Smo 254 Fasteners
| Fasteners Specifications | ASTM A193 / A193, ASME SA193 / SA194 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3 mm to 200 mm |
| Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Size | M1.6 - M12 |
| Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Fasteners Type | Bolts, Nuts, Sockets, Screws, Screw, 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,U- Bolts, Anchor Bolt, Mushroom Head Square Neck Bolts, J Bolts, Wing Screw, T-Head Bolts, Foundation Bolts, Eye Bolt,Structural Bolts. |
|
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.
|
||||
| SMO 254 | Ni | C | Mo | Mn | Si | Fe | Cu | S | P | Cr |
| 17.5 – 18.5 |
0.02 max | 6 – 6.5 |
1 max | 0.8 max | – | 0.5 – 1 | 0.01 max | 0.03 max | 19.5 – 20.5 |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.0 g/cm3 | 1320-1390 ℃ | 300 | 650 | 35 % |
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | SIS | GOST |
| SMO 254 | S31254 | 1.4547 | Z1 CNDU 20.18.06Az | X1CrNiMoCuN20-18-7 | – | 2378 | – |
Taiwan, Egypt, Australia, Lithuania, Israel, Vietnam, Gabon, Croatia, Hong Kong, Estonia, United Arab Emirates, Nigeria, Bolivia, Netherlands, Iraq, United Kingdom, Sweden, China, Bahrain, Pakistan, Sri Lanka, United States, Malaysia, South Africa, Oman, Serbia, Spain, Greece, South Korea, Denmark, Italy, Russia, Algeria, Colombia, Azerbaijan, Iran, Mongolia, Belgium, Iran, Ukraine, Nigeria, Venezuela, Afghanistan, Switzerland, Kazakhstan, Jordan, Trinidad & Tobago, Poland, Morocco, Mexico, Belarus, France, Peru, Philippines, New Zealand, Saudi Arabia, Tunisia, Yemen, Czech Republic, Finland, Libya, Slovakia, Singapore, Hungary, Kenya, Japan, Chile, Costa Rica, Norway, Qatar, Ghana, Austria, Bhutan, Indonesia, Bangladesh, Mexico, Bulgaria, Canada, Thailand, Kuwait, Poland, Angola, Turkey, Chile, Lebanon, Brazil, Portugal, Argentina, Ecuador, Romania