Stainless Steel Fasteners
SS Nut Bolt
A193 SS Nut Bolt
Table of Content



SS Fasteners Sizes
SS Screw Length
Stainless Steel Washer Features
SS Fasteners Threads
Stainless Steel Marine Fasteners Forms
Stainless Steel Bolts Finishing
Stainless Steel Nuts Head Drive
SS Automotive Fasteners Production process
SS Threaded Fasteners Surface Coating
SS Anchor Bolts Applications
SS High Temperature Fasteners Packaging Methods
Stainless Steel Deck Fasteners Testing Methods
Stainless Steel Fasteners Supplier in India provides a Wide Range of The Most Common Types
SS Threaded Fasteners
Stainless Steel Cold Forged Fasteners
Coloured Stainless Steel Dowel Pins
ASTM A193 SS Exhaust Studs
ASME SA193 SS Threaded Stud
SS Heavy Duty Fasteners
Stainless Steel High Strength Fasteners
SS Marine Fasteners
ASME SA193 Stainless Steel Threaded Inserts
SS Industrial Fasteners
ASME SA193 SS Hex Cap Screws
A193 Stainless Steel Bolts and Nuts
ASTM A193 SS Studs
SS Rings
ASME SA193 SS Cap Screws
Coloured Stainless Steel Exhaust Bolts
| 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 | |
Stainless Steel Fasteners Manufacturer in India offers a wide Range of Dimensions
| 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 |
| 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 |
Detailed Fasteners dimensions from a trusted stainless steel fasteners manufacturers in India
| 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 |
|
Unified Inch Coarse and Fine Threads
|
|||
|---|---|---|---|
|
Stainless Steel Bolt Size
|
Threads per Inch
|
||
|
Frac. [No.]
|
Decimal
|
UNC
|
UNF
|
|
1/8 [#6]
|
0.1380
|
32
|
40
|
|
5/32 [#8]
|
0.1640
|
32
|
36
|
|
3/16 [#10]
|
0.1900
|
24
|
32
|
|
1/4
|
0.2500
|
20
|
28
|
|
5/16
|
0.3125
|
18
|
24
|
|
3/8
|
0.3750
|
16
|
24
|
|
7/16
|
0.4375
|
14
|
20
|
|
1/2
|
0.5000
|
13
|
20
|
|
9/16
|
0.5625
|
12
|
18
|
|
5/8
|
0.6250
|
11
|
18
|
|
3/4
|
0.7500
|
10
|
16
|
|
7/8
|
0.8750
|
9
|
14
|
|
1
|
1.0000
|
8
|
12, 14
|
|
1 1/8
|
1.1250
|
7
|
12
|
|
1 1/4
|
1.2500
|
7
|
12
|
|
1 3/8
|
1.3750
|
6
|
12
|
|
1 1/2
|
1.5000
|
6
|
12
|
|
1 3/4
|
1.7500
|
5
|
–
|
SS Nut Bolt Supplier in India Provides Premium-grade Fasteners with Superior Strength
Tensile Strength
Psi – 75000, MPa – 515
Yield Strength
Psi – 30000, MPa – 205
Elongation
35 %
Melting Point
1400 °C (2550 °F)
Stainless Steel Fasteners Manufacturer in India Offers Flanges With Equivalent Material Grades.
WERKSTOFF NR.
1.4301
UNS
S30400
AFNOR
Z7CN18‐09
BS
304S31
GOST
08Х18Н10
EN
X5CrNi18-10
| Grades | Tensile Strength (psi) | Yield Strength (psi) | Corrosion Resistance |
|---|---|---|---|
| 304, 316 | 70,000 - 90,000 | 30,000 - 45,000 | Excellent |
| 410, 420 | 90,000 - 150,000 | 45,000 - 95,000 | Moderate |
| 17-4 PH | Up to 200,000+ | 150,000+ | Good |
SS fasteners can be magnetic or non-magnetic:
| ASTM Standard |
|---|
| A193/A193M |
| A194/A194M |
| F593 |
| F594 |
| F738M |
| A320/A320M |
| F879 |
| Metric Fasteners | Imperial Fasteners |
|---|---|
| Millimeters (mm) | Inches (in) or fractions |
| Specified in mm (e.g., M8x1.25) | Threads per inch (TPI), e.g., 1/4"-20 |
| "M" + diameter + length (e.g., M6x30) | Diameter + TPI (e.g., 1/4"-20x1) |
| ISO | ANSI or SAE |
| Europe, Asia, global | North America, some legacy equipment |
Yes, Grade 5 bolts are stronger than standard stainless steel bolts
| Steel group | Steel grade |
Property class |
Tensile Strength min MPa |
|---|---|---|---|
| Martensitic | C1 | 50 | 500 |
| 70 | 700 | ||
| 1103 | 1100 | ||
| C3 | 80 | 800 | |
| C4 | 50 | 500 | |
| 70 | 700 | ||
| Ferritic | F14 | 45 | 450 |
| 60 | 600 |
| British Standard | Types |
|---|---|
| BS 325 | Countersunk bolts and nuts |
| BS 2061 | Spring Washers |
| BS 2470 | Hex Socket Screws |
| BS 450 | Machine screws and nuts |
| BS 1768 | Hexagon Bolts |
| BS 1804-1 | Dowel Pins |
| BS 3673 | Spring retaining rings |
| BS 4168-1 | Socket head cap screws |
| BS 4439 | Screwed Studs |
| Indian Standard | Types |
|---|---|
| IS 1363-1 | Socket Head Cap Screws |
| IS 6094-1 | Set Screws |
| IS 8856 | Hexagon Weld Nuts |
| IS 1363-3 | Spring Lock Washers |
| IS 2269 | Hex head bolts |
| IS 6735 | Hex Nuts |
| IS 7795 | Hex Nuts with Collar |
304 stainless steel fasteners are a Good option. Because of their corrosion resistance and cost-effectivenes
| Country Name | Delivery Time |
|---|---|
| United Kingdom |
30 days
|
| Germany |
20 days
|
| Norway |
45 days
|
| Canada |
45 days
|
| Italy |
28 days
|
| UAE |
5 days
|
| Africa |
25 days
|
| Qatar |
7 days
|
| USA |
40-60 days
|
Materials
