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SA 193 Gr B7 Stud & ASTM A193 grade B7 threaded rod manufacturer in India

What is ASTM A193 Grade B7 Bolts?

Bolts and nuts are used in a host of applications in almost all industrial applications. There are different standards and specifications for the bolts and nuts to specify their properties and attributes. The ASTM A193 Grade B7 Bolts are made up of a chromium molybdenum material that has high tensile strength and good elongation properties. The ASTM A193 gr b7 bolts can come in a B7M specification as well.

A193 grade b7 stud bolts tensile strength, hardness and temperature range

This is useful to select the bolts for different high pressure and high temperature applications with different strength levels needed. The ASTM A193 grade b7 stud bolts and other types have minimum tensile strength up to 125ksi. The smaller diameter bolts have the highest strength values. The B7M grades have lower tensile strength up to 100ksi. The ASTM A193 grade b7 anchor bolts are used to hold a component anchored onto another surface. They can range up to 105ksi in minimum yield strength. There are different types of bolts and nuts to suit for different types of applications such as the ASTM A193 gr b7 stud bolt. The stud bolts are essentially threaded rods. There are also different varieties of the stud bolt types. The B7 stud bolts have high hardness with 321HBW max while the B7M variation has less hardness of 235HBW max.

Difference between A193 gr B7 and B7m?

There are slight mechanical differences to the two grades of bolts. Hardness testing requirements are also different for both grades. B7M Yield is about 20% less compared to B7, the B7 Bolts Torque will higher from Grade B7M.

 

B7

B7M

Tensile strength

125

100

Yield strength

105

80

HBW max

321

235

The two grades have slight differences in the chemical composition which makes them different in the mechanical properties.

ASTM A193 grade B7 Threaded Rod

The ASTM A193 grade b7 threaded rod is used in applications where both components have threads and the fitting is by means of nuts. So there is no need for a head on the bolt. Please feel free to contact us for more information on the different types of the bolts and nuts with prices and other information.

ASTM A193 Grade B7 Bolts

ASTM A193 Grade B7 Bolts

SA 193 B7 Threaded Rod and Studs

SA 193 B7 Threaded Rod and Studs

ASTM A193 Gr B7 Hex Bolt

ASTM A193 Gr B7 Hex Bolt

SA 193 Gr B7 Stud Bolt

SA 193 Gr B7 Stud Bolt

ASME SA193 Grade B7 Nuts

ASME SA193 Grade B7 Nuts

SA 193 Grade B7 Fasteners

SA 193 Grade B7 Fasteners

Check A193 B7 Hex Bolts & ASME SA193 Gr B7 Stud Bolts Price List & size range

ASTM A193 Grade B7 Bolts
ASTM A193 Grade B7 Bolts Price List India

Drawn or Turned M12 - M56 size A193 B7 Stud Bolt, A193 Grade B7 Anchor Bolts & SA 193 B7 material supplier in Mumbai

ASTM A193 GR. B7 FULL THREAD HEX BOLT PRICE LIST EX MUMBAI (INDIA)

Price in INR/ PCS

Dia M 10 M 12 M 14 M 16 M 18 M 20 M 22 M 24 M 27 M 30 M 33 M 39
Length
25 9.00 - - - - - - - - - - -
30 9.90 14.00 - - - - - - - - - -
40 11.60 15.00 26.00 26.50 48.00 56.00 - - - - - -
50 13.40 17.00 27.00 30.00 49.00 57.00 - - - - - -
60 15.20 19.00 28.20 34.60 50.00 58.00 104.00 102.00 158.00 - - -
70 16.90 22.00 33.00 38.20 58.20 64.50 106.50 105.00 158.00 - - -
80 19.00 24.40 34.50 42.50 60.50 70.70 108.00 107.50 160.00 217.00 - -
90 20.50 26.70 39.50 46.80 69.00 76.50 110.00 116.00 163.00 222.00 - -
100 22.20 29.00 41.00 50.00 71.20 82.90 112.50 123.50 176.00 228.00 345.00 -
110 - 32.00 - 53.70 80.00 88.00 130.00 132.00 187.50 257.00 350.00 -
120 - 33.00 - 58.20 85.00 93.50 133.50 145.00 208.00 268.00 356.00 -
125 - - - 60.00 86.00 97.00 136.20 150.00 213.00 272.00 360.00 -
130 - - - 61.40 93.00 100.00 140.00 158.00 218.00 292.00 362.00 -
140 - - - 67.00 94.00 109.00 155.00 162.00 224.00 297.00 373.00 -
150 - - - 69.00 95.00 111.50 157.00 167.00 238.00 304.00 380.00 930.00
160 - - - 78.00 - 128.00 - 185.50 255.00 330.00 400.00 940.00
170 - - - 86.00 - 134.00 - 191.00 262.00 338.00 430.00 1000.00
180 - - - 86.00 - 138.50 - 210.00 272.00 345.00 443.00 1020.00
200 - - - 95.00 - 150.00 - 225.00 300.00 380.00 470.00 1110.00

For more call us or send us an email to sales@jigneshsteel.com.

SA 193 Grade B7 Fasteners Specifications
SA 193 Grade B7 Bolts ANSI B18.2.1, B18.3, DIN 931/ 933
ASTM A193 Grade B7 Hex Bolts Size Metric
  • Dia: M10 - M110
  • Length: 12 - 1200MM
SA 193 B7 Hex Bolts Size Inch
  • Dia: 1/2" - 4.0"
  • Length: 1/2" - 52"
ASTM A193 Gr B7 Eye Bolts Metric Size
  • Dia: M10 - M48
SA 193 Gr B7 Stud Bolt Metric Size
  • Dia: M10 - M110
  • Length: 12 mm - 6000 mm
ASME SA193 Grade B7 Stud Bolt Inch
  • Dia: 1/2" - 4.1/2"
  • Length: 1/2" - 236"
AISI 4140 A193 B7 Hex Nut (DIA)
  • Metric: M6 - M110
  • Inch: 1/4" - 4.5"
ASME SA193 Gr B7 Plain Washer (DIA)
  • Metric: M6 - M110
  • Inch: 1/2" - 4.1/2"
ASTM A193 Grade B7 Bolts International Standard IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI
ASTM A193 B7 Bolts Standard Sizes M10, M4, M16, M36 M2.5, M6, M30, M12, M8, M14, M2, M3, M20, M24, M5 to M160
Alloy Steel ASTM A193 gr B7 Fasteners Threads BSF, UNF METRIC, UNC, UNEF, BSW or as required
ASME/ ANSI - American Standard ASTM A193 Grade B7 Bolts
  • ANSI B 28.2.4 1M
  • ANSI B 18.2.4 2M
  • ASME B18.5
  • ASME B18.2.2
DIN German Standard ASTM A193 Grade B7 Bolts DIN 933, DIN 931, DIN 970, DIN 934
ISO Standard A193 B7 Bolts ISO 4033, : ISO 4032, JIS standards
ASTM A193 Grade B7 Alloy Steel Bolts / Screws Head Drive Phillips, Slotted, Phillips/Slot, Six-Lobe
MTC (Manufacturer Test Certificate) EN 10204 / 3.1, NACE MR0103 / MR0175 / ISO 15156 Compliance
A193 Grade B7 Nut Bolt Finishing 
  • Zinc white, (yellow, black, blue), black oxide,
  • Dacroment, Geometry, plated zinc-nickel, anodizing, nickel plated,
  • Stainless steel: Passivated Self-Colour, Bright Zinc Plated (BZP),
  • Hot Dip Galvanised (HDG), Sherardized, DACROMET and Mechanically Applied coating
Grade B7 Alloy Steel Fasteners Production Process
  • M2-M24: Cold Forging, hot forging
  • M24-M100, machining and CNC for Customized connecting element
ASTM A193 Grade B7 Bolts Coating
  • Xylon Coated Fasteners
  • Phosphate Coated Fasteners
  • Hot Dipped Galvanizing Coated Fasteners
  • Teflon Coated Fasteners
  • Zinc Coated Fasteners
  • Cadmium Coated Fasteners
  • Ptfe Coated (Teflon) Fasteners
A193 Gr B7 Fasteners Packing Wooden Pallet, Canton, Carton / Small Box or as required

Relevant Grades

ASTM Grade Description
ASTM A193 B7 AISI 4140/ 4142 Alloy steel quenched and tempered
ASTM A193 B7m AISI 4140/ 4142 Alloy steel quenched and tempered
ASTM A193 B8 AISI 304 Class 1 Stainless steel,, carbide solution treated.
ASTM A193 B8M AISI 316 Class 1 Stainless steel, carbide solution treated.
ASTM A193 B8 AISI 304 Class 2 Stainless steel, carbide solution treated, strain hardened
ASTM A193 B8M AISI 316 Class 2 Stainless steel, carbide solution treated, strain hardened
Types of ASTM A193 Grade B7 Bolts

A193 Gr B7 Bolts, ASTM A193 Grade B7 Hex Bolts and ASME SA193 B7 Tie Rods and Nuts M12 to M56 suitable up to 450° temperature, Stud bolt a193 b7 with A194 2h nuts supplier

SA 193 Grade B7 Flange Bolts

SA 193 Grade B7 Flange Bolts

ASTM A193 Grade B7 Heavy Hex Bolts

ASTM A193 Grade B7 Heavy Hex Bolts

SA 193 B7 Hex Bolts

SA 193 B7 Hex Bolts

ASTM A193 Gr B7 Eye Bolts

ASTM A193 Gr B7 Eye Bolts

SA 193 Gr B7 Lag Bolts

SA 193 Gr B7 Lag Bolts

ASME SA193 Grade B7 Square Bolts

ASME SA193 Grade B7 Square Bolts

AISI 4140 A193 B7 U Bolts

AISI 4140 A193 B7 U Bolts

ASME SA193 Gr B7 Anchor Bolts

ASME SA193 Gr B7 Anchor Bolts

ASTM A193 B7 Hex Head Bolts

ASTM A193 B7 Hex Head Bolts

Alloy Steel ASTM A193 gr B7 Carriage Bolts

Alloy Steel ASTM A193 gr B7 Carriage Bolts

A193 B7 Allen Cap Bolt

A193 B7 Allen Cap Bolt

ASTM A193 Grade B7 Alloy Steel Countersunk Bolts

ASTM A193 Grade B7 Alloy Steel Countersunk Bolts

SA 193 B7 Nuts Types
SA 193 Grade B7 Hex Nuts

SA 193 Grade B7 Hex Nuts

ASTM A193 Grade B7 Heavy Hex Nuts

ASTM A193 Grade B7 Heavy Hex Nuts

SA 193 B7 Castle Nuts

SA 193 B7 Castle Nuts

ASTM A193 Gr B7 Hex Jam Nuts

ASTM A193 Gr B7 Hex Jam Nuts

SA 193 Gr B7 Heavy Jam Nuts

SA 193 Gr B7 Heavy Jam Nuts

ASME SA193 Grade B7 Hex Coupling Nuts

ASME SA193 Grade B7 Hex Coupling Nuts

AISI 4140 A193 B7 Sleeve Nuts

AISI 4140 A193 B7 Sleeve Nuts

ASME SA193 Gr B7 Lock Nuts

ASME SA193 Gr B7 Lock Nuts

ASTM A193 B7 Rivet Nuts

ASTM A193 B7 Rivet Nuts

Alloy Steel ASTM A193 gr B7 Lug Nuts

Alloy Steel ASTM A193 gr B7 Lug Nuts

A193 B7 Tee Nut

A193 B7 Tee Nut

ASTM A193 Grade B7 Alloy Steel Nylon Insert Hex Lock Nuts

ASTM A193 Grade B7 Alloy Steel Nylon Insert Hex Lock Nuts

ASTM A193 Gr B7 Screws Types
A193 Grade B7 Self Drilling Screws

A193 Grade B7 Self Drilling Screws

Grade B7 Alloy Steel Self Tapping Screws

Grade B7 Alloy Steel Self Tapping Screws

A193 Gr B7 Set Screws

A193 Gr B7 Set Screws

ASME SA193 B7 Socket Head Cap Screw

ASME SA193 B7 Socket Head Cap Screw

SA 193 Grade B7 Dowel Screw

SA 193 Grade B7 Dowel Screw

ASTM A193 Grade B7 Countersunk Screws

ASTM A193 Grade B7 Countersunk Screws

SA 193 B7 Socket Set Screw

SA 193 B7 Socket Set Screw

ASTM A193 Gr B7 Wood Screw

ASTM A193 Gr B7 Wood Screw

Types of SA 193 Gr B7 Threaded Rod and Studs

Stud Bolt ASTM A193 Grade B7 for Petrochemical industry, SA 193 Gr B7 Fasteners & AISI 4140 A193 Gr B7 Double Ended Studs exporter in India

SA 193 Grade B7 Stud Bolts

SA 193 Grade B7 Stud Bolts

ASTM A193 Grade B7 Double Ended Studs

ASTM A193 Grade B7 Double Ended Studs

ASTM A193 Gr B7 Fully Threaded Studs

ASTM A193 Gr B7 Fully Threaded Studs

SA 193 Gr B7 Threaded Rod

SA 193 Gr B7 Threaded Rod

ASME SA193 Grade B7 Unc Stud Bolt

ASME SA193 Grade B7 Unc Stud Bolt

Different types of ASME SA193 Grade B7 Washers
SA 193 Grade B7 Flat Washers

SA 193 Grade B7 Flat Washers

ASTM A193 Grade B7 Lock Washer

ASTM A193 Grade B7 Lock Washer

SA 193 B7 Spring Washer

SA 193 B7 Spring Washer

ASTM A193 Gr B7 Washers

ASTM A193 Gr B7 Washers

SA 193 Gr B7 Split Washers

SA 193 Gr B7 Split Washers

ASME SA193 Grade B7 Dock Washers

ASME SA193 Grade B7 Dock Washers

AISI 4140 A193 B7 Star Washers

AISI 4140 A193 B7 Star Washers

ASME SA193 Gr B7 Belleville Washers

ASME SA193 Gr B7 Belleville Washers

ASTM A193 B7 Fender Washer

ASTM A193 B7 Fender Washer

Alloy Steel ASTM A193 gr B7 Square Washers

Alloy Steel ASTM A193 gr B7 Square Washers

A193 B7 Spherical Washer

A193 B7 Spherical Washer

AISI 4140 A193 B7 Hex Bolt Dimensions Metric

AISI 4140 A193 B7 Hex Bolt Dimensions Metric

Hexagon Head Bolt with Nut DIN555 DIN601, ASME SA193 Grade B7, Metric Coarse

D k nom k Max Min s max s min e nom e Max Min shank Max shank Min washer Max washer Min
M1.6 1.1000 1.2250 0.9750 3.2000 3.0800 3.4100 3.7000 3.4800 1.6000 1.4600 - -
M2 1.4000 1.5250 1.2750 4.0000 3.8800 4.3200 4.6000 4.3800 2.0000 1.8600 - -
M2.5 1.7000 1.8250 1.5750 5.0000 4.8800 5.4500 5.8000 5.5100 2.5000 2.2300 - -
M3 2.0000 2.1250 1.8750 5.5000 5.3800 6.0100 6.4000 6.0800 3.0000 2.8600 5.0800 4.8300
M3.5 2.4000     6.0000   6.5800            
M4 2.8000 2.9250 2.6750 7.0000 6.8500 7.6600 8.1000 7.7400 4.0000 3.8200 6.5500 6.3000
M5 3.5000 3.6500 3.3500 8.0000 7.8500 8.7900 9.2000 8.8700 5.0000 4.8200 7.5500 7.3000
M6 4.0000 4.1500 3.8500 10.0000 9.7800 11.0500 11.5000 11.0500 6.0000 5.8200 9.4800 9.2300
M7 4.8000     11.0000   12.1200            
M8 5.3000 5.6500 5.3500 13.0000 12.7300 14.3800 15.0000 14.3800 8.0000 7.7800 12.4300 12.1800
M10 6.4000 7.1800 6.8200 17.0000 16.7300 18.9000 19.6000 18.9000 10.0000 9.7800 16.4300 16.1800
M12 7.5000 8.1800 7.8200 19.0000 18.6700 21.1000 21.9000 21.1000 12.0000 11.7300 18.3700 18.1200
M14 8.8000 9.1800 8.8200 22.0000 21.6700 24.4900 25.4000 24.4900 14.0000 13.7300 21.3700 21.1200
M16 10.0000 10.1800 9.8200 24.0000 23.6700 26.7500 27.7000 26.7500 16.0000 15.7300 23.2700 23.0200
M18 11.5000 12.2150 11.7850 27.0000 26.6700 30.1400 31.2000 30.1400 18.0000 17.7300 26.2700 26.0200
M20 12.5000 13.2150 12.7850 30.0000 29.6700 33.5300 34.6000 33.5300 20.0000 19.6700 29.2700 28.8000
M22 14.0000 14.2150 13.7850 32.0000 31.6100 35.7200 36.9000 35.7200 22.0000 21.6700 31.2100 30.7400
M24 15.0000 15.2150 14.7850 36.0000 35.3800 39.9800 41.6000 39.9800 24.0000 23.6700 34.9800 34.5100
M27 17.0000 17.2150 16.7850 41.0000 40.3800 45.2000 47.3000 45.6300 27.0000 26.6700 39.9800 39.3600
M30 18.7000 19.2600 18.7400 46.0000 45.3800 50.8500 53.1000 51.2800 30.0000 29.6700 44.9800 44.3600
M33 21.0000 21.2600 20.7400 50.0000 49.3800 55.3700 57.7000 55.8000 33.0000 32.6100 48.9800 48.3600
M36 22.5000 23.2600 22.7400 55.0000 54.2600 60.7900 63.5000 61.3100 36.0000 35.6100 53.8600 53.2400
M39 25.0000 25.2600 24.7400 60.0000 59.2600 66.4000 69.3000 66.9600 39.0000 38.6100 58.8600 58.2400
M42 26.0000 26.2600 25.7400 65.0000 64.2600 71.3000 75.1000 72.6100 42.0000 41.6100 63.7600 63.0400
M45 28.0000 28.2600 27.7400 70.0000 69.2600 76.9500 80.8000 78.2600 45.0000 44.6100 68.7600 68.0400
M48 30.0000 30.2600 29.7400 75.0000 74.2600 82.6000 86.6000 83.9100 48.0000 47.6100 73.7600 73.0400
M52 33.0000 33.2100 32.6900 80.0000 79.2600 88.3000 92.4000 89.5600 52.0000 51.5400 - -
M56 35.0000 35.3100 34.6900 85.0000 84.1300 93.6300 98.1000 95.0700 56.0000 55.5400 - -
M60 38.0000 38.3100 37.6900 90.0000 89.1300 99.3500 103.9000 100.7200 60.0000 59.5400 - -
M64 40.0000 40.3100 39.6900 95.0000 94.1300 104.9800 109.7000 106.3700 64.0000 63.5400 - -
M68 43.0000 43.3100 42.6900 100.0000 99.1300 110.5000 115.5000 112.0200 68.0000 67.5400 - -
M72 45.0000     105.0000 102.8000 116.0300       71.2600    
M76 48.0000     110.0000 107.8000 121.5500       75.2600    
M80 50.0000     115.0000   127.3000       79.2600    
M90 57.0000     130.0000   144.0000       89.1300    
M100 63.0000     145.0000   161.0000       99.1300    
M110 69.0000     155.0000   171.2800       109.1300    
M125 79.0000     180.0000   198.9000       124.0000    
M140 88.0000     200.0000   221.0000       139.0000    
M160 100.0000     230.0000   254.1500       159.0000    
ASME SA193 Gr B7 Stud Bolt Metric Dimensions

ASME SA193 Gr B7 Stud Bolt Metric Dimensions

DIN940 Stud End =2.1/2 D Sk6, SA 193 Gr B7, Metric Coarse

d b c l<125 c l<125<200 c l 200>
M3 7.5000 12.0000 18.0000  
M4 10.0000 14.0000 20.0000  
M5 12.5000 16.0000 22.0000  
M6 15.0000 18.0000 24.0000 37.0000
M7 17.5000 20.0000 26.0000 39.0000
M8 20.0000 22.0000 28.0000 41.0000
M10 25.0000 26.0000 32.0000 45.0000
M12 30.0000 30.0000 36.0000 49.0000
M14 35.0000 34.0000 40.0000 53.0000
M16 40.0000 38.0000 44.0000 57.0000
M18 45.0000 42.0000 48.0000 61.0000
M20 50.0000 46.0000 52.0000 65.0000
M22 55.0000 50.0000 56.0000 69.0000
M24 60.0000 54.0000 60.0000 73.0000
M27 67.5000 60.0000 66.0000 79.0000
M30 75.0000 66.0000 72.0000 85.0000
M33 82.5000 72.0000 78.0000 91.0000
M36 90.0000 78.0000 84.0000 97.0000
ASTM A193 B7 Hex Nut Dimensions Metric

ASTM A193 B7 Hex Nut Dimensions Metric

Hexagon Full Nut ASTM A193 Gr B7 DIN934, Metric Coarse

d s e m
M1.2 3.0000 3.2900 1.0000
M1.4 3.0000 3.2900 1.2000
M1.6 3.2000 3.4800 1.3000
M1.7 3.5000 3.8200 1.4000
M2 4.0000 4.3200 1.6000
M2.3 4.5000 4.9500 1.8000
M2.5 5.0000 5.4500 2.0000
M2.6 5.0000 5.5100 2.0000
M3 5.5000 6.0100 2.4000
M3.5 6.0000 6.0100 2.8000
M4 7.0000 7.6600 3.2000
M5 8.0000 8.7600 4.0000
M6 10.0000 11.0500 5.0000
M7 11.0000 12.1200 5.5000
M8 13.0000 14.3800 6.5000
M10 17.0000 18.9000 8.0000
M12 19.0000 21.1000 10.0000
M14 22.0000 24.4900 11.0000
M16 24.0000 26.7500 13.0000
M18 27.0000 29.5600 15.0000
M20 30.0000 32.9500 16.0000
M22 32.0000 35.0300 18.0000
M24 36.0000 39.5500 19.0000
M27 41.0000 45.2000 22.0000
M30 46.0000 50.8500 24.0000
M33 50.0000 55.3700 26.0000
M36 55.0000 60.7900 29.0000
M39 60.0000 66.4400 31.0000
M42 65.0000 71.3000 34.0000
M45 70.0000 76.9500 36.0000
M48 75.0000 82.6000 38.0000
M52 80.0000 88.2500 42.0000
M56 85.0000 95.0700 45.0000
M60 90.0000 100.7200 48.0000
M64 95.0000 106.3700 51.0000
M68 100.0000 112.0200 54.0000
M72 105.0000 117.6700 58.0000
M76 110.0000 123.3200 61.0000
M80 115.0000 128.9700 64.0000
M85 120.0000 133.1100 68.0000
M90 130.0000 145.7700 72.0000
M95 135.0000 151.4200 76.0000
M100 145.0000 162.7200 80.0000
M110 155.0000 174.0200 88.0000
M115 165.0000 185.3200 92.0000
M120 170.0000 190.9700 96.0000
M125 180.0000 202.2700 100.0000
M130 185.0000 207.7500 104.0000
M135 190.0000 213.4000 108.0000
M140 200.0000 224.7000 112.0000
M145 210.0000 236.0000 116.0000
M150 210.0000 236.0000 120.0000
Alloy Steel ASTM A193 gr B7 Washer Dimensions

Alloy Steel ASTM A193 gr B7 Washer Dimensions

Metric Type A Flat Washer AISI 4140 A193 B7 DIN 125A

d1  d2 
M1 1.1000 3.0000 0.3000
M1.2 1.3000 3.5000 0.3000
M1.4 1.5000 4.0000 0.3000
M1.6 1.7000 4.0000 0.3000
M1.7 1.8000 4.5000 0.3000
M2 2.2000 5.0000 0.3000
M2.3 2.5000 6.0000 0.5000
M2.5 2.7000 6.0000 0.5000
M2.6 2.8000 7.0000 0.5000
M3 3.2000 7.0000 0.5000
M3.5 3.7000 8.0000 0.5000
M4 4.3000 9.0000 0.8000
M5 5.3000 10.0000 1.0000
M6 6.4000 12.0000 1.6000
M7 7.4000 14.0000 1.6000
M8 8.4000 16.0000 1.6000
M10 10.5000 20.0000 2.0000
M12 13.0000 24.0000 2.5000
M14 15.0000 28.0000 2.5000
M16 17.0000 30.0000 3.0000
M18 19.0000 34.0000 3.0000
M20 21.0000 37.0000 3.0000
M22 23.0000 39.0000 3.0000
M24 25.0000 44.0000 4.0000
M27 28.0000 50.0000 4.0000
M30 31.0000 56.0000 4.0000
M33 34.0000 60.0000 5.0000
M36 37.0000 6.0000 5.0000
M39 40.0000 72.0000 6.0000
M42 43.0000 78.0000 7.0000
M45 46.0000 85.0000 7.0000
M48 50.0000 92.0000 8.0000
M52 54.0000 98.0000 8.0000
M55 57.0000 105.0000 9.0000
M56 58.0000 105.0000 9.0000
M58 60.0000 110.0000 9.0000
M60 62.0000 110.0000 9.0000
M64 66.0000 115.0000 9.0000
M68 70.0000 120.0000 10.0000
M72 74.0000 125.0000 10.0000
M76 78.0000 135.0000 10.0000
M80 82.0000 140.0000 12.0000
M85 87.0000 145.0000 12.0000
M90 93.0000 160.0000 12.0000
M95 98.0000 165.0000 12.0000
M100 104.0000 175.0000 14.0000
M105 109.0000 180.0000 14.0000
M110 114.0000 185.0000 14.0000
M115 119.0000 200.0000 14.0000
M120 124.0000 210.0000 16.0000
M125 129.0000 220.0000 16.0000
M130 134.0000 230.0000 16.0000
M135 139.0000 230.0000 16.0000
M140 144.0000 240.0000 18.0000
M145 149.0000 250.0000 18.0000
M150 155.0000 250.0000 18.0000
M160 165.0000 250.0000 18.0000
ASTM A193 Grade B7 Bolts Torque Chart
Size of Bolt TPI Proof Load (lbs) Clamp Load (lbs) Tightening Torque (ft lbs)
Galv+Waxed Galv Plain
1/4 20 3,350 2,513 5 13 10
5/16 18 5,500 4,125 11 27 21
3/8 16 8,150 6,113 19 48 38
7/16 14 11,150 8,363 30 76 61
1/2 13 14,900 11,175 47 116 93
9/16 12 19,100 14,325 67 168 134
5/8 11 23,750 17,813 93 232 186
3/4 10 35,050 26,288 164 411 329
7/8 9 48,500 36,375 265 663 530
1 8 63,650 47,738 398 995 796
11/8 7 80,100 60,075 563 1,408 1,126
11/8 8 82,934 62,201 583 1,458 1,166
11/4 7 101,750 76,313 795 1,987 1,590
11/4 8 105,006 78,754 820 2,051 1,641
13/8 6 121,300 90,975 1,042 2,606 2,085
13/8 8 129,492 97,119 1,113 2,782 2,226
11/2 6 147,550 110,663 1,383 3,458 2,767
11/2 8 156,687 117,515 1,469 3,672 2,938
13/4 5 199,500 149,625 2,182 5,455 4,364
13/4 8 218,400 163,800 - - 4,778
2 41/2 262,500 196,875 3,281 8,203 6,563
2 8 290,850 218,138 - - 7,271
21/4 41/2 341,250 255,938 4,799 11,997 9,598
21/4 8 373,801 280,351 - - 10,513
21/2 4 420,000 315,000 6,563 16,406 13,125
21/2 8 466,200 349,650 - - 14,569
23/4 4 468,500 351,263 8,050 20,124 16,100
23/4 8 515,851 386,888 - - 17,732
3 4 567,150 425,363 10,634 26,585 21,268
3 8 618,451 463,838 - - 23,192
31/4 4 674,500 505,875 13,701 34,252 27,402
31/4 8 730,550 547,913 - - 29,679
31/2 4 791,350 593,513 17,311 43,277 34,622
31/2 8 851,201 638,401 - - 37,240
33/4 4 917700 688275 21,509 53,771 43,017
33/4 8 982,300 736,725 - - 46,045
4 4 1052600 789450 26,315 65,788 52,630
4 8 1,121,950 841,463 - - 56,098

PTFE Coated ASTM 193 Grade B7 bolts & Stud with K=0.12. Torque FT-LBS

B7 BOLT
SIZE
Torque FT-LBS
30% Initial
Torque
70%
Torque
100% Final
Torque
1/2 12 29 41
9/16 18 41 59
5/8 24 57 82
3/4 43 101 145
7/8 70 163 233
1 105 245 350
1.1/8 154 359 513
217 505 722
1.3/8 294 685 979
388 905 1292
1.9/16 441 1030 1471
1.5/8 501 1169 1670
631 1471 2102
1.7/8 783 1827 2610
2 960 2240 3199
1388 3238 4626
1923 4487 6410
2341 5462 7802
3 3061 7143 10204

PTFE Coated ASTM 193 Grade B7 bolts & Stud with K=0.12. Torque Nm

B7 BOLT
SIZE
Torque Nm
30% Initial
Torque
70%
Torque
100% Final
Torque
1/2 16 39 56
9/16 24 56 80
5/8 33 77 111
3/4 58 137 197
7/8 95 221 316
1 142 332 475
1.1/8 209 487 696
294 685 979
1.3/8 399 929 1327
526 1227 1752
1.9/16 598 1396 1994
1.5/8 679 1585 2264
856 1994 2850
1.7/8 1062 2477 3539
2 1302 3037 4337
1882 4390 6272
2607 6084 8691
3174 7405 10578
3 4150 9685 13835
A193 B7 Fasteners Chemical Composition
Element Grade B7 Bolts (AISI 4140)
Carbon (C) 0.38 - 0.48%
Manganese 0.75 - 1.00%
Phosphorus, max 0.035%
Sulfur, max 0.040%
Silicon 0.15 - 0.35%
Chromium 0.80 - 1.10%
Nickel (Ni)
Molybdenum 0.15 - 0.25%
ASTM A193 Grade B7 Alloy Steel Bolts Mechanical Properties
Grade Size Tensile Stress ksi, min Yield Strength, ksi, min Elong, %, min RA % min HBW HRC
B7 Bolts Up to 2-1/2 125 105 16 50 321 max 35 max
2-5/8 - 4 115 95 16 50
4-1/8 - 7 100 75 18 50
A193 Grade B7 Nut Bolt Equivalent Grade
  • YB 6 Grade 42CrMo
  • AS G18 Grade En19A
  • AS G18 Grade En19
  • AS 1444 Grade 4140
  • AS 1444 Grade 4140H
  • GOST 8479 Grade 38KhM
  • GOST 8479 Grade 40KhMFA
  • GOST 8479 Grade 40KhFA
  • GOST 4543 Grade 38KhM
  • GOST 4543 Grade 40KhMFA
  • GOST 4543 Grade 40KhFA
  • EURONORM 119-3 Grade 42CrMo4KD
  • NBN 253-02 Grade 42CrMo4
  • NBN 253-02 Grade 41CrMo4
  • NBN 253-06 Grade 41CrMo4
  • DIN 17205 Grade GS-42CrMo4
  • DIN 1652-4 Grade 42CrMo4
  • DIN 1654-4 Grade 42CrMo4
  • DIN 17204 Grade 42CrMo4
  • DIN 17212 Grade 41CrMo4
  • BDS 6354 Grade 40ChMA
  • BDS 6550 Grade 40ChML
  • SEW 550 Grade 42CrMo4
  • SEW 835 Grade GS-42CrMo4
  • EN 10083-1 Grade 42CrMo4
  • CSN 422843
  • CSN 415142 Grade 15142
  • EURONORM 83 Grade 42CrMo4
  • EURONORM 86 Grade 41CrMo4
  • EURONORM 119-4 Grade 42CrMo4KD