The ASTM A194 specification covers nuts made of carbon, alloy, and stainless steel. These ASTM A194 Grade 8 Nuts can be used in applications involving either high temperature or high pressure, although they are primarily designed to be utilised in high pressure service. The American National Standard Heavy Hex Series (ANSI B 18.2.2) shall be utilised to produce these fasteners unless the buyer specifies otherwise.
Table of Content
The Grade 8 in the A194 Gr 8 Material designates hefty hex nuts manufactured of stainless steel that is AISI 304 grade. Austenitic stainless steel is used in the ASTM A194 Gr. 8 Nut specification, therefore this grade's mechanical characteristics are remarkable. The SA194 Gr 8 Nut standard material exhibits good creep resistance, good tensile strength, and good corrosion resistance at high temperatures.
This is because of their austenitic structure, which supports and enhances their mechanical qualities, as well as their chemical makeup. As a result, they would make a good fastener choice for environments with high pressure and high temperatures. The material used to create ASTM A194 Grade 8 Heavy Hex Nuts specification must be free of radioactive contamination and mercury.
ASTM A194 Grade 8 Nuts
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Price
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A194 grade 8 ansi b18.2.2 hex nut
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US$ 0.01-US$ 3.00 / Piece
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Factory price astm a194 grade 8 heavy hex nut
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US$ 0.20-US$ 20.00 / Piece
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astm a194 gr 8 heavy double hex nut m84
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US$ 0.981-US$ 1.44 / Kilogram
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ASTM DIN914 A194 grade 8 hexagon nut with grade 4.8 8.8
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US$ 0.01-US$ 2.00 / Piece
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Stock ASTM A194 GR 8 Heavy Hex Bolt
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US$ 0.01-US$ 1.00 / Piece
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black oiled ASTM A194 GR.8 Heavy Hex Nut
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US$ 0.01-US$ 0.02 / Piece
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ANSI/ASME ASTM A194 Gr 8 Hex Heavy Structural Nut
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US$ 0.012-US$ 0.05 / Piece
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Dimensions
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ASME B18.2.1, B18.3
|
---|---|
Melt Origin
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South America/East Europe/Japan/Korea/
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Product Origin
|
Made in India
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Threads Configuration
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ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads
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Certification
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Dual Certified As per ASTM & ASME Codes
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Additional Certifications
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PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
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Mandatory Requirements
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Free from Mercury & Radioactive Contamination
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Additional Requirements
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NACE MR0103 / MR0175 / ISO 15156 Compliance
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Standards
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Designation
|
---|---|
ASTM
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A194 Grade 8: Stainless AISI 304 Heavy Hex Nuts.
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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
|
||
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
|
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
|
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
|
7/8
|
.8750
|
1-7/16
|
1.438
|
1.394
|
1.660
|
1.589
|
55/64
|
.885
|
.833
|
1
|
1.0000
|
1-5/8
|
1.325
|
1.575
|
1.876
|
1.796
|
63/64
|
1.012
|
.956
|
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
|
1-3/8
|
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
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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
|
2.0000
|
3-1/8
|
3.125
|
3.025
|
3.608
|
3.449
|
1-31/32
|
2.013
|
1.925
|
2-1/4
|
2.2500
|
3-1/2
|
3.500
|
3.388
|
4.041
|
3.862
|
2-13/64
|
2.251
|
2.155
|
2-1/2
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2.5000
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3-7/8
|
3.875
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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
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2.759
|
2.647
|
3
|
3.0000
|
4-5/8
|
4.625
|
4.475
|
5.340
|
5.102
|
2-61/64
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3.013
|
2.893
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3-1/4
|
3.2500
|
5
|
5.000
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4.838
|
5.774
|
5.515
|
3-3/16
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3.252
|
3.124
|
3-1/2
|
3.5000
|
5-3/8
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5.375
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5.200
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6.207
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5.928
|
3-7/16
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3.506
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3.370
|
3-3/4
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3.7500
|
5-3/4
|
5.750
|
5.562
|
6.640
|
6.341
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3-11/16
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3.670
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3.616
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4
|
4.0000
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6-1/8
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6.125
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5.925
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7.073
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6.755
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3-15/16
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4.014
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3.862
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**All measurements in millimeters**
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
|
||
1/4
|
.2500
|
7/16
|
.438
|
.428
|
.505
|
.488
|
7/32
|
.226
|
.212
|
5/16
|
.3125
|
1/2
|
.500
|
.489
|
.577
|
.557
|
17/64
|
.273
|
.258
|
3/8
|
.3750
|
9/16
|
.562
|
.551
|
.650
|
.628
|
21/64
|
.337
|
.479
|
7/16
|
.4375
|
11/16
|
.688
|
.675
|
.794
|
.768
|
3/8
|
.385
|
.365
|
1/2
|
.5000
|
3/4
|
.750
|
.736
|
.866
|
.840
|
7/16
|
.448
|
.427
|
9/16
|
.5625
|
7/8
|
.875
|
.861
|
1.010
|
.982
|
31/64
|
.496
|
.473
|
5/8
|
.6250
|
15/16
|
.938
|
.922
|
1.083
|
1.051
|
35/64
|
.559
|
.535
|
3/4
|
.7500
|
1-1/8
|
1.125
|
1.088
|
1.299
|
1.240
|
41/64
|
.665
|
.617
|
7/8
|
.8750
|
1-5/16
|
1.312
|
1.269
|
1.516
|
1.447
|
3/4
|
.776
|
.724
|
1
|
1.0000
|
1-1/2
|
1.500
|
1.450
|
1.732
|
1.653
|
55/64
|
.887
|
.831
|
1-1/8
|
1.1250
|
1-11/16
|
1.688
|
1.631
|
1.949
|
1.859
|
31/32
|
.999
|
.939
|
1-3/8
|
1.3750
|
2-1/16
|
2.062
|
1.994
|
2.382
|
2.273
|
1-11/64
|
1.206
|
1.138
|
1-1/2
|
1.500
|
2-1/4
|
2.250
|
2.175
|
2.598
|
2.480
|
1-9/32
|
1.ASTM A194 GR. 8
|
1.245
|
1-5/8
|
1.6250
|
2-7/16
|
2.438
|
2.356
|
2.815
|
2.686
|
1-25/64
|
1.429
|
1.353
|
1-3/4
|
1.7500
|
2-5/8
|
2.625
|
2.538
|
3.031
|
2.893
|
1-1/2
|
1.540
|
1.460
|
2
|
2.0000
|
3
|
3.000
|
2.900
|
3.464
|
3.306
|
1-23/32
|
1.763
|
1.675
|
2-1/4
|
2.2500
|
3-3/8
|
3.375
|
3.263
|
3.897
|
3.719
|
1-15/16
|
1.986
|
1.890
|
2-1/2
|
2.5000
|
3-3/4
|
3.750
|
3.625
|
4.330
|
4.133
|
2-5/32
|
2.209
|
2.105
|
2-3/4
|
2.7500
|
4-1/8
|
4.125
|
3.988
|
4.763
|
4.546
|
2-3/8
|
2.431
|
2.319
|
Nut Size
(mm) |
Diameter*
(mm) |
Height
(mm) |
||
---|---|---|---|---|
Hex Nut
|
Jam Nut
|
Nylock Nut
|
||
2
|
4
|
1.6
|
1.2
|
-
|
2.5
|
5
|
2
|
1.6
|
-
|
3
|
5.5
|
2.4
|
1.8
|
4
|
4
|
7
|
3.2
|
2.2
|
5
|
5
|
8
|
4
|
2.7
|
5
|
6
|
10
|
5
|
3.2
|
6
|
7
|
11
|
5.5
|
3.5
|
-
|
8
|
13
|
6.5
|
4
|
8
|
10
|
17
|
8
|
5
|
10
|
12
|
19
|
10
|
6
|
12
|
14
|
22
|
11
|
7
|
14
|
16
|
24
|
13
|
8
|
16
|
18
|
27
|
15
|
9
|
18.5
|
20
|
30
|
16
|
10
|
20
|
* This is the diameter across the flats. It is also the size of wrench to use.
|
ASTM A194 Gr 8 Nylock Insert Nut
|
ASTM A194 Grade 8 Nuts
|
ASTM A 194 Coupling Nut Supplier
|
ASTM A194 Square Nut
|
ASTM A194 Grade 8 Flange Nuts
|
A194 Grade 8 Hex Nut
|
ISO Approved ASTM A194 Eye Nut
|
ASTM A 194 Gr.8 Nuts Manufacturer
|
SS Gr.8 Lock Nut
|
SS Gr.8 Heavy Hex Nuts Distributor
|
Stainless Steel Gr.8 T Nuts Supplier
|
ASTM A 194 Gr.8 Dome Nut
|
ASTM A 194 Gr.8 Heavy Hex Nuts
|
ASTM A194 Locking Nuts Supplier
|
ASTM A 194 Hex Nuts
|
A194 Grade 8 T But
|
ASTM A 194 Gr.8 Lock Nuts Exporter
|
Gr.8 Panel Nuts
|
SA194 Nuts Exporter
|
Stainless Steel Gr.8 Panel Nut Manufacturer
|
Gr.8 Stainless Steel Washer
|
Gr.8 Acorn Nut
|
Stainless Steel Gr.8 Wing Nuts
|
ASTM A194 Grade 8 Panel Nut
|
ASTM
|
A194 Grade 8
|
Percentage
|
%
|
C.
|
0.08 %
|
Mn.
|
2.00 %
|
Si.
|
1.00 %
|
P.
|
0.05 %.
|
S.
|
0.03 %
|
Cr.
|
18.0-20.0 %
|
Ni.
|
8.0-11.0
|
Mo.
|
--
|
Tensile Strength/Ultimate Tensile Stress (UTS) – (Mpa)
|
Yield Strength/Proof Stress(0.2% Offset) (YS) – (Mpa)
|
Elongation in 4D (El)
|
Reduction
|
Hardness – (BHN)
|
550
|
240
|
30
|
40
|
223
|