ASTM A194 Nut Specification

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  • Broad Product Range
  • High Quality & Mechanical Strength
  • Strong Documentation
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Table Of Content

Genuine ASME SA 194 Hex Nut Manufacturer in India in Various Grades

ASTM A194 Nut Specification

Prominent ASTM A194 Nut Manufacturer in India in Various Grades and Custom Sizes

ASTM A194 Nut Standard Sizes
ASTM A194 Nut Standard Sizes
  • Metric sizes: M3- M56
  • Imperial Sizes : 3/6 to 2″
  • Length:3- 200 mm
ASTM A194 Hex Nut End
ASTM A194 Hex Nut Marking
  • Material grade
  • Specification
  • Heat number
  • Custom logo
ASTM A194 Nut Types
ASTM A194 Nut Types
  • Hex Nuts
  • Heavy Hex Nut
  • Square Nuts
  • Dome Nut

 

ASTM A194 Fasteners Process
ASTM A194 Fasteners Process
  • Hot forging
  • CNC Machined
  • Cold forging

 

A194M Bolts Origin
A194M Bolts Origin
  • Korean
  • European
  • American
  • Janpanese
ASME SA 194 Hex Nut Finish
ASME SA 194 Hex Nut Finish
  • HDG
  • Oxidation
  • Phosphating
ASTM A 194 Lug Nut Condition
ASTM A 194 Lug Nut Condition
  • Threading
  • Cold Drawn

 

ASTM A194 Nut Physical Properties
ASTM A194 Nut Physical Properties
  • Density: 7.85 g/cm³
  • Melting Point: 1425-1540 °C
  • Thermal Conductivity : 45-50 W/m·K
ASME SA 194 Hex Nut Standards
ASME SA 194 Hex Nut Standards
  • ASTM A194
  • ASME SA 194
A194M Bolts Threads
A194M Bolts Threads
  • UNC BSF
  • UNF
  • METRIC
  • BSW

 

ASTM A194 Fasteners Features
ASTM A194 Fasteners Features
  • High-Strength Performance
  • Wide Material Range
  • Mechanical Reliability
  • Corrosion Resistance
ASME SA 194 Hex Nut Application
ASME SA 194 Hex Nut Application
  • High-Pressure Piping Systems
  • Pressure Vessels and Boilers
  • Petrochemical
  • Power Plants

ASME SA 194 Nut Size Chart

Nut Size
(mm)		 Diameter*
(mm)		 Height
(mm)
Hex Nut Jam Nut Nylock Nut
5 8 4 2.7 5
2 4 1.6 1.2 –
2.5 5 2 1.6 –
3 5.5 2.4 1.8 4
10 17 8 5 10
12 19 10 6 12
4 7 3.2 2.2 5
6 10 5 3.2 6
7 11 5.5 3.5 –
8 13 6.5 4 8
14 22 11 7 14
16 24 13 8 16
18 27 15 9 18.5
20 30 16 10 20

Buy Forged and CNC Machined A194M Bolts in Custom Sizes At Factory Price, Refer Dimensions

ASTM A194 Hex Nuts Dimension Chart

Nominal Size or Basic Major Thread Diameter F G H
Width Across Flats Width Across Corners Thickness
Basic Max Min Max Min Basic Max Min
7/8 .8750 1-7/16 1.438 1.394 1.660 1.589 55/64 .885 .833
2-1/4 2.2500 3-1/2 3.500 3.388 4.041 3.862 2-13/64 2.251 2.155
1 1.0000 1-5/8 1.325 1.575 1.876 1.796 63/64 1.012 .956
3-1/2 3.5000 5-3/8 5.375 5.200 6.207 5.928 3-7/16 3.506 3.370
3-3/4 3.7500 5-3/4 5.750 5.562 6.640 6.341 3-11/16 3.670 3.616
1-1/8 1.1250 1-13/16 1.812 1.756 2.093 2.002 1-7/64 1.139 1.079
1-1/4 1.2500 2 2.000 1.938 2.309 2.209 1-7/32 1.251 1.187
1/4 .2500 1/2 .500 .488 .577 .556 15/64 .250 .218
5/16 .3125 9/16 .562 .546 .650 .622 19/64 .314 .280
3/8 .3750 11/16 .688 .669 .794 .763 23/64 .377 .341
5/8 .6250 1-1/16 1.062 1.031 1.227 1.175 39/64 .631 .587
3/4 .7500 1-1/4 1.250 1.212 1.443 1.382 47/64 .758 .710
1-3/8 1.3750 2-3/16 2.188 2.119 2.526 2.416 1-11/32 1.378 1.460
1-1/2 1.5000 2-3/8 2.375 2.300 2.742 2.622 1-15/32 1.505 1.433
1-5/8 1.6250 2-9/16 2.562 2.481 2.959 2.828 1-19/32 1.632 1.556
1-3/4 1.7500 2-3/4 2.750 2.662 3.175 3.035 1-23/32 1.759 1.679
2-1/2 2.5000 3-7/8 3.875 3.750 4.474 4.275 2-29/64 2.505 2.401
2-3/4 2.7500 4-1/4 4.250 4.112 4.907 4.688 2-45/64 2.759 2.647
2 2.0000 3-1/8 3.125 3.025 3.608 3.449 1-31/32 2.013 1.925
3 3.0000 4-5/8 4.625 4.475 5.340 5.102 2-61/64 3.013 2.893
3-1/4 3.2500 5 5.000 4.838 5.774 5.515 3-3/16 3.252 3.124
7/16 .4375 3/4 .750 .728 .866 .830 27/64 .441 .403
1/2 .5000 7/8 .875 .850 1.010 .969 31/64 .504 .464
9/16 .5625 15/16 .938 .909 1.083 1.037 35/64 .568 .526
4 4.0000 6-1/8 6.125 5.925 7.073 6.755 3-15/16 4.014 3.862

ASTM A194 Fasteners Proof Load Using Threaded Mandrel

Nominal Size, in. Stress Area in.2 Threads per Inch Proof Load, lbf A
Grade 1 Grades 2, 2HM, 6, 6F, 7M Grades 2H, 3, 7, 16
Heavy Hex B Hex C Heavy Hex D Hex E Heavy Hex F Hex G
1 1⁄4 1.000 8 130000 120000 150000 135000 175000 150000
1 3⁄8 1.233 8 160200 148000 185000 166500 215800 185000
1 1⁄2 1.492 8 194000 170040 223800 201400 261100 223800
5⁄8 0.226 11 29380 27120 33900 30510 39550 33900
3⁄4 0.334 10 43420 40080 50100 45090 58450 50100
7⁄8 0.462 9 60060 55440 69300 62370 80850 69300
1⁄4 0.0316 20 4130 3820 4770 4300 5570 4770
1⁄2 0.1419 13 18450 17030 21280 19160 24830 21280
7⁄16 0.1063 14 13820 12760 15940 14350 18600 15940
9⁄16 0.182 12 23660 21840 27300 24570 31850 27300
1 0.606 8 78780 72720 90900 81810 106000 90900
1 1⁄8 0.790 8 102700 94800 118500 106700 138200 118500
5⁄16 0.0524 18 6810 6290 7860 7070 9170 7860
3⁄8 0.0774 16 10080 9300 11620 10460 13560 11620
Nominal Size, in. Threads per Inch Stress Area in. 2
All Types of Grade 8, Grades 9C and 9CA
Heavy HexH Hex I
1 8 0.606 48480 45450
1 1⁄2 8 1.492 119360 111900
1⁄4 20 0.0316 2540 2380
5⁄8 11 0.226 18080 16950
3⁄4 10 0.334 26720 25050
5⁄16 18 0.0524 4190 3930
1 1⁄8 8 0.790 63200 59250
1 1⁄4 8 1.000 80000 75000
1 3⁄8 8 1.233 98640 92450
3⁄8 16 0.0774 6200 5810
7⁄16 14 0.1063 8500 7970
1⁄2 13 0.1419 11350 10640
9⁄16 12 0.182 14560 13650
7⁄8 9 0.462 36960 34650

Weight Count for ASTM A 194 Heavy Hex Nuts

Weight Count for ASTM A 194 Heavy Hex Nuts

Size M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M45 M48
18.49 27.03 34.90 46.45 65.22 77.96 114.77 159.55 223.87 281.73 390.79 500.86 608.91 773.51 979.51 1145.11

ASME SA 194 Hex Nut Temperature

Grades Minimum Tempering Temperature, °F
2HM 1150 [620]
2H 850 [455]
3 1050 [565]
6 and 6F 1100 [595]
7 1100 [595]
7M 1150 [620]
16 1200 [650]

European Origin SA194 Square and Dome Nut Supplier in Mumbai For High Pressure or High Temperature Service

SA194 Dome Nut Applications

SA194 Dome Nut Applications

Most Frequently Used Types Of ASTM A194 Nut

Cut to Length  ASTM A194 Nut Supplier in India in Custom Shapes like Square, Rectangular etc.

ASTM A194 Hex Nuts

ASTM A194 Hex Nuts

ASTM A 194 Heavy Hex Nut

ASTM A 194 Heavy Hex Nut

ASME SA 194 Square Nuts

ASME SA 194 Square Nuts

ASME SA194 Dome Nut

ASME SA194 Dome Nut

SA 194 Lug Nuts

SA 194 Lug Nuts

A194 Lock Nut

A194 Lock Nut

A194M Acorn Nuts

A194M Acorn Nuts

ASME 194 Barrel Nut

ASME 194 Barrel Nut

ASME A194 Slotted Nuts

ASME A194 Slotted Nuts

Surface Coatings for SA194 Square Nuts

  • Hot Dipped Galvanizing
  • Zinc Plating
  • Cadmium Plating
  • Black Phosphate
  • PTFE
  • Dacromet®

Proof Stress of ASTM A194 Hex Nut

Type Grade 1 Grades 2, 2HM, 6, 6F & 7M Grades 2H 3, 7, & 16
Heavy Hex 130000 150000 175000
Hex 120000 135000 150000
Find Source Of ASTM A 194 Lug and Acorn Nuts Tested With Hardness and Proof of Load Tests

ASTM A 194 Acorn Nuts Testings

Expert ASTM A194 Nut Manufacturer in India delivering excellence in both design and material strength.

  • Hardness Test
  • Load Tests
  • Tensile Strength Test
  • Metallurgical Test
  • Yield Strength Test

SA 194 Lug Nuts Proof Load Testing

Nominal Size, in. Stress Area, Threads per in. All Types of Grade 8 (strain hardened) All Types of Grade 8 (strain hardened)
Hex B Heavy Hex C
1 1⁄8 0.790 8 75050 82950
1 1⁄4 1.000 8 95000 105000
1 3⁄8 1.233 8 110970 123300
1 1⁄2 1.492 8 134280 149200
5/16 0.0523 18 5760 6550
3/8 0.0774 16 8510 9675
7/8 0.462 9 46200 53130
1 0.606 8 60600 69690
7/16 0.1063 14 11690 13290
1/2 0.1419 13 15610 17740
9/16 0.182 12 20020 22750
5/8 0.226 11 24860 28250
3/4 0.334 10 36740 41750
1/4 0.0316 20 3480 3950

Proof Load for A194M Large Heavy Hex Nuts

Nominal Size, in Stress Area, in. 2 Threads per in. Proof Load, lbf A
Grade 1 Heavy Hex Grades 2, 2HM, 6, 6F, 7M
Heavy Hex		 Grades 2H, 3, 7, 16
Heavy Hex
2 1⁄4 3.56 8 462800 534000 623000
2 1⁄2 4.44 8 577200 666000 777000
1 7⁄8 2.41 8 313300 361500 421800
1 5⁄8 1.78 8 231400 267000 311500
1 3⁄4 2.08 8 270400 312000 364000
2 2.77 8 360100 415500 484800
2 3⁄4 5.43 8 705900 814500 950250

ASME SA194 Nut Marking

Grade and Type Nuts Machined from Bar Stock Nuts Hot-Forged or Cold-Punched Nuts Manu-factured in Accordance with 6.6
1 1B 1 –
2 2B 2 –
2H B 2HB 2H –
2HM B,C 2HMB 2HM –
3 3B 3 –
6 6B 6 –
6F 6FB 6F –
7 7B 7 –
7L D 7BL 7L –
7M B,C 7MB 7M –
7ML B,D 7MLB 7ML –
8 8B 8 8A
8C 8CB 8C 8CA
8CLN 8CLNB 8CLN 8CLNA
8M 8MB 8M 8MA
8T 8TB 8T 8TA
8F 8FB 8F 8FA
8P 8PB 8P 8PA
8N 8NB 8N 8NA
8MN 8MNB 8MN 8MNA
8R 8RB 8R 8RA
8S 8SB 8S 8SA
8LN 8LNB 8LN 8LNA
8MLN 8MLNB 8MLN 8MLNA
8MLCuN 8MLCuNB 8MLCuN 8MLCuNA
8ML4CuN 8ML4CuNB 8ML4CuN 8ML4CuNA
9C 9CB 9C 9CA
16 16B 16 –

ASTM A194 Nuts Torque Chart

Size Range Clamp
Load P
Lbs.		 Tensile Stress
Area As
Sq. In.		 Tightening Torque
Dry
K = .223		 Lubed
K= .167
Ft. Lbs. Ft. Lbs.
  • 7/8-9
  • 1-8
  • 1-1/8-8
  • 1-1/4-8
  • 33,900
  • 44,550
  • 58,200
  • 73,800
  • 0.452
  • 0.594
  • 0.776
  • 0.984
  • 551
  • 828
  • 1,217
  • 1,714
  • 413
  • 620
  • 911
  • 1,284
  • 1/2-13
  • 9/16-12
  • 5/8-11
  • 3/4-10
  • 10,350
  • 13,275
  • 16,500
  • 24,525
  • 0.138
  • 0.177
  • 0.220
  • 0.327
  • 96
  • 139
  • 192
  • 342
  • 72
  • 104
  • 143
  • 256
  • 1-7/8-8
  • 2-8
  • 2-1/4-8
  • 2-1/2-8
  • 180,750
  • 205,500
  • 264,000
  • 330,000
  • 2.41
  • 2.74
  • 3.52
  • 4.40
  • 6,298
  • 7,638
  • 11,038
  • 15,331
  • 4,716
  • 5,720
  • 8,266
  • 11,481
  • 1-3/8-8
  • 1-1/2-8
  • 1-5/8-8
  • 1-3/4-8
  • 91,125
  • 110,325
  • 132,675
  • 154,500
  • 1.215
  • 1.471
  • 1.769
  • 2.06
  • 2,328
  • 3,076
  • 4,006
  • 5,024
  • 1,744
  • 2,303
  • 3,000
  • 3,763
Offer ASTM A194 Fasteners Which Covers Alloy Steel, Carbon Steel, and Stainless Steel Material, Refer Properties

A194 Chemical Properties

Reliable ASTM A194 Nut Supplier in India with a commitment to innovation and product integrity.

Element 2, 2H, and 2HM 4 7 and 7M (AISI 4140) 8 (AISI 304) 8M (AISI 316)
Phosphorus, max 0.040% 0.035% 0.035% 0.045% 0.045%
Sulfur, max 0.050% 0.040% 0.040% 0.030% 0.030%
Carbon 0.40% min 0.40 – 0.50% 0.37 – 0.49% 0.08% max 0.08% max
Manganese 1.00% max 0.70 – 0.90% 0.65 – 1.10% 2.00% max 2.00% max
Nickel – – – 8.0 – 11.0% 10.0 – 14.0%
Molybdenum – 0.20 – 0.30% 0.15 – 0.25% – 2.00 – 3.00%
Silicon 0.40% max 0.15 – 0.35% 0.15 – 0.35% 1.00% max 1.00% max
Chromium – – 0.75 – 1.20% 18.0 – 20.0% 16.0 – 18.0%

A194 Mechanical Properties

Grades Nominal Size, In. Proof Load Stress, ksi Tempering Temp. °F Hardness Rockwell See Note
Min Max
ASTM A194 Grade 2 1/4 – 4 150 0 159 352 1,2,3
ASTM A194 Grade 2H 1/4 – 4 175 850 C24 C38 1,2
ASTM A194 Grade 2HM 1/4 – 4 150 1150 159 237 1,2,3
ASTM A194 Grade 4 1/4 – 4 175 1100 C24 C38 1,2
ASTM A194 Grade 7 1/4 – 4 175 1100 C24 C38 1,2
ASTM A194 Grade 7M 1/4 – 4 150 1150 159 237 1,2,3
ASTM A194 Grade 8 1/4 – 4 80 – 126 300 4
ASTM A194 Grade 8M 1/4 – 4 80 – 126 300 4

Hardness Requirements for A194M Bolts

Grade and Type Sample Nut after Treatment Completed Nuts
Brinell Hardness, min Rockwell Hardness B Scale,min Brinell Hardness Rockwell Hardness
C Scale B Scale
1 121 70 121 min – 70 min
2 159 84 159 to 352 – 84 min
2H over 11 ⁄ 2 in. or M36 147 79 212 to 327 35 max 95 min
2HM and 7M 159 84 159 to 235 – 84 to 99
2H to 11 ⁄ 2 in. or M36, incl 179 89 248 to 327 24 to 35 –
3, 7, and 16 201 94 248 to 327 24 to 35 –
6 and 6F – – 228 to 271 20 to 28 –
8R, 8RA, 8S, and 8SA – – 183 to 271 25 max 88 min
8, 8C,8CLN, 8M, 8T, 8F, 8P, 8N, 8MN, 8LN, 8MLN, 8MLCuN, 8ML4CuN, and 9C – – 126 to 300 32 max 60 min
8A, 8CA, 8CLNA, 8MA, 8TA, 8FA, 8PA, 8NA, 8MNA, 8LNA, 8MLNA, 8MLCuNA, 8ML4CuNA, and 9CA – – 126 to 1929 – 60 to 90

ASTM A194 Nut Delivery Location and Time

Export to Shipping Time in Days
Germany 21
France 28
Netherland 30
Spain  30
Uk 30
Russia 20
Belgium 40
Ukraine 60

ganpat industrial corporation

6 Reasons to choose Ganpat Industrial Corporation

  1. Distributor of Heat Exchanger parts and Alloys for High Temperature applications.
  2. Stockholder and importer of Ferrous and non ferrous metals.
  3. Wide stock of prime quality austenitic and Ferritic Stainless Steel for Extreme pressure environment.
  4. Marine grade steel at lowest price in Mumbai.
  5. Compare Price per KG in India and China.
  6. Offer Resale price to local suppliers, traders and wholesalers in UAE, Saudi Arabia, Egypt, and USA