most common types with high strength and corrosion resistance.

SA 193 B8 Anchor Bolts

SA 193 B8 Anchor Bolts

A193 Gr B8 Eye Bolts

A193 Gr B8 Eye Bolts

ASTM B8 Socket Head Cap Screws

ASTM B8 Socket Head Cap Screws

ASTM A193 Grade B8 Countersunk Screws

ASTM A193 Grade B8 Countersunk Screws

ASTM A 193 GR B8 J Bolts

ASTM A 193 GR B8 J Bolts

SA 193 Gr B8 Square Head Bolts

SA 193 Gr B8 Square Head Bolts

Check Grade B8 Stainless Steel Square Bolts Dimensions Schedule

Dimension of Grade B8 Square Bolts    
Size Of Bolt C (min.) D A (max.) B E F
Length Of Thread
for Bolt Length
max. min. 6 Inch and
shorter 		over 6 Inch
1-1/8inch 2.239 3/4 1.149 1-11/16 0.09 0.03 2.500 2.750
1-1/4inch 2.489 27/32 1.277 1-7/8 0.09 0.03 2.750 3.000
1/2inch 0.995 21/64 0.515 3/4 0.03 0.01 1.250 1.500
1-1/2inch 2.986 1 1.531 2-1/4 0.09 0.03 3.250 3.500
5/8inch 1.244 27/64 0.642 15/16 0.06 0.02 1.500 1.750
3/4inch 1.494 1/2 0.768 1-1/8 0.06 0.02 1.750 2.000
7/8inch 1.742 19/32 0.895 1-5/16 0.06 0.02 2.000 2.250
5/16inch 0.665 13/64 0.324 1/2 0.03 0.01 0.875 1.125
3/8inch 0.747 1/4 0.388 9/16 0.03 0.01 1.000 1.250
1/4inch 0.498 11/64 0.260 3/8 0.03 0.01 0.750 1.000
7/16inch 0.828 19/64 0.452 5/8 0.03 0.01 1.125 1.375
1inch 1.991 21/32 1.022 1-1/2 0.09 0.03 2.250 2.500
1-3/8inch 2.738 29/32 1.404 2-1/16 0.09 0.03 3.000 3.250
Dimensions chart of ASTM A193 B8 Heavy Hex Bolt
Dimensions chart of ASTM A193 B8 Heavy Hex Bolt
Dia. (D) Body Dia. (D) Head Height (H) Across the Flats (F) Across the Corners © Thread Lengths (T)
5/8 0.642 0.605 0.444 0.378 1.062 1.031 1.227 1.175 1.5 1.75
3/4 0.768 0.729 0.524 0.455 1.25 1.212 1.443 1.383 1.75 2
7/8 0.895 0.852 0.604 0.531 1.438 1.394 1.66 1.589 2 2.25
1 1.022 0.976 0.7 0.591 1.625 1.575 1.876 1.796 2.25 2.5
MIN MIN MIN MIN < 6†> 6â€
3 3.081 2.961 2.06 1.815 4.625 4.475 5.34 5.102 6.25 6.5
1/2 0.515 0.482 0.364 0.302 0.875 0.85 1.01 0.969 1.25 1.5
1 1/8 1.149 1.098 0.78 0.658 1.812 1.756 2.093 2.002 2.5 2.75
1 1/2 1.531 1.47 1.036 0.902 2.375 2.3 2.742 2.622 3.25 3.5
1 3/4 1.785 1.716 1.196 1.054 2.75 2.662 3.175 3.035 3.75 4
2 2.039 1.964 1.388 1.175 3.125 3.025 3.608 3.449 4.25 4.5
2 1/4 2.305 2.214 1.548 1.327 3.5 3.388 4.041 3.862 4.75 5
1 1/4 1.277 1.223 0.876 0.749 2 1.938 2.309 2.209 2.75 3
1 3/8 1.404 1.345 0.94 0.81 2.188 2.119 2.526 2.416 3 3.25
2 1/2 2.559 2.461 1.708 1.479 3.875 3.75 4.474 4.275 5.25 5.5
2 3/4 2.827 2.711 1.869 1.632 4.25 4.112 4.907 4.688 5.75 6
 
View ASME SA193 B8 Class 1 Heavy Hex Bolt Weight Chart, Check Heat Treatment
Dia. M20 M22 M30 M36 M24 M27 M12 M16
Length
110 347 435 893 1376 538 710 215
115 359 450 921 1415 556 732 223
30 49.1
35 53.6
50 200 257 66.6 121
55 212 272 71.0 129
60 225 286 362 75.4 137
65 237 301 380 79.9 145
170 1226 1855 751 979
175 1254 1895 769 1002
180 1281 1935 787 1024
70 249 316 398 532 84.3 153
195 1365 2054 840 1092
200 1392 2094 1114
75 262 331 701 415 554 88.8 160
80 274 346 728 433 576 93.2 168
185 1309 1974 804 1047
190 1337 2014 822 1069
40 58.0 105
45 188 62.1 113
85 286 361 756 1184 451 599 97.6 176
90 298 375 784 1224 467 621 102 184
95 310 390 812 1264 485 644 107 192
125 384 479 976 1495 591 777 239
130 396 494 1004 1535 609 800 247
135 409 509 1032 1575 627 822
140 421 524 1059 1615 645 845
145 433 539 1087 1655 662 867
150 446 554 1115 1695 680 890
100 322 405 838 1A4-80 503 665 199
105 335 420 865 1336 520 688 207
120 372 465 949 1455 574 755 231
155 458 569 1143 1735 698 912
160 584 1170 1775 716 935
165 599 1198 1815 733 957
Heat Treatment of B8 screws
Class Heat Treatment Procedure
Class 1 Treatment of Carbide Solution
Standards of ASTM A193 B8 Bolts
Product ISO UNI DIN ASME
Metric Imperial
Hex Cap Screws 4017 5739 933 B18.2.3.1M B18.2.1
Heavy Hex Bolts 7412 5712 6914 B18.2.3.7M B18.2.1
Set Screws 4029 5929 916 B18.3.1M B18.3
Hex Bolts 4014 5737 931 B18.2.3.5M B18.2.1
Socket Head Cap Screws 4762 5931 912 B18.3.1M B18.3
Countersunk Screws 10642 5933 7991 B18.3.1M B18.3
Supplier of ASTM A193 B8 Class 1 Bolts in Mumbai & Grade B8 Stainless Steel Square Bolts Excellent Mechanical Properties
Grade B8 Stainless Steel Heavy Hex Bolts Equivalent Grades
Grade 304 410 431 304 L 316 316 L 310 310 S 316S31
EN European 1.4301 1.4006 1.4057 1.4306 1.4401 1.4404 1.4841 1.4845 1.4401
ASTM America ASTM A 193 Gr B8 ASTM A 320 Ge B8 ASTM A 193 Gr B8M ASTM A 320 Ge B8M ASTM A 479 ASTM A 193 Gr B8M
UNS North America S30400 S41000 S43100 S30403 S31600 S31603 S31000 S31008 S31600
BS British BS 970 BS 970 BS 970 BS 970 BS 970 BS 970 BS 970 BS 970 BS 970
DIN German X 5CrNi1810 X 10Cr13 X 20CrNi172 X 2CrNi1911 X 5 CrNiMo 17 13 2 X 2 CrNiMo 17 13 2 X 12 CrNi 25 21 X 12 CrNi 25 21 X 5 CrNiMo 17 12 2
B8 Stainless Steel Heavy Hex Bolts Chemical Composition
0.08

Carbon

2.0

Manganese

1.0

Silicon

0.045

Phosphorus


20.0

Chromium

0.030

Sulfur

11.0

Nickel

-

Molybdenum

Recommended hardware for A193 gr. b8 fasteners
Bolt Grade Washers Nuts
B8 Class 1 SS304 A194 Grade 8
Stainless Steel Grade B8 Fasteners DIN and ISO Designations
DIN No. 933 125A 911 7991 6921 6797J 6912 ISO 7380 916 439B 912 939 961 85 84 137B 94 125B 931 934 127B 315 960 966 963 980V 7985 975 6797A 985 964 965 6334 6923 ISO 7379
Description Hex Head Cap Screws Fully Threaded Flat Washer (without Chamfer) Long Arm Hex Key Hex Flat Socket Head Cap Screws Hex Flange Head Screws Internal Tooth Lock Washer Hex Low Socket Head Cap Screws Hex Button Socket Head Cap Screws Hex Socket Set Screws Machine Screws Hex Nut, Finished Hex Jam Nut Hex Socket Head Cap Screws Double End Stud Hex Head Cap Screws Fully Threaded Slotted Pan Head Machine Screws Slotted Cheese Head Machine Screws Spring Wave Washer Cotter Pin Flat Washer (with Chamfer) Hex Head Cap Screws Partially Threaded Finished Hex Nut Split Lock Washer Wing Nut Hex Head Cap Screws Partially Threaded Phillips Oval Head Machine Screws Slotted Flat Head Machine Screws Hex Steel Prevailing Torque Lock Nut Phillips Pan Head Machine Screws Threaded Rod External Tooth Lock Washer Hex Nylon Insert Lock Nut Slotted Oval Head Machine Screws Phillips Flat Head Machine Screws Rod Coupling Nut Hex Flange Nut Hex Socket Head Shoulder Screws
Stainless Steel Hex Bolts HS Code
HS Code
73181500
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