321 Stainless Steel Fasteners Manufacturers In India

Supplies a full range of 321 Stainless Steel Hex Nuts, Stainless Steel 321 Bolts, SS 321 Bolts, 321 SS Hex Bolts at Factory price in India

carries a complete line of Stainless Steel 321 Nuts, 321 SS Stud Bolt Materials, SS 321 Socket Cap Screw, 321 Stainless Steel Bolts in mumbai, India

One of the reasons for the development of 321 grade of stainless steel was because of its excellent resistance to intergranular corrosion when exposed to a temperature range of 427° C to 816° C during chromium precipitation. The addition of titanium in the alloy of 321 Stainless Steel Fasteners is the reason it is stabilized against chromium carbide formation.

321 Stainless Steel Fasteners Manufacturers in India
321 Stainless Steel Fasteners Manufacturers In India
321 Stainless Steel Bolts
321 Stainless Steel Bolts
321 Stainless Steel Studs
321 Stainless Steel Studs
321 Stainless Steel Nuts
321 Stainless Steel Nuts
321 Stainless Steel Hex Bolts
321 Stainless Steel Hex Bolts
321 Stainless Steel Threaded Rod
321 Stainless Steel Threaded Rod

Apart from being resistant to intergranular corrosion, SS 321 Socket Cap Screw the is well suited for high temperature applications because the fasteners retain their good mechanical properties like high creep and stress rupture strength even at elevated temperatures.While 304L grade stainless steel fasteners are limited to temperature applications up to 426° C, 321 grade stainless steels can be used up to a maximum of 816° C.

The corrosion resistance for both SS 321 Bolts and 304 are similar in terms of general and localized corrosion. Although prolonged heating of 321 grade at chromium precipitation range may affect the general resistance of the alloy in corrosive media. Similar to ss 304, Stainless Steel 321 Bolts are susceptible to stress related corrosion cracking when exposed to environments containing halide compounds.

The resistance of the alloy of Stainless Steel 321 Nuts is similar to fasteners of the 304 grade or Type 304L, in the presence of chloride ion.In applications where there are crevices present, 100 ppm chloride in aqueous environments is considered to be the limit for both the stabilized alloys like 321 SS Stud Bolt as well as unsterilized alloys. Levels of chloride ion higher than 100 ppm or parts per million can cause either or both crevice corrosion and pitting. In case of applications, where the content of chloride level is high, it is better that stainless steel grades like 316 or higher molybdenum content stainless steel grades be considered.

The  SS 321 Screws are not recommended for exposure to brine or salt water. Hence they are not to be used in marine

 

321 Stainless Steel Fasteners Specifications

Specifications of 321 Stainless Steel Fasteners ASTM A193 / A193, ASME SA193 / SA194
Standard of 321 Stainless Steel Fasteners DIN, ASTM, BS and all International Standards
Length of 321 Stainless Steel Fasteners 3 mm to 200 mm
321 Stainless Steel Nuts Size M3 - M56 | 3/6" to 2" | Custom Sizes
321 Stainless Steel Bolt / Screw Size M3 - M56 | 3/6" to 2" | Custom Sizes
321 Stainless Steel Machine Screws Size M1.6 - M12
321 Stainless Steel Washers Size M3 - M56 | 3/6" to 2" | Custom Sizes
Stainless Steel Grades SS 321
321 Stainless Steel Fasteners Type Nut, Hex Coupling Nut, Hex Nut, Square Nut, Hex Domed Cap Nuts, Hex Head Bolts, Stud Bolts, Socket Hexagon Head Screw, Pan Head Screw, Socket Head Cap Screw, Wing Screw, T-Head Bolts, Foundation Bolts,Screw, Studs, Socket Screw, Hex Set Screw, Cap Screw, Machine Screw, Wing Screw, Spring Washers, Washers, Studs, Marine Anchors, Anchors, Hexagon Nut,U- Bolts, Anchor Bolt, Mushroom Head Square Neck Bolts, J Bolts,Eye Bolt,Structural Bolts, Bolts, Nuts, Sockets, Screws, Allen Cap screw

 

India’s Largest SS 321 Screws, SS 321 Bolts, 321 SS Stud Bolt Suppliers in mumbai, India

321 Stainless Steel Bolts Dimensions

321 Stainless Steel Hex Bolt Dimension

321 Stainless Steel Bolts Dimensions

**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

 

Size Chart of AISI 321 Stainless Steel Nuts

321 Stainless Steel Nuts Size Chart

Nut Size
(mm)
Diameter*
(mm)
Height
(mm)
Hex Nut
Jam Nut
Nylock Nut
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
* This is the diameter across the flats. It is also the size of wrench to use.

 

Size Chart of 321 Stainless Steel Screws

Size Chart of 321 Stainless Steel Screws

 

Size Chart of SUS321 Stainless Steel Washer

Size Chart of SUS321 Stainless Steel Washer

Size
USS
SAE
Inside Diameter
(A)
Outside Diameter
(B)
Thickness
(C)
Inside Diameter
(A)
Outside Diameter
(B)
Thickness
(C)
#2
-
-
-
3/32"
1/4"
0.020"
#4
-
-
-
1/8"
5/16"
0.032"
#6
-
-
-
5/32"
3/8"
0.049"
#8
-
-
-
3/16"
7/16"
0.049"

 

Dimensions of Stainless Steel 321 Hex Nuts

 

Dimensions of Stainless Steel 321 Hex Nuts

**All measurements in millimeters**

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

 

321 Stainless Steel Flat Washer Dimensions

Bolt Size
USS
SAE
OD (in.)
ID (in.)
Thickness
OD (in.)
ID (in.)
Thickness
1/8 (#6)
-
-
-
0.375
0.156
.036/.065
5/32 (#8)
-
-
-
0.438
0.188
.036/.065
3/16 (#10)
0.560
0.250
.036/.065
0.500
0.220
.036/.065
7/32 (#12)
-
-
-
0.562
0.250
.051/.080
1/4 (#14)
0.734
0.312
.051/.080
0.625
0.281
.051/.080
5/16
0.875
0.375
.064/.104
0.688
0.344
.051/.080
3/8
1.000
0.438
.064/.104
0.812
0.406
.051/.080
7/16
1.250
0.500
.064/.104
0.922
0.469
.051/.080
1/2
1.375
0.562
.086/.132
1.062
0.531
.074/.121
9/16
1.469
0.625
.086/.132
1.156
0.594
.074/.121
5/8
1.750
0.688
.108/.160
1.312
0.656
.074/.121
3/4
2.000
0.812
.122/.177
1.469
0.812
.108/.160
7/8
2.250
0.938
.136/.192
1.750
0.938
.108/.160
1
2.500
1.062
.136/.192
2.000
1.062
.108/.160
1 1/8
2.750
1.250
.136/.192
2.250
1.250
.108/.160
1 1/4
3.000
1.375
.136/.192
2.500
1.375
.136/.192
1 3/8
3.250
1.500
.153/.213
2.750
1.500
.136/.213
1 1/2
3.500
1.625
.153/.213
3.000
1.625
.153/.213
1 5/8
3.750
1.750
.153/.213
-
-
-
1 3/4
4.000
1.875
.153/.213
-
-
-
1 7/8
4.250
2.000
.153/.213
-
-
-
2
4.500
2.125
.153/.213
-
-
-
2 1/4
4.750
2.375
.320/.248
-
-
-
2 1/2
5.000
2.625
.210/.280
-
-
-
2 3/4
5.250
2.875
.228/.410S
-
-
-
3
5.500
3.125
.249/.327
-
-
-

Stainless Steel UNS S32100 Socket Head Cap Screw Dimensions

Stainless Steel UNS S32100 Socket Head Cap Screw Dimensions

 

Nominal
Thread.
Hex Socket Size
Body diameter and Head height
Head Dia
Soc. length
Size
Pitch
 
Max
Min
Max
Min
 
 
 
J
D /H
A
K
M3
0.5
2.50
3.00
2.86
5.50
5.20
1.3
M4
0.70
3.00
4.00
3.82
7.00
6.64
2.00
M5
0.8
4.00
5.00
4.82
8.50
8.14
2.70
M6
1.0
5.00
6.00
5.82
10.00
9.64
3.30
M8
1.25
6.00
8.00
7.78
13.00
12.57
4.3
M10
1.5
8.00
10.00
9.78
16.00
15.57
5.50
M12
1.75
10.00
12.00
11.73
18.00
17.57
6.60
M16
2.0
14.00
16.00
15.73
24.00
23.48
8.80
M20
2.5
17.00
20.00
19.67
30.00
29.48
10.70
M24
3.0
19.00
24.00
23.67
36.00
35.38
12.90

 

321 Stainless Steel Bolts Type

SS 321 Heavy Hex Bolts
SS 321 Heavy Hex Bolts
SA193 SS 321 Hex Bolts
SA193 SS 321 Hex Bolts
321 SS Lag Bolts
321 SS Lag Bolts
DIN 1.4541 SS Anchor Bolts
DIN 1.4541 SS Anchor Bolts
SS UNS S32100 Carriage Bolts
SS UNS S32100 Carriage Bolts
SUS321 Allen Cap Bolt
SUS321 Allen Cap Bolt
DIN 1.4541 SS Countersunk Bolts
DIN 1.4541 SS Countersunk Bolts
AISI 321 Flange Bolts
AISI 321 Flange Bolts
SS 321 Square Bolts
SS 321 Square Bolts
321 SS Hex Head Bolts
321 SS Hex Head Bolts
ASME SA193 SS U Bolts
ASME SA193 SS U Bolts
321 SS Eye Bolts
321 SS Eye Bolts

 

321 Stainless Steel Studs Types

A193 SS 321 Stud Bolts
A193 SS 321 Stud Bolts
321 SS Double Ended Studs
321 SS Double Ended Studs
321 SA193 SS Tie Bars
321 SA193 SS Tie Bars
321 SS Threaded Rod
321 SS Threaded Rod
ASME SA193 321 SS Tie Rods
ASME SA193 321 SS Tie Rods

 

321 Stainless Steel Nuts Types

AISI 321 Acorn Nuts
AISI 321 Acorn Nuts
SS UNS S32100 T Nuts
SS UNS S32100 T Nuts
321 Stainless Steel Serrated Flange Nuts
321 Stainless Steel Serrated Flange Nuts
321 Stainless Steel Nyloc Nuts
321 Stainless Steel Nyloc Nuts
SA193 SS 321 Wing Nuts
SA193 SS 321 Wing Nuts
AISI 321 Panel Nuts
AISI 321 Panel Nuts
A193 SS 321 Coupling Nuts
A193 SS 321 Coupling Nuts
ASME SA193 321 SS Dome Nuts
ASME SA193 321 SS Dome Nuts
UNS S32100 SS Square Nuts
UNS S32100 SS Square Nuts
321 SS Hex Head Nuts
321 SS Hex Head Nuts
A193 SS UNS S32100 Hex Nuts
A193 SS UNS S32100 Hex Nuts
ASME SA193 321 SS Eye Nuts
ASME SA193 321 SS Eye Nuts
SA193 321 SS Heavy Hex Nuts
SA193 321 SS Heavy Hex Nuts
AISI 321 Lock Nut
AISI 321 Lock Nut
Stainless Steel 321 Self Locking Nuts
Stainless Steel 321 Self Locking Nuts
321 Stainless Steel Nylon Insert Nuts
321 Stainless Steel Nylon Insert Nuts

 

321 Stainless Steel Washers Types

Stainless Steel UNS S32100 Ogee Washers
Stainless Steel UNS S32100 Ogee Washers
AISI 321 Stainless Steel Split Washers
AISI 321 Stainless Steel Split Washers
SUS321 Stainless Steel Flat Washers
SUS321 Stainless Steel Flat Washers
EN 1.4541 SS Star Washers
EN 1.4541 SS Star Washers
AISI 321H SS Dock Washers
AISI 321H SS Dock Washers
SS 321 Belleville Washers
SS 321 Belleville Washers
Stainless Steel 321 Fender Washer
Stainless Steel 321 Fender Washer
SS 321 Countersunk Finishing Washer
SS 321 Countersunk Finishing Washer
321 Stainless Steel Square Washers
321 Stainless Steel Square Washers
UNS S32100 SS Spring Washers
UNS S32100 SS Spring Washers
DIN 1.4541 Stainless Steel Lock Washers
DIN 1.4541 Stainless Steel Lock Washers
ASME SA193 321 SS Spherical Washers
ASME SA193 321 SS Spherical Washers

 

321 Stainless Steel Screws Types

321 SS Socket Head Cap Screw
321 SS Socket Head Cap Screw
Grade 321 SS Wing Screw
Grade 321 SS Wing Screw
DIN 1.4541 Stainless Steel Roofing Screw
DIN 1.4541 Stainless Steel Roofing Screw
SS Grade 321 Self Tapping Screw
SS Grade 321 Self Tapping Screw
A193 321 SS Eye Screw
A193 321 SS Eye Screw
Stainless Steel UNS S32100 Concrete Screw
Stainless Steel UNS S32100 Concrete Screw
SS 321 Thumb Screw
SS 321 Thumb Screw
321 Stainless Steel Deck Screw
321 Stainless Steel Deck Screw
321 Stainless Steel Wood Screw
321 Stainless Steel Wood Screw
AISI 321 SS Coach Screw
AISI 321 SS Coach Screw
AUNS S32100 SS Countersuck Screw
UNS S32100 SS Countersuck Screw
DIN 1.4541 SS Lag Screw
DIN 1.4541 SS Lag Screw
Type 321 SS Self Drilling Screw
Type 321 SS Self Drilling Screw
AISI 321 Stainless Steel Set Screw
AISI 321 Stainless Steel Set Screw

 

Other Types Of SUS321 Stainless Steel Fasteners

Other Types Of 321 Stainless Steel Fasteners


Stainless Steel Fasteners
Stainless Steel Stud Bolts
321 Stainless Steel Bolts and Nuts
AISI 321 Stainless Steel Anchor Bolts Stockist
SUS321 Stainless Steel Hex Nuts Torque
321 Stainless Steel Tower Bolts Wholesaler
Stainless Steel 321 Hex Nuts
UNS 32100 Stainless Steel U Bolts Supplier
DIN 1.4541 Stainless Steel Stud Strength
AISI 321 Stainless Steel Eye Bolt Manufacturer
321 Stainless Steel Lock Nuts
SUS321 Stainless Steel Stove Bolts Exporter
Stainless Steel 321 Tek Screw
321 SS Roofing Screw
UNS S32100 Stainless Steel Tie Bar
321 Stainless Steel Threaded Rod
ASME SA321 Stainless Steel Spherical Washer
AISI 321 SS Dock Washer
321 Stainless Steel Star Washer
SS 321 Lock Washer

 

Chemical Composition of 321 Stainless Steel Fasteners

Grade
C
Mn
Si
P
S
Cr
Mo
Ni
N
321
min.
max.
-
0.080
-
2
-
1
-
0.045
-
0.030
-
19
-
-
-
13
-
-

 

321 Stainless Steel Fasteners Equivalent Grade

Grade
UNS No
Old British
Euronorm
Swedish SS
Japanese JIS
BS
En
No
Name
321
S32100
321S31
58B, 58C
1.4541
X6CrNiTi18-10
2337
SUS 321

 

Stainless Steel 321 Fasteners Mechanical Properties

Grade
Tensile Strength (MPa) min
Yield Strength 0.2% Proof (MPa) min
Elongation (% in 50mm) min
Hardness
Rockwell B (HR B) max
Brinell (HB)
max
321
515 MPa
205 MPa
40%
95
217

 

AISI 321 Stainless Steel Fasteners Physical Properties

Grade
Density (kg/m3)
Elastic Modulus (GPa)
Mean Coefficient of Thermal Expansion (μm/m/°C)
Thermal Conductivity (W/m.K)
Specific Heat 0-100 °C (J/kg.K)
Electrical Resistivity (nΩ.m)
0-100 °C
0-315 °C
0-538 °C
at 100 °C
at 500 °C
321
8027
193
16.6
17.2
18.6
16.1
22.2
500
720

 

Application of SS 321 Fasteners

  •  EN 1.4541 SS Set Screw uses in Heat Exchangers
  •  321 SS Studs uses in Petrochemicals
  •  SUS321 Screws uses in Gas Processing
  •  SUS321 Bolts And Nuts uses in Pharmaceuticals
  •  321 SS Threaded Rod uses in Sea Water Equipment
  •  UNS S32100 SS U Bolts uses in Spiral Welded tube for burner pipes and flues
  •  DIN 1.4541 Fasteners uses in Aircraft Exhaust Manifolds
  •  EN 1.4541 Nuts uses in Specialty Chemicals
  •  SS 321 Bolts uses in Off-Shore Oil Drilling Companies
  •  321 Stainless Steel Fasteners uses in Pharmaceutical Equipment
  •  AISI 321 Flat Washer uses in Power Generation

 

View 321 Stainless Steel Hex Nuts Dimensions, 321 Stainless Steel Bolts specifications.
Buy 321 SS Hex Bolts, 321 SS Stud Bolt, 321 Stainless Steel Bolts from 321 ss stud bolt suppliers at factory price in India