321 Stainless Steel bolts and Fasteners

UNS S32100 Hex Nuts and Bolts supplier

Stainless Steel 321 Fasteners
Stainless Steel 321 Fasteners
DIN 1.4541 Bolts
DIN 1.4541 Bolts
UNS S32100 Stud Bolts
UNS S32100 Stud Bolts
321 Stainless Steel Nuts
321 Stainless Steel Nuts
SS 321 Hex Bolts
SS 321 Hex Bolts
321 SS Threaded Rod
321 SS Threaded Rod

 

Wide size range in ASTM A193 Stainless Steel 321 Stud Bolt and DIN 1.4541 Threaded Rod

 

 

Stainless Steel 321 Fasteners are strong and have 276MPa minimum yield strength and 621MPa minimum tensile strength. The material has up to 1399 degrees Celsius melting point and can have very high operating temperatures. Micro Metals is a leading manufacturer and supplier of the fasteners such as the 321 Stainless Steel bolts in various dimensions and types. The fasteners are used to connect other components together.

They range in type as eye bolt, structural bolt, square nut, hex domed cap nuts, machine screws, studs, bolts, socket screws and SS 321 Hex Bolt. The different shapes allow for the fasteners to function differently. The material for the 321 grade is made up of carbon, 17% chromium, iron, manganese, nitrogen, 9% nickel, phosphorus, sulfur, silicon and titanium. The 0.7% titanium is added in the stainless steel 321 Nuts and Bolts for stabilization.

It also provides the extra strength, corrosion resistance and oxidation resistance to the material. The material can operate in the range of 427 degrees to 816 degrees Celsius temperature. So the ASTM A193 Stainless Steel 321 Stud Bolt  and other types are suitable for elevated temperature services. The fasteners without a specified head type are called the SS 321 Threaded Rod and it is useful in applications where the space is limited and the fasteners has to be embedded into other components. Please contact us to get a complete price list of fasteners such as the 321 SS Screw and more details.

 

 


Are you looking for PED Approved Manufacturer for your Need of 321 Stainless Steel Fasteners

 

Specification And Material Grade Of Stainless Steel 321 Fasteners

 Material Specification ASTM A194, ASME SA193, UNS S32100 Bolts
Bolts, Studs Threads: METRIC, BSW, BSF, UNC, UNF or as required
In Form of Hex, Square, Round, Threading as per Gauge Etc.
Head drive Phillips, Slotted, Phillips/Slot, Six-Lobe, etc
Bolts Size M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36 to M160
SS 321 Fasteners Standard: ANSI – American National Standards Institute

  • ANSI B 18.2.4 2M
  • ANSI B 28.2.4 1M
  • SS 304l Stud Bolt length are defined in ASME B16.5 standard
  • SS 304l Hex nuts are defined in ASME B18.2.2
  • ASME B18.5

DIN: DIN 931, DIN 933, DIN 934, DIN 970

UTS – Unified Thread Standard : UNC, UNF, UNEF, UNS, NPT, NPTF

ISO – International Organization for Standardization : ISO 4032, ISO 4033, JIS standards

Standard DIN, UNI, ISO, JIS, GB, IS, BS, ASME, ANSI, ASTM and all International Standards
Length 3 mm to 200 mm
Test Certificate: Manufacturer Test Certificate as per EN 10204 / 3.1
Source of raw materials Tata Steel, JSPL, RINL, Usha Martin, Dhamm Steel, Mukund Steel etc.
Scope Of Manufacture
  • Hot Forged , Nut / Bolt; up to M36 / 1-1/2” Dia, up to 1100mm lg
  • CNC Machined , Nut / Bolt; up to M100 / 4” Dia, up to 1500mm lg
Surface Coating
  • Teflon Coated Fasteners
  • Phosphate Coated Fasteners
  • Zinc Coated Fasteners
  • Ptfe Coated
  • Xylon Coated Fasteners
  • Cadmium Coated Fasteners
  • Hot Dipped Galvanizing Coated Fasteners

All surface finishes offered including Geomet & PTFE, Galvanised, Zinc, Electroless Nickel, Sherardized, Dacromet

Packing IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request
Production process M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element
Stainless Steel 321 Fasteners Type U- Bolts, Anchor Bolt, Mushroom Head Square Neck Bolts, J Bolts, Wing Screw, T-Head Bolts, Foundation Bolts, Eye Bolt,Structural Bolts, Bolts, Nuts, Sockets,Studs, Socket Screw, Hex Set Screw, Cap Screw, Machine Screw, Pan Head Screw, Allen Cap screw, Socket Head Cap Screw, Wing Screw, Spring Washers, Washers, Studs, Marine Anchors, Anchors, Hexagon Nut, Nut, Hex Coupling Nut, Hex Nut, Square Nut, Hex Domed Cap Nuts, Hex Head Bolts, Stud Bolts, Socket Hexagon Head Screw
Surface finishing Zinc (yellow, white, blue, black), black oxide,
Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: Passivated
Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Stainless Steel, Mechanically Applied coating and some special one like DACROMET

 

Application of SS 321 fasteners

Application of SS 321 Fasteners

Our Stainless Steel 321 Fasteners Are Installed In Power Plant

 

Dimensions Standard of 321 Stainless Steel Bolts

**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

 

Most Frequently Buy 321 Stainless Steel Fasteners

Stainless Steel 321 Nuts and Bolts
Stainless Steel 321 Nuts and Bolts
Stainless Steel 321 Bolts and Nuts
Stainless Steel 321 Bolts and Nuts
Stainless Steel 321 Exhaust Bolts
Stainless Steel 321 Exhaust Bolts
Stainless Steel 321 Hex Bolts
Stainless Steel 321 Hex Bolts
Stainless Steel 321 Stud Bolts
Stainless Steel 321 Stud Bolts
Stainless Steel 321 M10 Bolts
Stainless Steel 321 M10 Bolts
SS 321 U Bolts
SS 321 U Bolts
Stainless Steel 321 Lag Bolts
Stainless Steel 321 Lag Bolts
Stainless Steel 321 Dowel Pins
Stainless Steel 321 Dowel Pins
SS 321 Spring Pin
SS 321 Spring Pin
Stainless Steel 321 Studs
Stainless Steel 321 Studs
Stainless Steel 321 Exhaust Studs
Stainless Steel 321 Exhaust Studs
Stainless Steel 321 Anchor Bolt
Stainless Steel 321 Anchor Bolt
Stainless Steel 321 Square U Bolts
Stainless Steel 321 Square U Bolts
SS 321 Carriage Bolts
SS 321 Carriage Bolts
SS 321 Countersunk Bolts
SS 321 Countersunk Bolts
Stainless Steel 321 Threaded Rod
Stainless Steel 321 Threaded Rod
SS 321 Threaded Inserts
SS 321 Threaded Inserts
Stainless Steel 321 Threaded Stud
Stainless Steel 321 Threaded Stud
Double End Threaded Rod
Double End Threaded Rod
Stainless Steel 321 Flat Head Screws
Stainless Steel 321 Flat Head Screws
SS 321 Machine Screws
SS 321 Machine Screws
Stainless Steel 321 Self Tapping Screws
Stainless Steel 321 Self Tapping Screws
SS 321 Self Drilling Screw
SS 321 Self Drilling Screw
Stainless Steel 321 Washers
Stainless Steel 321 Washers
Stainless Steel 321 Flat Washers
Stainless Steel 321 Flat Washers
SS 321 Belleville Washers
SS 321 Belleville Washers
SS 321 Spring Washers
SS 321 Spring Washers
Stainless Steel 321 Nuts and Washers
Stainless Steel 321 Nuts & Washers
SS 321 Rings
SS 321 Rings
Stainless Steel 321 Springs
Stainless Steel 321 Springs
SS 321 Hex Head Bolts
SS 321 Hex Head Bolts
SS 321 Nord Lock Washers
SS 321 Nord Lock Washers
Stainless Steel 321 Hex Nuts
Stainless Steel 321 Hex Nuts
SS 321 Barrel Nuts
SS 321 Barrel Nuts
SS 321 Wheel Nuts
SS 321 Wheel Nuts
Stainless Steel 321 Socket Head Cap Screws
Stainless Steel 321 Socket Head Cap Screws
SS 321 Set Screws
SS 321 Set Screws
Stainless Steel 321 Cap Screws
Stainless Steel 321 Cap Screws
Stainless Steel 321 Hex Cap Screws
Stainless Steel 321 Hex Cap Screws

 

321 Stainless Steel Nuts
Sizes

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.

 

Don’t forget to check Dimensions of ASME SA193 SUS 321 Hexagon socket head cap screw in full thread and half thread

 

321 Stainless Steel Screws Size Chart

Size Chart of 321 Stainless Steel Screws

 

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
Buy 321 Stainless Steel Flange bolts in the form of Hex, round and square as per DIN, ANSI, JIS standards.

 

UNS S32100 Fasteners Equivalent Grades

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

321H

S32109

321S51

1.4878

X10CrNiTi18-10

SUS 321H

 
Call for Sample of 321S31 Stainless Steel Fasteners As Per Material Test certificate EN 10204 / 3.1

 

Mechanical standard of type 321 stainless steel fasteners

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

205

40

95

217

321H

515

205

40

95

217

321H also has a requirement for a grain size of ASTM No 7 or coarser

 

Chemical Composition Standard Of SS 321 nut bolt

Grade

C

Mn

Si

P

S

Cr

Mo

Ni

N

Other

321

min.

max

0.08

2.00

0.75

0.045

0.030

17.0

19.0

9.0

12.0

0.10

Ti=5(C+N)

0.70

321H

min.

max

0.04

0.10

2.00

0.75

0.045

0.030

17.0

19.0

9.0

12.0

Ti=4(C+N)

0.70

 

Physical Properties of 321 Stainless Steel bolts

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

 

321 Stainless Steel Bolts Electrical Properties

Electrical Resistivity 7.2e-005 ohm-cm 7.2e-005 ohm-cm
Magnetic Permeability Max 1.02 Max 1.02 H = 200 Oersteds, Annealed

 

Thermal Properties of type 321 stainless steel fasteners

CTE, linear 20°C 16.6 µm/m-°C 9.22 µin/in-°F 0 to 100°C
CTE, linear 20°C 20.2 µm/m-°C 11.2 µin/in-°F to 871°C
Heat Capacity 0.5 J/g-°C 0.12 BTU/lb-°F 0°C to 100°C
Thermal Conductivity 16 W/m-K 111 BTU-in/hr-ft²-°F 100°C
Thermal Conductivity 22 W/m-K 153 BTU-in/hr-ft²-°F 500°C

 

Most Basic Fasteners Weight Chart

 

We provide SS 321 Fasteners with Following Test Certificates

  • Third Party Inspection Report, etc
  • Raw Materials Certificate
  • EN 10204/3.1B
  • 100% Radiography Test Report