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ASTM A194 Grade 7 Heavy Hex Nuts

Home ASTM A194 Grade 7 Heavy Hex Nuts
ASTM A194 Grade 7 Heavy Hex Nuts

SA 194 Gr 7 Washer manufacturer in India

ASTM A194 Grade 7 Nuts belong to a specification for chromium molybdenum alloy steel that are heat treated and internally threaded. Viha Steel & Forging is a leading manufacturer and supplier of the different grades of the ASME SA 194 Gr 7 Hex Nut and others. The hex nuts are very common in this grade as they are much suitable for high torque tightening. There are different grades in the A194 specification such as AISI 4140, 4142, 4245 and 4145H. The ASTM A194 Gr 7 Heavy Hex Nuts are produced with hot forging, cold forging and machining from heat treated bar stock.

The material is made up of carbon, manganese, phosphorus, sulfur, silicon, chromium and molybdenum. The different fasteners such as the ASTM A194 Grade 7 Washer and others are quenched and tempered at 595 degrees Celsius and the Brinell hardness increases up to 248 to 327BHN. The fasteners sizes range from ¼ inches to 1 ½ inches with threads ranging from 8 threads per inch to 20 threads per inches.

The SA 194 Grade 7 Nuts range from M6 to M100 with tensile strength ranging from 150ksi to 175ksi. The application of these fasteners is seen in the oil and gas, petroleum, chemical, pharmaceutical and power generation industries. The astm a194 grade 7l nuts can also be applied in coolers, heaters, heat exchangers, condensers and in boiler grade applications. As a leading manufacturer of the different types of these fasteners, we can supply any of your order requirements. Please feel free to contact us for the different fasteners such as the SA194 Grade 7 Flat Washer and the prices.

 

Price List of ASTM A194 Grade 7 Nuts
ASTM A194 Grade 7 Nuts
Price
Factory price astm a194 grade 7 heavy hex nut
US$ 0.20-US$ 20.00 / Piece
Stock ASTM A194 GR 7 Heavy Hex Bolt
US$ 0.01-US$ 1.00 / Piece
astm a194 gr 7 heavy double hex nut m74
US$ 0.971-US$ 1.44 / Kilogram

 

Hardness Requirement of ASTM A194 Grade 7
Grade & Type Brinell Hardness Rockwell Hardness
C Scale B Scale
7 248-327 24 - 35 -

 

ASTM A194 Proof Load (Inch Series)
Nominal Size, inch Threads per inch Stress Area inch Proof Load, lbf
Grade 2H, 4, 7, 16
Heavy Hex Hex
1/4" 20 0.0316 4770 4300
5/16" 18 0.0524 7860 7070
3/8" 16 0.0774 11620 10460
7/16" 14 0.1063 15940 14350
1/2" 13 0.1419 21280 19160
9/16" 12 0.1820 27300 24570
5/8" 11 0.2260 33900 30510
3/4" 10 0.3340 50100 45090
7/8" 9 0.4620 69300 62370
1" 8 0.606 90900 81810
1 1/8" 8 0.7900 118500 106700
1 1/4" 8 1.0000 150000 135000
1 3/8" 8 1.2330 185000 166500
1 1/2" 8 1.492 223800 201400

 

Marking on ASTM A194 gr 7
Grade Type Hot Forged or Cold Punched Nuts Nuts Machined from Bar Stock
7 7 7B

 

ASME SA 194 Gr 7 Hex Nut Dimensions chart
ASME SA 194 Gr 7 Hex Nut Dimensions chart

**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

 

Specification Format Of SA 194 Grade 7 Nuts
Standards
Designation
ASTM
A194 Grade 7: 410 Stainless Steel, Quenched and Tempered..

 

Dimensions
ASME B18.2.1, B18.3
Melt Origin
South America/East Europe/Japan/Korea/
Product Origin
Made in India
Threads Configuration
ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads
Certification
Dual Certified As per ASTM & ASME Codes
Additional Certifications
PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Mandatory Requirements
Free from Mercury & Radioactive Contamination
Additional Requirements
NACE MR0103 / MR0175 / ISO 15156 Compliance

 

We Keep Bulk Stock of astm a194 grade 7l nuts at our stockyard, contact us to request a quote

 

astm a194 grade 7l nuts Size Chart
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.

 

Best Price & Fast Delivery of A194 Grade 7 Material, check SA 194 Grade 7 Nuts dimensions

 

Various Types Of A194 Grade 7 Material
ASTM A194 Gr 7 Nylock Insert Nut
ASTM A194 Grade 7 Nuts
ASTM A 194 Coupling Nut
ASTM A194 Square Nut
ASTM A194 Grade 7 Flange Nuts
A194 Grade 7 Hex Nut
SS Gr.7 Lock Nut
SS Gr.7 Heavy Hex Nuts
Stainless Steel Gr.7 T Nuts
ASTM A 194 Gr.7 Dome Nut
ISO Approved ASTM A194 Eye Nut
ASTM A 194 Gr.7 Nuts
ASTM A 194 Hex Nuts
A194 Grade 7 T But
ASTM A194 grade 7 temperature
Gr.7 Stainless Steel Washer
SA194 Nuts
Stainless Steel Gr.7 Panel Nut
ASTM A 194 Gr.7 Heavy Hex Nuts
ASTM A194 Locking Nuts
Stainless Steel Gr.7 Wing Nuts
ASTM A194 Grade 7 Panel Nut
ASTM A 194 Gr.7 Lock Nuts
Gr.7 Panel Nuts

 

ASTM A194 Gr 7 Heavy Hex Nuts Dimension standard
ASTM A194 Gr 7 Heavy Hex Nuts Dimension standard
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
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
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
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
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
4
4.0000
6-1/8
6.125
5.925
7.073
6.755
3-15/16
4.014
3.862

 

Buy High-Grade Quality from ASTM A194 Gr 7 Nuts Suppliers, view Grade 7 Nuts Specification

 

Yield Strength Of ASTM A194 Gr 7 Nuts

Nominal Size, In. Temperature °F Proof Load Stress, ksi Hardness Rockwell Material
1/4 - 4 1100 80 C38 Medium Carbon Alloy Steel, Quenched and Tempered

 

Chemical Analysis Of SA194 Grade 7 Flat Washer
Grade Material UNS
Number		 C, % Mn, % Ph, % S, % Si, % Cr, % Ni, % Mo, % Ti, % Cb & Ta, % N, % Other Elements, %
7 Type 4140, 4142, 4145, 4140H, 4142H, 4145H   0.37-0.49 0.65-1.10 0.035 0.040 0.15-0.35 0.75-1.2 - 0.15-0.25 - - - -

 

Specific size are available in SA194 Grade 7 Flat Washer at dealer price in India