Type 304 stainless steel fasteners specifications are divided into sections like the grade, standard, size, length and surface coating. The length of this is 3 mm to 200 mm. These are available in various sizes and thickness as per the requirements. There are several SS 304 Nut Bolt Manufacturer available in the market but the one which is the best and trust-worthy is regal sales corporation.
The SS 304 Bolts and Nuts are non-magnetic in some conditions but in cold weather it becomes magnetic. These are used in aircraft parts, automobile wheel covers, conveyor belts and appliances. The ductility and performance are excellent in low temperature. SS 304 Nut Bolt Price list is available where one can see that the in India the prices are comparatively less then outside countries. 304 SS Stud Bolts are used in pressure vessel, industrial boilers, heat exchangers, condensers and pipelines. This has corrosion resistance more than type 301 and 302 stainless steel. 304 SS U-bolts and many other are the types of bolts that are manufactured and supplied to many other countries.
304 Grade Stainless steel screws are the mostly used grade for the production of screws. It contains 8% nickel and 18% chromium. This has excellent strength, corrosion resistance and also fabric ability. 304 stainless threaded rod is the one which is basically applied in the industries like aerospace, food and beverage, machinery, architecture and lot more. These rods can be stress relieved at 450 degree C – 600 Degree C for 1 hour with a little risk of sensitization.
SS 304 Bolt
Stainless Steel 304 Fasteners
Stainless steel 304 Nuts
Table of Content
Stainless steel 304 Fasteners is one of the highly used grades of stainless steel. It is also known as chromium nickel grade. Stainless steel 304 fasteners are an austenitic chromium nickel stainless steel. These are used in steel pickling, acid leach mining applications and other such industries. It has perfect corrosion resistance, durability and mechanical potency.
Regal Sales Corporation can supply the Stainless Steel 304 Fasteners in Malaysia, the Philippines, and Bahrain within 2 weeks.
ASTM A193 UNS S30400 Bolt Sizes
Stainless Steel 304 Fasteners Length
UNS S30400 Hex Bolts Features
SS 304 Fasteners Threads
SUS 304 Fasteners Drive Style
SUS 304 Heavy Hex Bolt Finishing
AISI 304 Carriage Bolt Head Type
WNR 1.4301 Bolt And Nut Production process
AISI 304 Washer Surface Coating
INOX 304 Fasteners Applications
SS 1.4301 Machine screws Packaging Methods
SS Type 304 Threaded Rod Testing Methods
AISI 304 Fasteners Delivered Origins
ASTM A193 SS 304 Screws Thread Class
Form of 304 Stainless Steel Heavy Hex Bolts
| Nuts Size (mm) |
Diameter* (mm) |
Height (mm) |
||
|---|---|---|---|---|
| Hex Nuts | Jam Nuts | Nylock Nuts | ||
| 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 |
Stainless Steel 304 fasteners Supplier in India provides a wide range of the most common types
304 Stainless Steel Hex Head Bolts
DIN 1.4301 Nuts and Bolts
AISI 304 Stainless Steel Rings
Astm A193 Stainless Steel 304 Wheel Nuts
ASME SA193 SS 304 Lag Bolts
SS 304 Belleville Washers
UNS S30400 Anchor Bolt
UNS S30400 Stainless Steel Exhaust Studs
AISI 304 Machine Screws
WERKSTOFF NR. 1.4301 Self Drilling Screw
Type 304 Stainless Steel Bolts and Nuts
ASME SA193 UNS S30400 Hex Nuts
WNR 1.4301 Threaded Inserts
304 Grade Stainless Steel Flat Head Screws
ASTM A193 UNS S30400 Square U Bolts
EN 1.4301 Threaded Rod
SUS 304 Studs
1.4301 Stainless Steel Nuts & Washers
304 SS Bolts
Stainless Steel 304 Washers
ASTM A193 UNS S30400 Dowel Pins
SUS 304 Spring Pin
WNR 1.4301 Threaded Rod
AISI 304 Stainless Steel Set Screws
EN 1.4301 U Bolts
UNS S30400 Threaded Stud
SS 304 Springs
AISI 304 Carriage Bolts
1.4301 Stainless Steel Hex Bolts
ASME SA193 SS 304 Stud Bolts
ASME SA193 UNS S30400 Nord Lock Washers
304 SS Exhaust Bolts
304 Grade Stainless Steel Cap Screws
304 Stainless Steel Self Tapping Screws
WERKSTOFF NR. 1.4301 Barrel Nuts
Stainless Steel 304 Hex Cap Screws
DIN 1.4301 Flat Washers
Astm A193 Stainless Steel 304 Spring Washers
UNS S30400 Stainless Steel Countersunk Bolts
Type 304 Stainless Steel Socket Head Cap Screws
AISI Grade Equivalent |
JIS Equivalent |
Stainless Steel Notation |
EN/DIN Numerical Equivalent |
UNS designation |
EN/DIN Symbolical Equivalent |
|---|---|---|---|---|---|
AISI 304 |
SUS304 |
SS 304 |
EN 1.4301 |
UNS S30400 |
X4CrNi18-10 |
AISI 304L |
SUS304L |
SS 304L |
EN 1.4307 |
UNS S30403 |
X2CrNi18-9 |
AISI 304H |
SUS304H |
SS 304H |
EN 1.4948 |
UNS S30409 |
X2CrNiN18-10 |
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (m/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Electrical Resistivity
(n.m) |
|||
|---|---|---|---|---|---|---|---|---|---|
0-100°C |
0-315°C |
0-538°C |
at 100°C |
at 500°C |
|||||
| 304/L/H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness |
|
|---|---|---|---|---|---|
Rockwell B (HR B) max |
Brine-ll (HB) max |
||||
| 304 | 515 | 205 | 40 | 92 | 201 |
| 304L | 485 | 170 | 40 | 92 | 201 |
| 304H | 515 | 205 | 40 | 92 | 201 |
Grade |
Mn |
C |
Si |
S |
Cr |
P |
Mo |
Ni |
N |
|
|---|---|---|---|---|---|---|---|---|---|---|
304 |
min.
max. |
-
2.0 |
-
0.08 |
-
0.75 |
-
0.030 |
18.0
20.0 |
-
0.045 |
- |
8.0
10.5 |
-
0.10 |
304H |
min.
max. |
-
2.0 |
0.04
0.10 |
-
0.75 |
-
0.030 |
18.0
20.0 |
-
0.045 |
- |
8.0
10.5 |
- |
304L |
min.
max. |
-
2.0 |
-
0.030 |
-
0.75 |
-
0.030 |
18.0
20.0 |
-
0.045 |
- |
8.0
12.0 |
-
0.10 |
Hexagon Bolt / Set Screws |
Stud Bolt |
Hexagon Nuts |
Socket Capscrews |
|---|---|---|---|
DIN 931 |
BS4882 |
DIN 934 |
DIN 912 |
DIN 933 |
DIN 976 |
BS 1768 |
DIN 6912 |
BS 1768 |
BS 1769 |
DIN 7984 |
|
UNI 5731 |
BS 1083 |
ANSI B18.3 |
|
UNI 5739 |
BS 3692 |
ISO 4762 |
|
ISO 4014 |
ISO 4032 |
UNI 5931 |
|
ISO 4017 |
ISO 4033 |
BS 2470 |
|
BS 1769 |
ANSI B18.2.2 |
BS 4168 |
|
BS 3692 |
|||
ANSI B18.2.1 |
Socket & Slotted Set Screws |
Socket & Slotted Countersunk Screws |
Studs |
Washers |
|---|---|---|---|
DIN 913 |
DIN 963 |
DIN 938 |
DIN 125 |
DIN 914 |
DIN 7991 |
DIN 939 |
DIN 9021 |

**All measurements in millimeters**
| NOMINAL SIZE (D) | BODY DIAMETER | HEAD THICKNEASTM A193 | ACROASTM A193 THE FLATS | ACROASTM A193 CORNERS | ||||
|---|---|---|---|---|---|---|---|---|
| D (MAX) | D (MIN) | H (MAX) | H (MIN) | F (MAX) | F (MIN) | C (MAX) | C (MIN) | |
| m10 | 10.00 | 9.78 | 6.63 | 6.17 | 17.00 | 15.73 | 18.48 | 17.77 |
| m12 | 12.00 | 11.73 | 7.76 | 4.24 | 19.00 | 17.73 | 20.78 | 20.03 |
| m14 | 14.00 | 13.73 | 9.09 | 8.51 | 22.00 | 20.67 | 24.25 | 23.35 |
| m16 | 16.00 | 15.73 | 10.32 | 9.68 | 24.00 | 23.67 | 27.71 | 26.75 |
| m20 | 20.00 | 19.67 | 12.88 | 12.12 | 30.00 | 29.16 | 34.64 | 32.95 |
| m24 | 24.00 | 23.67 | 15.44 | 14.56 | 36.00 | 35.00 | 41.57 | 39.55 |
| m30 | 30.00 | 29.67 | 19.48 | 17.92 | 46.00 | 45.00 | 53.12 | 50.85 |
| m36 | 36.00 | 35.61 | 23.38 | 21.63 | 55.00 | 53.80 | 63.51 | 60.79 |
| m42 | 42.00 | 41.38 | 26.97 | 25.03 | 65.00 | 62.90 | 75.06 | 71.71 |
| m48 | 48.00 | 47.38 | 31.07 | 28.93 | 75.00 | 72.60 | 86.60 | 82.76 |
| m56 | 56.00 | 55.26 | 36.2 | 33.80 | 85.00 | 82.20 | 98.15 | 93.71 |
| m64 | 64.00 | 63.26 | 41.32 | 38.68 | 95.00 | 91.80 | 109.70 | 104.65 |
| m72 | 72.00 | 71.26 | 46.45 | 43.55 | 105.00 | 101.40 | 121.24 | 115.60 |
| m80 | 80.00 | 79.26 | 51.58 | 48.42 | 115.00 | 111.00 | 132.72 | 126.54 |
| m90 | 90.00 | 89.13 | 57.74 | 54.26 | 130.00 | 125.50 | 150.11 | 143.07 |
| m100 | 90.00 | 99.13 | 63.9 | 60.10 | 145.00 | 140.00 | 167.43 | 159.60 |
| Torque Specifications | |||||||
|---|---|---|---|---|---|---|---|
Bolt Size Inches or # |
Threads Per Inch |
Standard Dry Torque in Inch-Pounds |
|||||
304 Stainless Steel |
316 Stainless Steel |
||||||
| #2 | 56 | 2.5 | 2.6 | ||||
| 64 | 3.0 | 3.2 | |||||
| #3 | 48 | 3.9 | 4.0 | ||||
| 56 | 4.4 | 4.6 | |||||
| #4 | 40 | 5.2 | 5.5 | ||||
| 48 | 6.6 | 6.9 | |||||
| #5 | 40 | 7.7 | 8.1 | ||||
| 44 | 9.4 | 9.8 | |||||
| #6 | 32 | 9.6 | 10.1 | ||||
| 40 | 12.1 | 12.7 | |||||
| #8 | 32 | 19.8 | 20.7 | ||||
| 36 | 22.0 | 23.0 | |||||
| #10 | 24 | 22.8 | 23.8 | ||||
| 32 | 31.7 | 33.1 | |||||
Bolt Size Inches or # |
Threads Per Inch |
Standard Dry Torque in Inch-Pounds |
|||||
304 Stainless Steel |
316 Stainless Steel |
||||||
| 1/4 | 20 | 75.2 | 78.8 | ||||
| 28 | 94.0 | 99.0 | |||||
| 5/16 | 18 | 132 | 138 | ||||
| 24 | 142 | 147 | |||||
| 3/8 | 16 | 236 | 247 | ||||
| 24 | 259 | 271 | |||||
| 7/16 | 14 | 376 | 393 | ||||
| 20 | 400 | 418 | |||||
| 1/2 | 13 | 517 | 542 | ||||
| 20 | 541 | 565 | |||||
Bolt Size Inches or # |
Threads Per Inch |
Standard Dry Torque in Inch-Pounds |
|||||
304 Stainless Steel |
316 Stainless Steel |
||||||
| 9/16 | 12 | 682 | 713 | ||||
| 18 | 752 | 787 | |||||
| 5/8 | 11 | 1110 | 1160 | ||||
| 18 | 1244 | 1301 | |||||
| 3/4 | 10 | 1530 | 1582 | ||||
| 16 | 1490 | 1558 | |||||
| 7/8 | 9 | 2328 | 2430 | ||||
| 14 | 2318 | 2420 | |||||
| 1 | 8 | 3440 | 3595 | ||||
| 14 | 3110 | 3250 | |||||
Bolt Size Inches or # |
Threads Per Inch |
Standard Dry Torque in Foot-Pounds |
|||||
304 Stainless Steel |
316 Stainless Steel |
||||||
| 1 1/8 | 7 | 413 | 432 | ||||
| 12 | 390 | 408 | |||||
| 1 1/4 | 7 | 523 | 546 | ||||
| 12 | 480 | 504 | |||||
| 1 1/2 | 6 | 888 | 930 | ||||
| 12 | 703 | 732 | |||||

| 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 |

| 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 |
Yes, SS 304 fasteners can withstand high temperatures up to approximately 870°C (1598°F) for intermittent service and 925°C (1697°F) for continuous service.
| Property | SS 304 | SS 316 |
|---|---|---|
| Composition | 18% Ch, 8% Ni | 16% Ch, 10% Ni, 2-3% Mo |
| Corrosion Resistance | Good | Superior |
| Strength | High tensile strength | Same as SS 304 |
| Temperature Resistance | Up to 870°C | Similar |
| Cost | More affordable | More expensive |
| Applications | General use, food processing, indoor | Marine, coastal, chemical industries |
| Magnetic Properties | Non-magnetic | Non-magnetic |
| Appearance | Shiny | Shiny |
| Environment | Corrosion Resistance |
|---|---|
| Mild Conditions | Excellent |
| saltwate | Prone to pitting and crevice corrosion |
| Alkaline Environments | Good, but can be susceptible to stress corrosion cracking |
| Indoor/Outdoor General Use | Excellent for general applications |
Materials
