Carpenter's alloy which is chemically known as Alloy 20 is a high-quality alloy that can be utilized for a variety of applications. The nickel percentage of this alloy is significant, accounting for up to 32% of the overall alloy. Chromium, carbon, copper, molybdenum, manganese, columbium, silicon, iron, and molybdenum are all included in the alloy, along with carbon, copper, molybdenum, manganese, columbium, silicon, iron, and molybdenum. A little amount of columbium is required for the stabilization of the alloy. This aids in the alloy's smooth welding and has a high thermal resistance. Intergranular corrosion can be resisted by Alloy 20 screws and supports appliances that have a similar requirement. Alloy 20 screws can be made using either cold or hot forming techniques. There was a requirement for an alloy that provided high resistance to stress cracking in chloride solutions, this is the main reason for the design of Alloy 20 screws.

Alloy 20 Screws
Table of Content

Carpenter 20 Socket Head Cap Screws, Ped Approved Manufacturer of Alloy 20 Industrial Screws, Alloy 20 Hex Head Cap Screws, Alloy 2.4660 Screws, Nickel Alloy 20 Square Head Screws, Alloy 20 Flange Head Screws, Type Incoloy® Alloy 20 Screws At Best Price In India, Alloy 20 Screws, Inconel 20 Screws Manufacturers, UNS N08020 Screws, Alloy 20 Screws Supplier in Mumbai, India.

Alloy 20 screws provide great resistance to stress corrosion in chlorine solutions. This is the consequence of the high nickel percentage in its alloy. Strong acids, particularly sulfuric acid, are easily resisted from corrosion by Alloy 20 screws. Threaded screws, blind rivet screws, panel screws, socket set screws, and other types of Alloy 20 screws are available. In an annealing solution, alloy 20 socket screws are employed at temperatures ranging from 1800 to 1850 degrees Fahrenheit. The alloy 20 Blind rivet screws cater to the corrosion resistance needs of acidic environments like nitric acid, dilute acetic acid, and most important, concentrated sulfuric acid. Chemicals for flue-gas desulfurization, petroleum, pharmaceuticals, and metal cleaning are sectors that employ Alloy 20 screws.

Zeon Fasteners LLP are reputed dealers in Alloy 20 screws. In 2006, we began our Duplex steel stocking program to meet the needs of a variety of sectors. Our items have been thoroughly tested, and our services can be relied upon. We are a Mumbai-based stockist that specializes in exotic alloys.

Alloy 20 Screw

Specification For Alloy 20 Bolts

Standard: ASTM B473
Size : Cold Forming process: M2-M24 Hot Forging process: M24-M100, 1-1/2” Dia, up to 1100mm lg CNC Machining for M100 / 4” Dia, up to 1500mm lg Manufacturing M2, M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M42, M45, M48 to M160 and Custom Metric Hex Nuts
Nuts Size Metric: Dia: M10 – M110 / Length: 12 – 1200MM
Nuts Size Inch: Dia: 1/2″ – 4.0″ / Length: 1/2″ – 52″
Length: 3 to 200 mm
Standard: ISO, IS, ANSI, ASME, UNI, ASTM, DIN, JIS, IS, GB, BS, CSN, EU, IFI, PN, and all International Standards
DIN Standard : DIN 934, DIN 982, DIN 985, DIN 936, DIN 929, DIN 1587, DIN 439, DIN 315
Threads: METRIC, BSW, UNC, UNF, BSF or as required
Nuts Forming: Hot Forged Nuts & Cold Forged Nuts
UTS – Unified Thread Standard: UNC, UNF, NPT, UNS, UNEF, NPTF
ASME Standard: ASME B18.2.2 / ASME B18.16.6 /ASME B18.16.4 / ASME B18.2.2
Certification: Dual Certified As per ASTM & ASME Codes

Equivalent Of Alloy 20 Screws

STANDARD WERKSTOFF NR. UNS EN AFNOR
Alloy 20 2.4660 N08020 NiCr20CuMo Z2NCUD31-20AZ

Alloy 20 Screws Chemical Composition

Grade C Mn Si S Cu Ni Cr Fe Mo P
Alloy 20 0.07 max 2.00 max 1.00 max 0.035 max 3.00 – 4.00 32.00 – 38.00 19.00 – 21.00 29.85 min* 2.00 – 3.00 0.045 max

Alloy 20 Screws Mechanical Properties

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Alloy 20 8.1 g/cm3 1443 °C (2430 °F) Psi -80,000, MPa -551 Psi – 35,000, MPa – 241 30 %

Alloy 20 Wood Screws Dimension

Wood Screws: Slotted & Phillips Flat Head Dimensions (ASME B18.6.1)

Nominal Size*

Phillips Driver Size
Head Diameter (A)
Head Height (H)
Width of Slot (J)
Depth of Slot (T)
Dimension of Recess
Max
Min
Ref
Max
Min
Max
Min
Dia. Max (M)
Dia. Min (M)
Depth Max (G)
Depth Min (G)
Width Min (N)
2
1
.172
.147
.051
.031
.023
.023
.015
.102
.089
.063
.047
.017
3
1
.199
.141
.059
.035
.027
.027
.017
.107
.094
.068
.052
.018
4
1
.225
.195
.067
.039
.031
.030
.020
.128
.115
.089
.073
.018
5
2
.252
.220
.075
.043
.035
.034
.022
.154
.141
.086
.063
.027
6
2
.279
.244
.083
.048
.039
.038
.024
.174
.161
.106
.083
.029
7
2
.305
.268
.091
.048
.039
.041
.027
.189
.176
.121
.098
.030
8
2
.332
.292
.100
.054
.045
.045
.029
.204
.191
.136
.113
.032
9
2
.358
.316
.108
.054
.045
.049
.032
.214
.201
.146
.123
.033
10
3
.385
.340
.116
.060
.050
.053
.034
.258
.245
.146
.123
.034
12
3
.438
.389
.132
.067
.056
.060
.039
.283
.270
.171
.148
.036
14
3
.507
.452
.153
.075
.064
.070
.046
.283
.270
.171
.148
.036
16
3
.544
.485
.164
.075
.064
.075
.049
.303
.290
.191
.168
.039
Wood Screws: Round Head Dimensions (ASME B18.6.1)

Nominal Size*

Phillips Driver Size
Head Diameter (A)
Head Height (H)
Width of Slot (J)
Depth of Slot (T)
Dimension of Recess
Max
Min
Max
Min
Max
Min
Max
Min
Dia. Max (M)
Dia. Min (M)
Depth Max (G)
Depth Min (G)
Width Min (N)
2
1
.162
.146
.069
.059
.031
.023
.048
.037
.114
.101
.064
.042
.018
4
2
.211
.193
.086
.075
.039
.031
.058
.044
.130
.117
.083
.063
.019
5
2
.236
.217
.095
.083
.043
.035
.063
.047
.154
.141
.074
.046
.027
6
2
.260
.240
.103
.091
.048
.039
.068
.051
.162
.149
.084
.056
.027
7
2
.285
.264
.111
.099
.048
.039
.072
.055
.170
.157
.092
.066
.028
8
2
.309
.287
.120
.107
.054
.045
.077
.058
.178
.165
.101
.075
.030
9
2
.334
.311
.128
.115
.054
.045
.082
.062
.186
.173
.110
.084
.030
10
2
.359
.334
.137
.123
.060
.050
.087
.065
.195
.182
.119
.093
.031
12
3
.408
.382
.153
.139
.067
.056
.096
.073
.249
.236
.125
.099
.032
14
3
.457
.429
.170
.155
.075
.064
.106
.080
.265
.252
.142
.116
.034
Wood Screws: Oval Head Dimensions (ASME B18.6.1)

Nominal Size*

Phillips Driver Size

Head Diameter (A)
Head Height (H)


Width of Slot (J)
Depth of Slot (T)
Dimension of Recess
Max
Min
Side Height (Ref.)
Total Height Max
Total Height Min
Max
Min
Max
Min
Dia. Max (M)
Dia. Min (M)
Depth Max (G)
Depth Min (G)
Width Min (N)
4
1
.225
.195
.067
.104
.084
.039
.031
.059
.049
.136
.123
.094
.077
.019
5
2
.252
.220
.075
.116
.095
.043
.035
.067
.055
.158
.145
.085
.061
.028
6
2
.279
.244
.083
.128
.105
.048
.039
.074
.060
.178
.165
.105
.080
.030
8
2
.332
.292
.100
.152
.126
.054
.045
.088
.072
.205
.192
.131
.106
.033
9
2
.358
.316
.108
.164
.137
.054
.045
.095
.078
.216
.203
.144
.119
.034
10
3
.385
.340
.116
.176
.148
.060
.050
.103
.084
.261
.248
.142
.118
.037
12
3
.438
.389
.132
.200
.169
.067
.056
.117
.096
.283
.270
.165
.140
.040

Diameter Of Alloy 20 Wood Screws Thread & Body

Wood Screws: Thread & Body Diameter – Cut & Rolled Thread Types

Nominal Size* or Basic Screw Diameter

Threads Per Inch
Major Thread Diameter (D)

Body Diameter – (E) Cut Thread
Body Diameter – (E) Rolled Thread
Thread Depth (F)
Max
Min
Max
Min
Max
Min
Min
2
.086
26
.090
.079
.090
.079
.075
.064
.010
3
.099
24
.103
.092
.103
.092
.086
.075
.014
4
.112
22
.116
.105
.116
.105
.095
.084
.016
5
.125
20
.129
.118
.129
.118
.107
.096
.018
6
.138
18
.142
.131
.142
.131
.118
.107
.020
7
.151
16
.155
.144
.155
.144
.127
.116
.022
8
.164
15
.168
.157
.168
.157
.136
.125
.023
9
.177
14
.181
.170
.181
.170
.147
.136
.026
10
.190
13
.194
.183
.194
.183
.157
.146
.030
12
.216
11
.220
.209
.220
.209
.176
.165
.031
14
.242
10
.246
.235
.246
.235
.201
.190
.035
16
.268
9
.272
.261
.272
.261
.214
.203
.038

Torque chart of Alloy 20 Screw

Torque Specifications
Screw 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
Screw 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
Screw 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
Screw 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

Dimensions of Alloy 20 Socket Head Cap Screw

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

Dimensions of Alloy 20 Countersunk Screw

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

Various Types of Alloy 20 Screws

Alloy 20 Flat Head Cap Screw

Alloy 20 Flat Head Cap Screw

  • Alloy 2.4660 Flat Head Cap Screw
  • UNS N08020 Flat Head Cap Screw
  • Nickel Alloy 20 Flat Head Cap Screw
  • Carpenter 20 Flat Head Cap Screw
  • Nickel Alloy 20 Flat Head Cap Screw
Alloy 20 Socket Head Cap Screw

Alloy 20 Socket Head Cap Screw

  • Carpenter 20 Socket Head Cap Screw
  • UNS N08020 Socket Head Cap Screw
  • Inconel 20 Socket Head Cap Screw
  • Nickel Alloy 20 Socket Head Cap Screw
  • Alloy 2.4660 Socket Head Cap Screw
Alloy 20 Socket Set Screw

Alloy 20 Socket Set Screw

  • Alloy N08020 Socket Set Screw
  • UNS N08020 Socket Set Screw
  • Alloy 2.4660 Socket Set Screw
  • Inconel 20 Socket Set Screw
  • Carpenter 20 Socket Set Screw
  • Alloy 20 Socket Set Screw
  • Nickel Alloy 20 Socket Set Screw
Alloy 20 Flange Head Screw

Alloy 20 Flange Head Screw

  • UNS N08020 Flange Head Screw
  • Carpenter 20 Flange Head Screw
  • Nickel Alloy 20 Flange Head Screw
  • Alloy N08020 Flange Head Screw
  • Alloy 2.4660 Flange Head Screw
  • Inconel 20 Flange Head Screw
Alloy 20 Round Head Screw

Alloy 20 Round Head Screw

  • UNS N08020 Round Head Screw
  • Alloy 2.4660 Round Head Screw
  • Carpenter 20 Round Head Screw
  • Alloy N08020 Round Head Screw
  • Inconel 20 Round Head Screw
  • Nickel Alloy 20 Round Head Screw
Alloy 20 Mushroom Head Screw

Alloy 20 Mushroom Head Screw

  • Alloy N08020 Mushroom Head Screw
  • Inconel 20 Mushroom Head Screw
  • Nickel Alloy 20 Mushroom Head Screw
  • Alloy 20 Mushroom Head Screw
  • UNS N08020 Mushroom Head Screw
  • Alloy 2.4660 Mushroom Head Screw
  • Carpenter 20 Mushroom Head Screw

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We offer These Alloy 20 Screws as per DIN, ISO, JIS or ANSI Standard.

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Ready Stock Of Alloy 20 Screws

  • Alloy N08020 Mushroom Head Screws
  • Nickel Alloy 20 Counter Sunk Screws
  • Alloy 20 Industrial Screws
  • Alloy 20 Hex Screws
  • Alloy 20Cb-3® Screws
  • 20 Alloy Oval Head Screws
  • Alloy 20 Button Head Screws
  • Alloy 20 Metric Screws
  • Alloy 20 Shoulder Screws
  • Inconel 20 Hex Head Screws
  • Alloy 20 Hexagon Socket Head Cap Screws
  • Nickel Alloy 20 Screws
  • Alloy 20Cb-3® Square Head Screws
  • Alloy 20 Self Drilling Screws Sized in Inches
  • Carpenter 20 Bearing Screws
  • Alloy 20 Impeller Screws

Alloy 20 Screws Applications and Uses

We Serve Application Industry

Chemical Industry
Petrochemical Industry
Oil & Gas Industry
Marine Industry
Power Generation Industry
Sugar Industry
Marine Industry
Pharmaceuticals Industry
Cement Industry
Dairy Industry
Food Processing Industry
Paper & Pulp Industry
Offshore & Onshore Services

Chemical Industry Oil and Gas Industry Petrochemical Industry Power Generation Industry Cement Industry Food Processing Industry

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