ASTM A194 Grade 7m Nuts
Specification
CHEMICAL & MECHANICAL COMPOSITION
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Manufacturer of Fully heat-treated SA 194 7m Hex, Lock and Square Nut for heavy duty
ASTM a194 grade 7 mechanical properties, ASTM A194 Specification, ASTM a194 grade 7 yield strength, ASTM A194 Grade 7 Specification, ASTM A194 Grade 7 Heavy Hex Nuts
Detailed Information
The ASTM Al94 7M specification is for heat-treated chromium molybdenum alloy steel high tensile nuts and inner threaded fasteners. A combination of hot forging, cold forging, machining, and heat treatment can be used to create AI947M. High temperatures and pressures make use of it. Due to its high temperature and tensile strength and corrosion resistance, for instance, it is used in the oil and gas, energy, construction, and automotive industries. Nuts meeting ASTM A194 Grade 7m specifications have an internal thread. It is used in conjunction with a correspondingly sized mating bolt. There are many different forms of it, including flange nuts, coupling nuts, slotted nuts, wheel nuts, T-nuts, barrel nuts, etc. Usually, a temperature differential can suggest thermal exhaustion.
A six-sided nut, ASTM A194 7M Hex Nuts. It is utilised with anchor shackles, bolts, screws, and other externally threaded components. It is used to join both wood and metal pieces to stop movement and strain along with these other fasteners. It is functional at temperatures as high as 1150 °C. The addition of various significant alloying elements can increase its longevity and guarantee good performance across a wide temperature range of applications.
ASTM A194 7M specification is for inner threaded fasteners and for high tensile nuts which are made from heat treated chromium molybdenum alloy steel. A194 7M can be produced by the method of hot forging, cold forging and machining followed by heat treatment. It is useful for high temperature and pressure. For example oil and gas, energy, construction and the automotive industries due to its high-temperature and tensile strength and corrosion resistance. ASTM A194 Grade 7m Nuts is a fastener with an internal thread. It is utilized in conjunction with a mating bolt of similar size. It comes in various types such as flange nut, coupling nut, slotted nut, wheel nut, T-nut, barrel nut, etc. It can usually reveal thermal fatigue due to difference in temperature.
ASTM A194 7M Hex Nuts is a six‑sided nut. It is used with bolts, screws, anchor shackles, and other externally threaded elements. In conjunction with these other fasteners, it is used to connect both wood and metal elements to prevent movement and tension. It can be used in temperatures up to 1150°C. Its durability can be achieved by the addition of several important alloying elements to ensure superior performance across a broad range for high temperature applications.
ASTM A194 Grade 7m Nuts Specifications
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ASTM A194 Grade 7m Nut Size Metric |
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ASTM A194 Grade 7m Hex Nut Size Inch |
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Direction of Thread |
Right hand |
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A194 7M Nuts Sizes |
Manufacturing M5, M36, M12, M33, M27, M45, M3.5, M10, M2, M4, M3, M22, M30, M42, M24, M6, M20, M8, M14, M16, M18, M48 to M160 and Custom Metric ASTM A194 Grade 7m Nuts |
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Height of A194 7M Nuts |
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Surface Finish & Coating of ASTM A194 Grade 7m Nuts |
Sherardized, black oxide, Dacroment, Nickel plated, Anodizing, Bright Zinc Plated (BZP), Self-Colour, Geometry, Plated zinc-nickel, Zinc, Hot Dip Galvanised (HDG), Stainless Steel Passivated |
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Standard |
Manufacturer of ASTM A194 Grade 7m Nuts as per DIN, UNI, PN, EU, ASME, ISO, ASTM, IS, BS, ANSI, JIS, GB, CSN, IFI, and all International Standards
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ASTM A194 Grade 7m Nuts Length |
3 mm to 200 mm |
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Material Origin |
ASTM A194 Grade 7m Nuts are Western European. Eastern origin possible on request. |
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Quenched & tempered alloy steel 7M Nuts types |
Custom Nuts Castle Nut, Wing Nut, High Tensile Heavy Hex Nuts, 2 Way Lock Nut, Slotted Nut, U Nuts, Flange Lock Nut, Heavy Hex Nuts, Square Nut, Lock Nut, Cage Nuts, Jam Nut, Nuts, K Lock Nut, Hex Weld Nuts, T Nuts, Dome Head Nuts, Cap Nut, Insert Nuts, Flange Nuts, Captive Nuts, Weld Nuts, Eye Nuts, Nylon Insert Nut, Flex Lock Nut, Dowel Nuts, Dome Nuts, Self Locking Nuts, Rivet Nuts, Hex Rivet Nuts, Coupler Nuts, Lug Nuts, High Crown Acorn Nuts, Half Nuts, Wheel Nuts, Hex Nuts |
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MOQ |
5 pieces |
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Preferred A194 7M Nut Drawing Formats |
JPEG, PDF, CAD, STP, IGS |
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Ask for Test Certificates from ASTM A194 Grade 7m Nuts manufacturers |
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Chemical Compatibility Of A194 7M Nut
| Element Alloy | Grade 7 and Grade 7M (AISI 4140) |
| Carbon (C) | 0.37 – 0.49% |
| Manganese | 0.65 – 1.10% |
| Sulfur, maximum | 0.040% |
| Silicon (Si) | 0.15 – 0.35% |
| Chromium (Cr) | 0.75 – 1.20% |
| Phosphorus, maximum | 0.035% |
| Nickel (Ni) | – |
| Molybdenum | 0.15 – 0.25% |
Mechanical Strength Table Of ASTM A194 Grade 7m Hex Nuts
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Specification |
Material |
Nominal Size Range, Inch |
Tempering Temp. °F |
Proof Load Stress, ksi |
Hardness Rockwell |
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Minimum |
Maximum |
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ASTM A194 Grade 7M |
Medium Carbon Alloy Steel, Q&T, Quenched and Tempered |
1/4 – 4 |
1150 |
150 |
159 |
237 |
ASTM A194 Grade 7M
| 7M |  |
Carbon steel Hex Nut, Heavy hex nut |
A194 Grade 7m Hex Nuts Dimensions
Quenched & tempered alloy steel 7M Heavy Hex Nut Dimensions in mm
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ISO A194 7M Hex Nut NB |
Across Corners |
MAX Thickness |
MIN Thickness |
MAX Across Flats |
MIN Across Flats |
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M 8 |
14.38 |
6.8 |
6.44 |
13 |
12.73 |
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M 10 |
17.77 |
8.4 |
8.04 |
16 |
15.73 |
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M 12 |
20.03 |
10.8 |
10.37 |
18 |
17.73 |
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M 14 |
23.35 |
12.8 |
12.1 |
21 |
20.67 |
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M 16 |
26.75 |
14.8 |
14.1 |
24 |
23.67 |
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M 18 |
29.56 |
15.8 |
15.1 |
27 |
26.16 |
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M 20 |
32.95 |
18 |
16.9 |
30 |
29.16 |
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M 22 |
37.29 |
19.4 |
18.1 |
34 |
33 |
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M 24 |
39.55 |
21.5 |
20.2 |
36 |
35 |
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M 27 |
45.2 |
23.8 |
22.5 |
41 |
40 |
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M 30 |
50.85 |
26.6 |
24.3 |
46 |
45 |
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M 33 |
55.37 |
28.7 |
27.4 |
50 |
49 |
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M 36 |
60.79 |
31 |
29.4 |
55 |
53.8 |
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M 39 |
66.44 |
33.4 |
31.8 |
60 |
58.8 |
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M 42 |
71.3 |
34 |
32.4 |
65 |
63.1 |
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M 45 |
76.95 |
36 |
34.4 |
70 |
68.1 |
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M 48 |
82.6 |
38 |
39.4 |
75 |
73.1 |
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M 52 |
88.25 |
42 |
40.4 |
80 |
78.1 |
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M 56 |
93.56 |
45 |
43.4 |
85 |
82.8 |
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M 60 |
99.21 |
48 |
46.4 |
90 |
87.8 |
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M 64 |
104.86 |
51 |
49.1 |
95 |
92.8 |
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M 68 |
110.51 |
54 |
52.1 |
100 |
97.8 |
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M 72 x 6 |
116.16 |
58 |
56.1 |
105 |
102.8 |
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M 76 x 6 |
121.81 |
61 |
59.1 |
110 |
107.8 |
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M 80 x 6 |
127.46 |
64 |
62.1 |
115 |
112.8 |
Uses Of ASTM A194 Grade 7m Nuts
- Large size Quenched & tempered alloy steel 7M Nuts for Oil & Gas Industries
- Nuclear Energy Sector
- High Strength ASTM A194 Grade 7m Nuts for Automotive industry
- Offshore & Chemical Plants
- Alloy Steel A194 7M Nut suitable for Off-Shore Oil Drilling
- Engineering & Aerospace Industry
- ASTM A194 Grade 7m Nuts for Construction
- Heavy duty A194 Grade 7m Nuts for Heat Exchangers
- High quality ASTM A194 Grade 7m Petrochemical Hex Nuts
- Metric ASTM A194 Grade 7m Hex Nuts for Power Generation
Testing Tool & Equipment For A194 7M Hex Nut
- Hardness testing Machine for all A194 7M fasteners
- Image measuring instrument
- ASTM A194 Grade 7m Nut Routine inspection of calipers
- Tensile Testing Machine for pulling ASTM A194 Grade 7m Nuts
- Coordinate Measuring Machine
- Roughness tester used to test the surface finish of a ASTM A194 Grade 7m Nuts
- Suitability Test Machine for assembly testing
- Micrometer for accurate measurement of ASTM A194 Grade 7m Nuts
- SpectroChemical Analysis Machine
- Thread gauge and Smooth plug gauge used to check ASTM A194 Grade 7m Nuts quickly
FAQ
What is a Grade 7 nut?
A194 grade 7 nuts are commonly used nuts for both high-temperature and low-temperature applications and are commonly paired with bolts made to either A193 or A320.
What is ASTM A194?
The ASTM A194 specification covers a variety of carbon, alloy, and martensitic stainless steel nuts in the size range 1⁄4 through 4 in. and metric M6 through M100 nominal. ASTM A194 also covers austenitic stainless steel nuts in the size range of 1⁄4 in. and M6 nominal and above.
What is the best grade of nuts and bolts?
Grade 8 / Grade G
Thus they are stronger and are used in demanding applications such as automotive suspensions. Grade 8 bolts have 6 evenly spaced radial lines on the head. Grade G is roughly equivalent to Grade 8.
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