What are Grade 8 Hex Nuts?
A hex nut is a six-sided, internally threaded fastener. The term "grade 8" refers to the strength & hardness of the nut material. Specifically, SS Grade 8 Hex Nuts are made from high-strength steel alloy & are heat-treated to increase their hardness and resistance to wear & tear. ASTM A194 Grade 8 Hex Nuts are heat treated to provide greater strength. These nuts are designed for use with Grade 8 cap screws and have a proof load of at least greater than the minimum tensile strength of the bolt. These nuts are used in heavy industries like heavy machinery, mining, tractors & trucking.
Asiad Steels is one of the well-known exporters & manufacturers of ASTM A194 GR.8 Stainless Steel Hex Nuts, which has many outstanding features to provide as Non-corrosive, Dimensional accuracy, Lightweight, Longer life, Sturdy design, Easy to use, & more. They are rated to have a minimum tensile strength of 150,000 pounds per square inch and can be used in high-stress applications where reliability and durability are important. They are commonly used in construction, manufacturing, and automotive applications, among others. There are several grades available like ASTM A194 GR.8C Hex Nuts, ASTM A194 GR.8M Hex Nuts, etc.
ASTM A194 GR.8 hex nuts, ASTM A194 heavy hex nuts, Hex Nuts, GR.8 lock nut, SS ASTM A194 self locking nuts, Grade 8 Hex Nuts, High Tensile Fasteners, 8.8 grade hex bolts and nuts, a4-80 316 hex flange nut, 8.8 grade hex nuts custom, Grade 8 Nut, Check ASTM A194 Gr. 8 Nut Price List, ASTM A194 GR.8 nylon insert nut, Supplier & Exporter
Our huge industry knowledge of supplying, exporting, and manufacturing has allowed us to provide a wide range of ASME SA 194 GR.8 SS Lock Nuts that are being used in instrumentation, heat exchangers, & so on. Our offered ASME SA 194 GR.8 SS Heavy Hex Nuts are mass-produced from higher quality material & prominent methods under the direction of our experts. The austenitic ASME SA 194 GR.8 SS Hex Nuts are also well-thought-out to be the most weldable of the soaring stainless steels that can be welded by resistance welding & all fusion methods. We also manufacture ASTM A194 GR.8MLCUN Hex Nuts.

ASTM A194 GR8 HEX NUTS

ASTM A194 GR8 HEAVY HEX NUTS

ASTM A194 GR8 LOCK NUTS
These ASTM A194 GR.8 Stainless Steel Coupler Nuts are made-up using premium quality alloys that are being made by reputed specialists in the market. Because of the rugged construction, accurate dimensions, longer serviceable life, & high corrosion resistance, these ASTM A194 GR.8 Stainless Steel Nylon Insert Nuts are extensively much-admired. These ASTM A194 GR.8 Stainless Steel Self-Locking Nuts are strictly considered using graded alloy & cutting-edge tools. We are well-thought-out as a professional in rendering a huge range of ASTM A194 GR.8 Stainless Steel Lock Nuts to our customers. Appealing to the services of our specialists, we are engaged in offering these ASTM A194 GR.8 Stainless Steel Heavy Hex Nuts. Meanwhile, buy Stainless Steel Nuts at reasonable rates from us.
- Where are Grade 8 Stainless Steel Hex Nuts used?
- Petroleum and oil and gas industries utilize grade 8 hex nuts. Available in duplex/super duplex, high strength alloy steel, stainless steel, and exotic materials; fully certified, and lot traceable.
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What is a Grade 8 Hex Nut?
ASTM A194 GR.8 Nylon Insert Nut, Gr 8 Fasteners, SS ASTM A194 GR.8 coupler nuts, GR.8 SS Wing Nut, ASTM A194 Gr. 8 Hex Nut Price List, a194 8m heavy hex nuts manufacturers, 8 grade hex nuts, 8 grade ms hex nuts, Grade 8 Nut Hardness, ASTM A194 Grade 8 Heavy Hex Nuts, 8 grade hex nut, 8 steel hex bolt and nut, ASTM A194 GR.8 hex nuts, heavy hex nuts Manufacturer & Stockist
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ASTM A194 GR.8 Hex Nuts Specification
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MaterialSpecification
Standards Size
LengthASTM A194 GR.8 Hex Nut
IS
BS
ASTM
DIN, ISO, JIS, GB, IS, BS, ASTM M 02 to M 160
3 mm to 200 mm
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ASTM A194 GR.8 Hex Nuts Chemical Composition
-
Element ASTM A194 GR.8 Carbon 0.08 max Manganese 2.00 Max Phosphorus, max 0.05% Sulfur, max 0.03% Silicon 1.00% max Chromium 18.0-20.0% Nickel 8.0-11.0% Molybdenum - -
ASTM A194 GR.8 Hex Nut Mechanical Properties
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Tensile Strength/Ultimate Tensile Stress (UTS) – (Mpa) 550 Yield Strength/Proof Stress(0.2% Offset) (YS) – (Mpa) 240 Elongation in 4D (El) 30 Reduction 40 Hardness – (BHN) 223
ASTM A194 GR.8 Fasteners Price
- ASTM A194 Grade 8 Socket Head Cap Screw
Price $5.59–$258.50 - ASTM A194 Grade 8 Plow Bolt, Plain, 5/8-11×2, Gr 5, PK25
Price $30.65 / pkg. of 25 - ASTM A194 Grade 8 Structural Bolt, 1/2-13×1 1/2L, PK25
Price $13.21 / pkg. of 25 - ASTM A194 Grade 8 U bolts, with 5/16 Thread, Zinc Finish
Price $3.71–$7.25 - ASTM A194 Grade 8 Hex Nut, SS, Gr SS304,3/8-16, Plain, PK50
Price $12.13 / pkg. of 50 - ASTM A194 Grade 8 Hex Lag Screw, 3/8×2 1/2 In L, PK50
Price $19.79 / pkg. of 50 - ASTM A194 Grade 8 Flat Washer
Price $0.09–$5.97
ASTM A194 Grade 8 Nut Dimensions
Nominal Size Of Thread Diameter | F | G | H | ||||||
Across Flats Width |
Across Corners Width |
Thickness Row | |||||||
Basic | Maximum | Minimum | Maximum | Minimum | Basic | Maximum | Minimum | ||
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 |
ASTM A194 GR.8 Nuts Application Area
Our products range of ASTM A194 GR.8 Hex Nut find application in various areas such as: Pumps, Civil Industries, Hydro or Thermal), power Generation Units ( Nuclear, Civil Construction Industries, Vessels, Oil Expansion Projects, Fertilizer Plants, Valves, Petro-Chemical Industries, Heavy Engineering Industries, Ship Building Industries, Steel Plants, Off Shore & On Shore Oil Towers, Home Fittings, Railways etc
ASTM A194 Grade 8 Heavy Hex Nuts Dimensions
Nominal Size For Thread Diameter |
F |
G |
H |
||||||
Width Of Across Flats |
Width Of Across Corners |
Thickness Table |
|||||||
Basic |
Maximum |
Minimum |
Maximum |
Minimum |
Basic |
Maximum |
Minimum |
||
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 |
Astm A194 Gr. 8M Hex Nuts Dimensions
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
|
8M/16
|
.438M
|
.428M
|
.505
|
.48M8M
|
8M/32
|
.226
|
.212
|
5/16
|
.3125
|
1/2
|
.500
|
.48M9
|
.58M8M
|
.558M
|
18M/64
|
.28M3
|
.258M
|
3/8M
|
.38M50
|
9/16
|
.562
|
.551
|
.650
|
.628M
|
21/64
|
.338M
|
.48M9
|
8M/16
|
.438M5
|
11/16
|
.68M8M
|
.68M5
|
.8M94
|
.8M68M
|
3/8M
|
.38M5
|
.365
|
1/2
|
.5000
|
3/4
|
.8M50
|
.8M36
|
.8M66
|
.8M40
|
8M/16
|
.448M
|
.428M
|
9/16
|
.5625
|
8M/8M
|
.8M8M5
|
.8M61
|
1.010
|
.98M2
|
31/64
|
.496
|
.48M3
|
5/8M
|
.6250
|
15/16
|
.938M
|
.922
|
1.08M3
|
1.051
|
35/64
|
.559
|
.535
|
3/4
|
.8M500
|
1-1/8M
|
1.125
|
1.08M8M
|
1.299
|
1.240
|
41/64
|
.665
|
.618M
|
8M/8M
|
.8M8M50
|
1-5/16
|
1.312
|
1.269
|
1.516
|
1.448M
|
3/4
|
.8M8M6
|
.8M24
|
1
|
1.0000
|
1-1/2
|
1.500
|
1.450
|
1.8M32
|
1.653
|
55/64
|
.8M8M8M
|
.8M31
|
1-1/8M
|
1.1250
|
1-11/16
|
1.68M8M
|
1.631
|
1.949
|
1.8M59
|
31/32
|
.999
|
.939
|
1-3/8M
|
1.38M50
|
2-1/16
|
2.062
|
1.994
|
2.38M2
|
2.28M3
|
1-11/64
|
1.206
|
1.138M
|
1-1/2
|
1.500
|
2-1/4
|
2.250
|
2.18M5
|
2.598M
|
2.48M0
|
1-9/32
|
1.ASTM A194 GR. 8M
|
1.245
|
1-5/8M
|
1.6250
|
2-8M/16
|
2.438M
|
2.356
|
2.8M15
|
2.68M6
|
1-25/64
|
1.429
|
1.353
|
1-3/4
|
1.8M500
|
2-5/8M
|
2.625
|
2.538M
|
3.031
|
2.8M93
|
1-1/2
|
1.540
|
1.460
|
2
|
2.0000
|
3
|
3.000
|
2.900
|
3.464
|
3.306
|
1-23/32
|
1.8M63
|
1.68M5
|
2-1/4
|
2.2500
|
3-3/8M
|
3.38M5
|
3.263
|
3.8M98M
|
3.8M19
|
1-15/16
|
1.98M6
|
1.8M90
|
2-1/2
|
2.5000
|
3-3/4
|
3.8M50
|
3.625
|
4.330
|
4.133
|
2-5/32
|
2.209
|
2.105
|
2-3/4
|
2.8M500
|
4-1/8M
|
4.125
|
3.98M8M
|
4.8M63
|
4.546
|
2-3/8M
|
2.431
|
2.319
|
Size Chart Of Astm A194 8M Nuts
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
|
1.8M
|
4
|
4
|
8M
|
3.2
|
2.2
|
5
|
5
|
8M
|
4
|
2.8M
|
5
|
6
|
10
|
5
|
3.2
|
6
|
8M
|
11
|
5.5
|
3.5
|
–
|
8M
|
13
|
6.5
|
4
|
8M
|
10
|
18M
|
8M
|
5
|
10
|
12
|
19
|
10
|
6
|
12
|
14
|
22
|
11
|
8M
|
14
|
16
|
24
|
13
|
8M
|
16
|
18M
|
28M
|
15
|
9
|
18M.5
|
20
|
30
|
16
|
10
|
20
|
* This is the diameter across the flats. It is also the size of wrench to use.
|
Ready Stock Of ASTM A194 Grade 8M Nuts
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Application Of A194 Grade 8M Fasteners
- Pharmaceuticals
- Off-Shore Oil Drilling Companies
- Heat Exchangers
- Power Generation
- Aircraft Exhaust Manifolds
- Sea Water Equipment
- Specialty Chemicals
- Gas Processing
- Pharmaceutical Equipment
- Spiral Welded tube for burner pipes and flues
- Petrochemicals
Other Types Of ASTM A194 GR.8 Fasteners
ASTM A194 GR.8 Hex Nut | SS ASTM A194 GR.8 Hex Nuts |
Stainless Steel GR.8 Nuts | ASTM A194 GR.8 heavy hex nuts Supplier |
ASTM A194 Grade 8 lock nut Supplier | GR.8 self locking nuts |
Grade 8 nylon insert nut | ASTM A194 Grade 8 coupler nuts Manufacturer |
Stainless Steel GR.8 Hex Nuts | SS ASTM A194 Grade 8 Cap Nut |
ASTM A194 GR.8 Serrated Flange Nut Exporter | ISO Certified GR.8 Flange Lock Nut |
ASTM A194 GR.8 Nylon Lock Nut | ASTM A194 Slotted Nut Manufacturer |
GR.8 Stainless Steel 2 Way Lock Nut | ASTM A194 GR.8 Custom Nut |
ASTM A194 Acorn Nut Exporter | GR.8 Wing Nut Stockist |
ASTM A194 Grade 8 Custom Nut | ASTM A194 Grade 8 Jam Nut |
ASTM A194 T Nuts | Grade 8 Flex Lock Nut Exporter |
ASTM A194 GR.8 High Nut Supplier | Grade 8 K Lock Nut Distributor |
a194 8 heavy hex nuts | grade 8 hex nuts manufacturers |
grade 8 hex nuts suppliers | a194 8 heavy hex nuts manufacturers |
a194 8 heavy hex nuts suppliers | a286 heavy hex nuts |
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- We are Exporter of ASTM A194 GR.8 Hex Nut in Worldwide Such as India, China, Venezuela, Ecuador, Russia, Malaysia, Argentina, Romania, Italy, South Korea, Chile, Taiwan, Belarus, Chile, Australia, Kuwait, Austria, Israel, Netherlands, Nigeria, Vietnam, Ukraine, Sri Lanka, Thailand, Belgium, Costa Rica, Macau, Bolivia, Spain, Slovakia, Serbia, France, Ghana, Croatia, Switzerland, Bangladesh, United Kingdom, Bhutan, Kenya, Iran, Denmark, Gambia, Ireland, Lithuania, Trinidad & Tobago,Tunisia, South Africa, Yemen, Nigeria, Sweden, Turkey, Bulgaria, India, United Arab Emirates, Canada, Hungary, Namibia, Iraq, Gabon, Iran, United States, Estonia, Tibet, Mexico, Egypt, Nepal, Afghanistan, Qatar, Singapore, Japan, Saudi Arabia, Pakistan, Poland, Hong Kong, Puerto Rico, Bahrain, Oman, Indonesia, Lebanon, Mongolia, Colombia, Jordan, Peru, New Zealand, Portugal, Morocco, Greece, Finland, Philippines, Mexico, Brazil, Zimbabwe, Czech Republic, Norway, Kazakhstan, Azerbaijan, Libya, Algeria, Germany, Poland, Angola.
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We are Supplier of Fasteners in India
- We are Suppliers of ASTM A194 Grade 8 Hex Nuts in India Such as Mumbai, Navi Mumbai, Milan, Hong Kong, Sharjah, Vadodara, Seoul, Vung Tau, Mexico City, Dallas, Jeddah, Bangkok, Tehran, Ankara, New Delhi, Madrid, Noida, Mumbai, Los Angeles, Riyadh, New York, Dammam, Karachi, La Victoria, Port-of-Spain, Aberdeen, Caracas, Gimhae-si, Hyderabad, Lagos, Petaling Jaya, Kolkata, Nashik, Jamshedpur, Al Jubail, Doha, Secunderabad, Faridabad, Thane, Kuala Lumpur, Haryana, Ulsan, Atyrau, Muscat, Ernakulam, Coimbatore, Bogota, Ho Chi Minh City, Ahmedabad, Sydney, Indore, Algiers, Moscow, Pune, Baroda, Calgary, Perth, Manama, Granada, Rio de Janeiro, Toronto, Bhopal, Thiruvananthapuram, Cairo, Abu Dhabi, Kuwait City, Brisbane, Lahore, Ahvaz, London, Howrah, Courbevoie, Ludhiana, Kanpur, Chandigarh, Houston, Edmonton, Geoje-si, Ranchi, Colombo, Surat, Al Khobar, Pimpri-Chinchwad, Bengaluru, Gurgaon, Hanoi, Visakhapatnam, Dubai, Nagpur, Istanbul, Montreal, Jakarta, Jaipur, Singapore, Melbourne, Busan, Santiago, Chennai, Rajkot, Chiyoda.