ASTM A194 Grade 8 Nuts
Largest Manufacturer of SA 194 Gr 8 Heavy Hex Nuts in India, Available in Accurate Dimension
The specifications for ASTM A194 Grade 8 Heavy Hex Nuts include the parameters like standard, size, material, grade, thread, and finish. The chemical composition of this material contains carbon, manganese, sulphur, silicon, chromium, nickel etc. ASME SA 194 Gr 8 Nut has some excellent features like the design is rugged, the dimensions are accurate, durable, reliable, finish is fine and many more. Due to all these features, this is widely used in industrial applications. The strength becomes and also the ductility of A194 Gr8 Material increases due to the addition of molybdenum and lot more.
SA194 Gr 8mlcun nut is used in automotive industry and weighty-engineering industry. It has amazing corrosion resistance and the length of this is 3mm to 200mm. ASTM A194 Grade 8 Class 2 Hexagon nuts are cold shaped and hot produced. Many huge materials are used for manufacturing this and thus it is presented in the market.
The ASTM A194 Grade 8c Hex Nuts are available in form of hex nuts, heavy hex nuts and square nuts which is manufactured by using high tensile stainless steel 31 material. ASTM a194 Grade 8f Nuts is thus manufactured by Regal Sales Corporation as we are the oldest one. Since, 20 years we are in this field. We use high grade material for this product and also our delivery time is perfect.
ASTM A194 Grade 8 Heavy Hex Nuts
ASTM A194 Grade 8 Nuts
A194 Grade 8f Nuts
Table of Content
- What do you mean by ASTM A194 Grade 8 Nuts?
- Specifications of ASTM A194 Grade 8 Nuts
- Types of ASTM A194 Grade 8 Nuts
- Dimensions standard of ASME SA 194 Gr 8 Nut
- ASTM A194 B8C Heavy Hex Nuts Dimension
- SA 194 Gr 8 Nut Size Chart
- Torque Chart For ASTM A194 Grade 8 Metric Nuts
- SA 194 gr B8 ACME Hex Nuts Physical Properties
- Chemical Composition of ASME SA 194 Gr 8 Nut
- ASTM A194 Grade 8 Nuts Weight Chart
- Equivalent Grade of A194 Gr8 Nuts
- Mechanical Properties of ASTM A194 Grade 8 Nuts
- Delivery Time Table of Grade A194 Gr 8 Square Nuts
- Are ASTM A194 Grade 8 Nuts Compatible With All Bolts?
- What is the Difference Between ASTM A194 Grade 8 and Grade 8m Nuts?
- Can ASTM A194 Grade 8 Nuts Be Used With High-strength Bolts?
ASTM A194 Grade 8 Nuts is also known as Stainless steel alloy. These are basically intended for highly pressured or high temperatures applications. Unless it is specified by the American National Standard Heavy Hex Series. It required materials like carbon, alloy and stainless steel. This is then processed further for centreless grinding or by cold drawing. The sizes in which these are available start from the range ¼ through 4inches.
ASTM A194 Grade 8 Nuts Used in Petrochemical and Chemical Industries, Check Specification
ASTM A194 Grade 8 Nuts Sizes
- Metric Size: M10 - M110
- Imperial Sizes: 1/4''–1-1/2’’
- Length: 12 - 1200MM
Benefits
- High-Temperature Performance
- Durability and Longevity
- Strength and Toughness
- Non-Magnetic Properties
Certification
- MTC as per EN 10204 / 3.1B
- 100% Radiography Test Report
- Raw Materials Certificate
- Compliance Certificates
Neck type
- Hex, Square
- Knurled
- Triangular
- Oval
Production process
- Cold Forging
- Hot Forging
- Machining and CNC
- Customized
Surface Coating
- Teflon, Xylan, Zinc
- Black Oxide
- Cadmium, Galvanized
- Others Upon Request
Threads Types
- BSF, UNC
- BSW
- METRIC
- UNF
Head Types
- Hex, Square
- Round,Flat
- Hex flange
- T-head & Triangular
Finishing
- Hot Dip Galvanised (HDG), Geometry, Dacroment
- Zinc , black oxide, BZP
- Anodizing, nickel plated, plated zinc-nickel
Cutting Methods
- Hacksaw
- Angle Grinder
- Threaded Rod Cutter
Disadvantages
- Limited Strength in Extreme Loads
- Susceptibility to Galling
- Higher Cost
Documentation
- Guarantee Letter
- Fumigation Certificates
- Raw Material Test Reports
Applications
- Marine environments
- Power Generation
- Petrochemical plants
- Oil and Gas Industry
Packaging Methods
- Small Pack
- Corrugated Box
- Pallet
- Carton
Testing Methods
- Hardness Testing
- Tensile Testing
- Corrosion Testing
- Impact Testing
ASTM A194 Grade 8 Nuts Supplier in India offers a diverse range of commonly used fasteners types
ASTM A194 Grade 8 Nuts
SA 194 Grade 8 Hex Nut
Astm A194 Grade 8 Lock Nut
A194 Grade 8 Coupling Nut
ASME SA194 Gr 8 Nylock Nuts
A194 Grade 8 Flange Nuts
ASTM A194 8 Square Nuts
Gr 8 J Wing Nuts
Check Best Quality of ASME SA 194 Gr 8 Hex Nuts With Various Surface Finishes and Hardness
| Nominal Size Diameter | F | G | H | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Width Across Flats |
Width Across Corners |
Thickness | |||||||
| Basic | Min | Max | Min | Max | Basic | Min | Max | ||
| 7/16 | .4375 | 11/16 | .675 | .688 | .768 | .794 | 3/8 | .365 | .385 |
| 9/16 | .5625 | 7/8 | .861 | .875 | .982 | 1.010 | 31/64 | .473 | .496 |
| 5/16 | .3125 | 1/2 | .489 | .500 | .557 | .577 | 17/64 | .258 | .273 |
| 3/8 | .3750 | 9/16 | .551 | .562 | .628 | .650 | 21/64 | .479 | .337 |
| 5/8 | .6250 | 15/16 | .922 | .938 | 1.051 | 1.083 | 35/64 | .535 | .559 |
| 1-1/8 | 1.1250 | 1-11/16 | 1.631 | 1.688 | 1.859 | 1.949 | 31/32 | .939 | .999 |
| 7/8 | .8750 | 1-5/16 | 1.269 | 1.312 | 1.447 | 1.516 | 3/4 | .724 | .776 |
| 1 | 1.0000 | 1-1/2 | 1.450 | 1.500 | 1.653 | 1.732 | 55/64 | .831 | .887 |
| 1-1/2 | 1.500 | 2-1/4 | 2.175 | 2.250 | 2.480 | 2.598 | 1-9/32 | 1.245 | 1.ASTM A194 GR. 8 |
| 2 | 2.0000 | 3 | 2.900 | 3.000 | 3.306 | 3.464 | 1-23/32 | 1.675 | 1.763 |
| 1-5/8 | 1.6250 | 2-7/16 | 2.356 | 2.438 | 2.686 | 2.815 | 1-25/64 | 1.353 | 1.429 |
| 1-3/4 | 1.7500 | 2-5/8 | 2.538 | 2.625 | 2.893 | 3.031 | 1-1/2 | 1.460 | 1.540 |
| 2-1/2 | 2.5000 | 3-3/4 | 3.625 | 3.750 | 4.133 | 4.330 | 2-5/32 | 2.105 | 2.209 |
| 2-3/4 | 2.7500 | 4-1/8 | 3.988 | 4.125 | 4.546 | 4.763 | 2-3/8 | 2.319 | 2.431 |
| Nominal Size For Thread Diam | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 9/16 | 5/8 | 3/4 | 7/8 | 1 | 1-1/8 | 1-3/8 | 1-1/2 | 1-5/8 | 1-3/4 |
2 | 2-1/4 | 2-1/2 | 2-3/4 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.25 | 0.3125 | 0.375 | 0.4375 | 0.5 | 0.5625 | 0.625 | 0.75 | 0.875 | 1 | 1.125 | 1.375 | 1.5 | 1.625 | 1.75 | 2 | 2.25 | 2.5 | 2.75 | |||
| F | Width Of Across Flats | Basic | 7/16 | 1/2 | 9/16 | 11/16 | 3/4 | 7/8 | 15/16 | 1-1/8 | 1-5/16 | 1-1/2 | 1-11/16 | 2-1/16 |
2-1/4 | 2-7/16 | 2-5/8 | 3 | 3-3/8 | 3-3/4 | 4-1/8 |
| Max | 0.438 | 0.5 | 0.562 | 0.688 | 0.75 | 0.875 | 0.938 | 1.125 | 1.312 | 1.5 | 1.688 | 2.062 | 2.25 | 2.438 | 2.625 | 3 | 3.375 | 3.75 | 4.125 | ||
| Mini | 0.428 | 0.489 | 0.551 | 0.675 | 0.736 | 0.861 | 0.922 | 1.088 | 1.269 | 1.45 | 1.631 | 1.994 | 2.175 | 2.356 | 2.538 | 2.9 | 3.263 | 3.625 | 3.988 | ||
| G | Width Of Across Corners | Max | 0.505 | 0.577 | 0.65 | 0.794 | 0.866 | 1.01 | 1.083 | 1.299 | 1.516 | 1.732 | 1.949 | 2.382 | 2.598 | 2.815 | 3.031 | 3.464 | 3.897 | 4.33 | 4.763 |
| Mini | 0.488 | 0.557 | 0.628 | 0.768 | 0.84 | 0.982 | 1.051 | 1.24 | 1.447 | 1.653 | 1.859 | 2.273 | 2.48 | 2.686 | 2.893 | 3.306 | 3.719 | 4.133 | 4.546 | ||
| H | Thickness | Basic | 7/32 | 17/64 | 21/64 | 3/8 | 7/16 | 31/64 | 35/64 | 41/64 | 3/4 | 55/64 | 31/32 | 1-11/64 | 1-9/32 | 1-25/64 | 1-25/64 | 1-23/32 | 1-15/16 | 2-5/32 | 2-3/8 |
| Max | 0.226 | 0.273 | 0.337 | 0.385 | 0.448 | 0.496 | 0.559 | 0.665 | 0.776 | 0.887 | 0.999 | 1.206 | 1.ASTM A194 GR. 8 | 1.429 | 1.54 | 1.763 | 1.986 | 2.209 | 2.431 | ||
| Mini | 0.212 | 0.258 | 0.479 | 0.365 | 0.427 | 0.473 | 0.535 | 0.617 | 0.724 | 0.831 | 0.939 | 1.138 | 1.245 | 1.353 | 1.46 | 1.675 | 1.89 | 2.105 | 2.319 | ||
| Nominal Size | D Body Diameter |
A Head Diameter |
H Head Height |
S Head SideHeight |
T KeyEngagmt |
G WallThkns |
K Chamfer orRadius |
||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Max | Min | Max | Min | Max | Min | Max | Min | Min | Max | ||
| 0 | 0.0600 | 0.0600 | 0.0568 | 0.096 | 0.091 | 0.060 | 0.057 | 0.054 | 0.025 | 0.020 | 0.003 |
| 1 | 0.0730 | 0.0730 | 0.0695 | 0.118 | 0.112 | 0.073 | 0.070 | 0.066 | 0.031 | 0.025 | 0.003 |
| 2 | 0.0860 | 0.0860 | 0.0822 | 0.140 | 0.134 | 0.086 | 0.083 | 0.077 | 0.038 | 0.029 | 0.003 |
| 3 | 0.0990 | 0.0990 | 0.0949 | 0.161 | 0.154 | 0.099 | 0.095 | 0.089 | 0.044 | 0.034 | 0.003 |
| 4 | 0.1120 | 0.1120 | 0.1075 | 0.183 | 0.176 | 0.112 | 0.108 | 0.101 | 0.051 | 0.038 | 0.005 |
| 5 | 0.1250 | 0.1250 | 0.1202 | 0.205 | 0.198 | 0.125 | 0.121 | 0.112 | 0.057 | 0.043 | 0.005 |
| 6 | 0.1380 | 0.1380 | 0.1329 | 0.226 | 0.218 | 0.138 | 0.134 | 0.124 | 0.064 | 0.047 | 0.005 |
| 8 | 0.1640 | 0.1640 | 0.1585 | 0.270 | 0.262 | 0.164 | 0.159 | 0.148 | 0.077 | 0.056 | 0.005 |
| 10 | 0.1900 | 0.1900 | 0.1840 | 0.312 | 0.303 | 0.190 | 0.185 | 0.171 | 0.090 | 0.065 | 0.005 |
| 1/4 | 0.2500 | 0.2500 | 0.2435 | 0.375 | 0.365 | 0.250 | 0.244 | 0.225 | 0.120 | 0.095 | 0.008 |
| 5/16 | 0.3125 | 0.3125 | 0.3053 | 0.469 | 0.457 | 0.312 | 0.306 | 0.281 | 0.151 | 0.119 | 0.008 |
| 3/8 | 0.3750 | 0.3750 | 0.3678 | 0.562 | 0.550 | 0.375 | 0.368 | 0.337 | 0.182 | 0.143 | 0.008 |
| 7/16 | 0.4375 | 0.4375 | 0.4294 | 0.656 | 0.642 | 0.438 | 0.430 | 0.394 | 0.213 | 0.166 | 0.010 |
| 1/2 | 0.5000 | 0.5000 | 0.4919 | 0.750 | 0.735 | 0.500 | 0.492 | 0.450 | 0.245 | 0.190 | 0.010 |
| 5/8 | 0.6250 | 0.6250 | 0.6163 | 0.938 | 0.921 | 0.625 | 0.616 | 0.562 | 0.307 | 0.238 | 0.010 |
| 3/4 | 0.7500 | 0.7500 | 0.7406 | 1.125 | 1.107 | 0.750 | 0.740 | 0.675 | 0.370 | 0.285 | 0.010 |
| 7/8 | 0.8750 | 0.8750 | 0.8647 | 1.312 | 1.293 | 0.875 | 0.864 | 0.787 | 0.432 | 0.333 | 0.015 |
| 1 | 1.0000 | 1.0000 | 0.9886 | 1,500 | 1.479 | 1,000 | 0.988 | 0.900 | 0.495 | 0.380 | 0.015 |
Stockist of SA 194 Gr 8 Heavy Hex Jam Nuts with Excellent Mechanical Properties
Tensile Strength
550 MPa
Yield Strength
240 MPa
Elongation
30%
Melting Point
1371°C to 1400°C
ASTM A194 Grade 8 Nuts Manufacturer in India offers a torque chart for fasteners
| Nut Size (Metric) | Thread Pitch (mm) | Torque (Nm) |
|---|---|---|
| M6 | 1.0 | 10–12 |
| M8 | 1.25 | 25–30 |
| M10 | 1.5 | 50–60 |
| M12 | 1.75 | 85–100 |
| M16 | 2.0 | 210–250 |
| M20 | 2.5 | 400–500 |
| M24 | 3.0 | 700–850 |
| M30 | 3.5 | 1400–1700 |
| M36 | 4.0 | 2400–2900 |
ASTM A194 Grade 8 Nuts Manufacturer in India offers fasteners with improved physical properties
| Property | Typical Value |
|---|---|
| Density | 7.9 g/cm³ (0.286 lb/in³) |
| Thermal Conductivity | ~16.3 W/m·K (at 100°C) |
| Specific Heat | 500 J/kg·K |
| Electrical Resistivity | ~720 nΩ·m at 20°C |
| Elastic Modulus | ~193 GPa |
Find ASTM A194 Grade 8 Hexagon Nuts With 7.85 g/cm³ Density, Check Chemical Composition
| Nominal Size | Thread Pitch (TPI) | Weight per Piece (kg) | Weight per Piece (lbs) |
|---|---|---|---|
| 1/4" | 20 | 0.008 | 0.018 |
| 5/16" | 18 | 0.013 | 0.029 |
| 3/8" | 16 | 0.021 | 0.046 |
| 7/16" | 14 | 0.031 | 0.068 |
| 1/2" | 13 | 0.048 | 0.106 |
| 5/8" | 11 | 0.096 | 0.212 |
| 3/4" | 10 | 0.160 | 0.353 |
| 7/8" | 9 | 0.250 | 0.551 |
| 1" | 8 | 0.366 | 0.807 |
| 1-1/8" | 7 | 0.512 | 1.129 |
| 1-1/4" | 7 | 0.708 | 1.561 |
| 1-3/8" | 6 | 0.932 | 2.054 |
| 1-1/2" | 6 | 1.220 | 2.690 |
| Grade | Country | 304 | 304 L | 310 | 316 | 316 L | 410 | 431 |
|---|---|---|---|---|---|---|---|---|
| ASTM | America | ASTM A 193 Gr B8 | ASTM A 320 Ge B8 | ASTM A 479 | ASTM A 193 Gr B8T | ASTM A 320 Ge B8T | ||
| UNS | North America | S30400 | S30403 | S31000 | S31600 | S31603 | S41000 | S43100 |
| EN | European | 1.4301 | 1.4306 | 1.4841 | 1.4401 | 1.4404 | 1.4006 | 1.4057 |
| BS | British | BS 970 | BS 970 | BS 970 | BS 970 | BS 970 | BS 970 | BS 970 |
| DIN | German | X 5CrNi1810 | X 2CrNi1911 | X 12 CrNi 25 21 | X 5 CrNiMo 17 13 2 | X 2 CrNiMo 17 13 2 | X 10Cr13 | X 20CrNi172 |
| Country Name | Delivery Time |
|---|---|
| Oman | |
| Singapore | |
| Saudi Arabia | |
| UAE | |
| Malaysia | |
| Egypt | |
| Turkey | |
| Jordan | |
| South Africa |
| No, ASTM A194 Grade 8 nuts are not compatible with all bolts | |
|---|---|
| Aspect | Compatibility |
| Material | Stainless steel bolts (e.g., ASTM A193 B8). |
| Strength | Match with equivalent or higher-strength bolts. |
| Threads | Must match thread type and size. |
| Temperature | High-temperature, high-pressure applications. |
| Ideal Pairings | ASTM A193 B8, B8M; avoid dissimilar metals. |
| Feature | Grade 8 | Grade 8M |
|---|---|---|
| Material | Type 304 stainless steel | Type 316 stainless steel |
| Corrosion Resistance | Good for most environments, not ideal for saltwater | Superior, ideal for marine & salty environments |
| Applications | High-pressure, high-temperature (petrochemical, power) | Marine, chemical processing, coastal areas |
| Cost | Less expensive | More expensive due to Type 316 |
| Strength | Similar to Grade 8M | Similar strength, better corrosion resistance |
- ➤Yes, compatible with high-strength bolts.
- ➤Match strength (e.g., Grade 8 nuts with B8 bolts).
- ➤Use stainless steel (e.g., Type 304).
- ➤Ensure suitability for pressure and temperature requirements.