ASTM F594 Nuts
Specification ASTM F594 covers all four classes of stainless steel including austenitic, ferritic, martensitic as well as precipitation hardening. The ASTM F594 Stainless Steel Nuts may be produced by any one of the seven groups. All four classes of stainless steels have been classified into these seven groups. This specification also mentions the various condition the astm f594 nuts is to be supplied under. For instance in group 1, the ASTM F594D Stainless Steel Nuts may be produced from alloys such as 304, 305, 304L, 384, 18–9LW as well as 302HQC.
If the ASTM F594H Stainless Steel Nuts belongs to Group 2, the alloys include grade 316 and its low carbon-containing alloy 316L. Group 3 consists of heat resistant austenitic stainless steel alloys i.e. grade 321 and grade 347 ASME SF594 Dome Nuts. Group 4 consists of 430E which makes the ASTM F594G Stainless Steel Nuts. All four groups i.e. 1, 2, 3 & 4 are delivered in a cold worked condition. The alloy for group 5 & 6 ASTM F594 Hex Head Nuts includes alloys 410F & 431 respectively.
Fasteners like the ASME SF594 Barrel Nut from both group 5 & group 6 have been delivered in a hardened and tempered condition. Lastly, group 6, which consists of alloy 630 ASTM F594 Heavy Hex Nut, is delivered in an aged hardened condition. In addition to conforming to the mechanical properties, the F594 Stainless Steel Washers need to be subjected to tests that determine their chemistry, corrosion resistance as well as mechanical properties.
Dimensions Standard |
ASME B18.2.1, B18.3 |
|---|---|
Origin of Product |
India |
Origin Melt |
Korea/ East Europe/South America/Japan |
| Coatings | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others as per need |
Certification |
As per ASTM & ASME Codes Dual Certified |
Configuration of Threads |
B1.13M 6h Metric Coarse Threads and ASME B1.1 2A/3A Inch Unified Threads |
Necessary Need |
remove Mercury and Radioactive Contamination |
| Description | ASTM F594 Nuts Price |
| ASTM F594 Stainless Steel Hex Nut M3 to M100 | US $ 0.001 to 0.005 / Piece |
| ASTM F594 SS 304 Left thread UNC Hex NUT | US $ 0.005 to 0.10 / Piece |
| astm F594 coupling nut | US $ 0.001 to 0.10 / Piece |
| hexagon ASTM F594 nut | US $ 0. 015 to 0. 050 / Pieces |
| ASTM F594 lock nut and Fasteners | US $ 1. 050 to 2.00 / Piece |
| DIN 557 ASTM F594 A2 70 Square Nut | US $ 0. 10 to 0. 030 / Piece |
| ASTM F594 304/316 stainless steel hex nut | US $ 0.001 to 0.005 / Piece |
| weld nut hex flangeASTM F594 | US $ 0. 010 to 1. 020 / Piece |
| All Size Material ASTM F594 Hex Thin Nuts | US $ 0. 010 to 0. 030 / Piece |
| Alloy Group | Alloy Type | Alloy Designation |
|---|---|---|
| 1 | Austenitic | 316, 316L |
| 2 | Austenitic | 303, 304, 304L, 305, 384, XM1, 18-9LW, 302HQ, 303Se |
| 3 | Ferritic | 430, 430F |
| 4 | Austenitic | 321, 347 |
| 5 | Martensitic | 431 |
| 6 | Martensitic | 410, 416, 416Se |
| 7 | Precipitation Hardening | 630 (17-4) |
| *The selection of an alloy within each group is at the discretion of the manufacturer unless the purchaser requests a specific alloy. | ||
Diameter* (milimeter) |
Nut Size (milimeter) |
Height (milimeter) |
||
|---|---|---|---|---|
Jam Nut |
Hex Nut |
Nylock Nut |
||
4 |
2 |
1.02 |
1.06 |
- |
5 |
2.05 |
1.06 |
2 |
- |
5.05 |
3 |
1.08 |
2.04 |
4 |
7 |
4 |
2.02 |
3.02 |
5 |
8 |
5 |
2.07 |
4 |
5 |
10 |
6 |
3.02 |
5 |
6 |
11 |
7 |
3.05 |
5.05 |
- |
13 |
8 |
4 |
6.05 |
8 |
17 |
10 |
5 |
8 |
10 |
19 |
12 |
6 |
10 |
12 |
22 |
14 |
7 |
11 |
14 |
24 |
16 |
8 |
13 |
16 |
27 |
18 |
9 |
15 |
18.05 |
30 |
20 |
10 |
16 |
20 |
Common Major Thread Dia or Nominal Size |
G |
F |
H |
||||||
Width Across Corners |
Width Across Flats |
Thickness |
|||||||
Minimum |
Maximum |
Maximum |
Basic |
Minimum |
Maximum |
Minimum |
Basic |
||
0.02500 |
1/4 |
0.0488 |
0.0505 |
0.0438 |
7/16 |
0.0428 |
0.0226 |
0.0212 |
7/32 |
0.03125 |
5/16 |
0.0557 |
0.0577 |
0.0500 |
1/2 |
0.0489 |
0.0273 |
0.0258 |
17/64 |
0.03750 |
3/8 |
0.0628 |
0.0650 |
0.0562 |
9/16 |
0.0551 |
0.0337 |
0.0479 |
21/64 |
0.04375 |
7/16 |
0.0768 |
0.0794 |
0.0688 |
11/16 |
0.0675 |
0.0385 |
0.0365 |
3/8 |
0.05000 |
1/2 |
0.0840 |
0.0866 |
0.0750 |
3/4 |
0.0736 |
0.0448 |
0.0427 |
7/16 |
0.05625 |
9/16 |
0.0982 |
10.0010 |
0.0875 |
7/8 |
0.0861 |
0.0496 |
0.0473 |
31/64 |
0.06250 |
5/8 |
10.0051 |
10.0083 |
0.0938 |
15/16 |
0.0922 |
0.0559 |
0.0535 |
35/64 |
0.07500 |
3/4 |
10.0240 |
10.0299 |
10.0125 |
1 to 1/8 |
10.0088 |
0.0665 |
0.0617 |
41/64 |
0.08750 |
7/8 |
10.0447 |
10.0516 |
10.0312 |
1 to 5/16 |
10.0269 |
0.0776 |
0.0724 |
3/4 |
10.00000 |
1 |
10.0653 |
10.0732 |
10.0500 |
1 to 1/2 |
10.0450 |
0.0887 |
0.0831 |
55/64 |
10.01250 |
1 to 1/8 |
10.0859 |
10.0949 |
10.0688 |
1 to 11/16 |
10.0631 |
0.0999 |
0.0939 |
31/32 |
10.03750 |
1 to 3/8 |
20.0273 |
20.0382 |
20.0062 |
2 to 1/16 |
10.0994 |
10.0206 |
10.0138 |
1 to 11/64 |
10.0500 |
1 to 1/2 |
20.0480 |
20.0598 |
20.0250 |
2 to 1/4 |
20.0175 |
10.0ASTM A194 GR0.0 8 |
10.0245 |
1 to 9/32 |
10.06250 |
1 to 5/8 |
20.0686 |
20.0815 |
20.0438 |
2 to 7/16 |
20.0356 |
10.0429 |
10.0353 |
1 to 25/64 |
10.07500 |
1 to 3/4 |
20.0893 |
30.0031 |
20.0625 |
2 to 5/8 |
20.0538 |
10.0540 |
10.0460 |
1 to 1/2 |
20.00000 |
2 |
30.0306 |
30.0464 |
30.0000 |
3 |
20.0900 |
10.0763 |
10.0675 |
1 to 23/32 |
20.02500 |
2 to 1/4 |
30.0719 |
30.0897 |
30.0375 |
3 to 3/8 |
30.0263 |
10.0986 |
10.0890 |
1 to 15/16 |
20.05000 |
2 to 1/2 |
40.0133 |
40.0330 |
30.0750 |
3 to 3/4 |
30.0625 |
20.0209 |
20.0105 |
2 to 5/32 |
20.07500 |
2 to 3/4 |
40.0546 |
40.0763 |
40.0125 |
4 to 1/8 |
30.0988 |
20.0431 |
20.0319 |
2 to 3/8 |
**All measurements in millimeters**
Common Major Thread Dia or Nominal Size |
G |
F |
H |
||||||
Across Width Corners |
Across Width Flats |
Thickness |
|||||||
Minimum |
Maximum |
Maximum |
Basic |
Minimum |
Maximum |
Basic |
Minimum |
||
0.02500 |
1/4 |
0.0488 |
0.0505 |
0.0438 |
7/16 |
0.0428 |
0.0226 |
7/32 |
0.0212 |
0.03125 |
5/16 |
0.0557 |
0.0577 |
0.0500 |
1/2 |
0.0489 |
0.0273 |
17/64 |
0.0258 |
0.03750 |
3/8 |
0.0628 |
0.0650 |
0.0562 |
9/16 |
0.0551 |
0.0337 |
21/64 |
0.0479 |
0.04375 |
7/16 |
0.0768 |
0.0794 |
0.0688 |
11/16 |
0.0675 |
0.0385 |
3/8 |
0.0365 |
0.05000 |
1/2 |
0.0840 |
0.0866 |
0.0750 |
3/4 |
0.0736 |
0.0448 |
7/16 |
0.0427 |
0.05625 |
9/16 |
0.0982 |
10.0010 |
0.0875 |
7/8 |
0.0861 |
0.0496 |
31/64 |
0.0473 |
0.06250 |
5/8 |
10.0051 |
10.0083 |
0.0938 |
15/16 |
0.0922 |
0.0559 |
35/64 |
0.0535 |
0.07500 |
3/4 |
10.0240 |
10.0299 |
10.0125 |
1 to 1/8 |
10.0088 |
0.0665 |
41/64 |
0.0617 |
0.08750 |
7/8 |
10.0447 |
10.0516 |
10.0312 |
1 to 5/16 |
10.0269 |
0.0776 |
3/4 |
0.0724 |
10.00000 |
1 |
10.0653 |
10.0732 |
10.0500 |
1 to 1/2 |
10.0450 |
0.0887 |
55/64 |
0.0831 |
10.01250 |
1 to 1/8 |
10.0859 |
10.0949 |
10.0688 |
1 to 11/16 |
10.0631 |
0.0999 |
31/32 |
0.0939 |
10.03750 |
1 to 3/8 |
20.0273 |
20.0382 |
20.0062 |
2 to 1/16 |
10.0994 |
10.0206 |
1 to 11/64 |
10.0138 |
10.0500 |
1 to 1/2 |
20.0480 |
20.0598 |
20.0250 |
2 to 1/4 |
20.0175 |
10.0ASTM A194 GR0.0 8 |
1 to 9/32 |
10.0245 |
10.06250 |
1 to 5/8 |
20.0686 |
20.0815 |
20.0438 |
2 to 7/16 |
20.0356 |
10.0429 |
1 to 25/64 |
10.0353 |
10.07500 |
1 to 3/4 |
20.0893 |
30.0031 |
20.0625 |
2 to 5/8 |
20.0538 |
10.0540 |
1 to 1/2 |
10.0460 |
20.00000 |
2 |
30.0306 |
30.0464 |
30.0000 |
3 |
20.0900 |
10.0763 |
1 to 23/32 |
10.0675 |
20.02500 |
2 to 1/4 |
30.0719 |
30.0897 |
30.0375 |
3 to 3/8 |
30.0263 |
10.0986 |
1 to 15/16 |
10.0890 |
20.05000 |
2 to 1/2 |
40.0133 |
40.0330 |
30.0750 |
3 to 3/4 |
30.0625 |
20.0209 |
2 to 5/32 |
20.0105 |
20.07500 |
2 to 3/4 |
40.0546 |
40.0763 |
40.0125 |
4 to 1/8 |
30.0988 |
20.0431 |
2 to 3/8 |
20.0319 |
| Nominal Size, inch. | Fine Threads - UNF | Coarse Threads - UNC | Thread Series - 8UN | |||
|---|---|---|---|---|---|---|
| Threads / inch | Stress AreaA, in2 | Threads / inch | Stress AreaA, in2 | Threads / inch | Stress AreaA, in2 | |
| 5/16 (0.03125) | 24 | 0.00580 | 18 | 0.00524 | -- | -- |
| 1/4 (0.0250) | 28 | 0.00364 | 20 | 0.00318 | -- | -- |
| 7/16 (0.04375) | 20 | 0.01187 | 14 | 0.01063 | ||
| 3/18 (0.0375) | 24 | 0.00878 | 16 | 0.00775 | -- | -- |
| 1 1/2 (1.500) | 12 | 1.5810 | 6 | 1.4050 | 8 | 1.492 |
| 9/16 (0.05625) | 18 | 0.02030 | 12 | 0.01820 | ||
| 1/2 (0.0500) | 20 | 0.01599 | 13 | 0.01419 | ||
| 3/4 (0.0750) | 16 | 0.03730 | 10 | 0.03340 | ||
| 1 3/8 (1.375) | 12 | 1.3150 | 6 | 1.1550 | 8 | 1.233 |
| 5/8 (0.0625) | 18 | 0.02560 | 11 | 0.02260 | ||
| 1 | 12 | 0.06630 | 8 | 0.06060 | ||
| 7/8 (0/875) | 14 | 0.05090 | 9 | 0.04620 | ||
| 1 1/4 (1.250) | 12 | 1.0730 | 7 | 0.09690 | 8 | 1.000 |
| 1 1/8 (1.125) | 12 | 0.08560 | 7 | 0.07630 | 8 | 0.0790 |
| Element, max except as shown | Alloy Group 2, Type 316 | Alloy Group 1, Type 304 |
|---|---|---|
| Manganese | 2.000% | 2.000% |
| Carbon | 0.008% | 0.008% |
| Sulfur | 0.0030% | 0.0030% |
| Phosphorus | 0.0045% | 0.0045% |
| Chromium | 16.00 to 18.00% | 18.00 to 20.00% |
| Silicon | 1.000% | 1.000% |
| Copper | 1.000% | |
| Nickel | 10.00 to 14.00% | 8.00 to 10.05% |
| Molybdenum | 2.000 to 3.000% |
| Alloy Group | Marking | Condition | Proof Stress, Heavy Hex Nuts, ksi | Proof Stress, Hex Nuts, ksi | Diameter Range | Rockwell Hardness |
|---|---|---|---|---|---|---|
| 1 | F594D | CW2 | 92 | 85 | 3/4 - 1-1/2 | B80 - C32 |
| F594B | A | 81 | 75 | 1/4 - 1-1/2 | B65 - 95 | |
| F594A | AF | 76 | 70 | 1/4 - 1-1/2 | B85 max | |
| F594C | CW1 | 108 | 100 | 1/4 - 5/8 | B95 - C32 | |
| 2 | F594F | A | 81 | 75 | 1/4 - 1-1/2 | B65 - 95 |
| F594E | AF | 76 | 70 | 1/4 - 1-1/2 | B85 max | |
| F594H | CW2 | 92 | 85 | 3/4 - 1-1/2 | B80 - C32 | |
| F594G | CW1 | 108 | 100 | 1/4 - 5/8 | B95 - C32 |
Product |
Proof Stress, ksi |
Test Conducted Using Full Size Product |
|
|---|---|---|---|
Proof Load |
Hardness |
||
All other nuts |
Upto 120 000 |
A |
A |
Jam, slotted and castle nuts |
All |
B |
A |
All other nuts |
Over 120 000 |
Option B |
Option AA |
| F594 Heavy Hex Nut | ASME SF594 Panel Nut |
| SF594 Nuts | F594 Alloy Steel Nuts |
| F594 Hex Nut | F594 Bolt |
| F594 Nuts | F594 Forged Eye Nut |
| F594 Cap nuts | F594 Hex lock nuts nylon insert |
| F594 Metric Nuts | F594 Top lock nuts |
| Indonesia, Dammam -KSA, Philippines, Belgium | ASTM F594 Stainless Steel Nuts |
| France, Qatar, Europe, Thailand | ASTM F594 Hex Nuts |
| Germany, Czechia, Thailand, Malaysia | ASTM F594 Washers |
| USA, Malaysia, Bangladesh, Finland | F594 Stainless Steel Washers |
| Saudi Arabia (KSA), South Africa, Kuwait, Brazil | ASTM F594 Heavy Hex Nut |
| South Africa, Bahrain, Singapore | F594 Lug Nuts |
| Australia, Philippines, UK, Nigeria | ASME SF594 Barrel Nut |
| Malaysia, Oman, Hong Kong, UAE | F594 Lock Nut |
| Italy, Chile, Iran, Singapore | ASTM F594 Hex Head Nuts |
| Turkey, United Arab Emirates (UAE), Norway, Malaysia | ASME SF594 Dome Nuts |
| Malaysia, Netherlands, Russia, Dubai | ASTM F594G Stainless Steel Nuts |
| Spain, Egypt, Mexico, UK | ASTM F594 Fasteners |
| Europe, United Kingdom -UK, Malaysia, UAE | ASTM F594H Stainless Steel Nuts |
| Canada, UK, Poland, Ellington -United States | F594 Acorn Nuts |
| Malaysia, Philippines, Canada, Singapore | ASTM F594D Stainless Steel Nuts |
| Japan, Europe, Romania, Malaysia | SS F594 Coupling Nuts |
| Colombia, Sweden, Malaysia, China | SF594 Wing Nuts |
| Taiwan, Malaysia, Los Alamos -Mexico, Philippines | ASTM F594 Panel Nuts |
| South Korea, Singapore, NY 12203 (USA), Malaysia | ASTM F594 Square Nuts |
