What is fish bolt in railway
Fish bolt, also known as rail bolt or track bolt, is a type of railway fastener used to connect the ends of two rails, ensuring the fixation and connection of the railway tracks. It is usually used with rail fish plates to connect two rails together, and is often used with spring washer and nut to fasten the rail tightly.
Fish bolt Specification
|
Grade |
4.6 |
5.6 |
8.8 |
10.9 |
|
Material |
Q235 |
35# |
45# |
40Cr |
|
Mechanical properties |
Tensile strength: ≥400Mpa |
Tensile strength: ≥500Mpa |
Tensile strength: ≥800Mpa |
Tensile strength: ≥1000Mpa |
|
Yield strength: ≥240Mpa |
Yield strength: ≥300Mpa |
Yield strength: ≥640Mpa |
Yield strength: ≥900Mpa |
|
|
Elongation: ≥22% |
Elongation: ≥20% |
Elongation: ≥12% |
Elongation: ≥9% |
|
|
Cold bending: 90 degree without crac |
Cold bending: 90 degree without crac |
Cold bending: 90 degree without crac |
Cold bending: 90 degree without crac |
|
|
Surface |
plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing |
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Standard refers |
UIC864-2 |
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Fish bolt types
GNEE supply kinds of fish plate bolt, mainly including button head oval neck and diamond neck fish bolt, anchor bolt, tunnel bolt, Russian standard fish bolt, square head fish bolt, etc. And we can customize all fish bolts according to your specific requirements.
● Button head oval neck fish bolt
|
Diameter |
1/2" |
1/2" |
1/2" |
5/8 |
|
3/4 |
3/4 |
3/4 |
7/8 |
7/8 |
1 |
1 |
1 |
1-1/16 |
1-1/8 |
|
Length |
1-3/4" |
2" |
2-1/4 |
2-1/2 |
3 |
3-1/2 |
4 |
4-1/2 |
5 |
5 |
5-1/2 |
6 |
6 |
6-1/2 |
|
|
Weight (Kg) |
0.097 |
0.1 |
0.112 |
0.183 |
0.328 |
0.339 |
0.356 |
0.559 |
0.593 |
0.8 |
0.839 |
0.879 |
0.995 |
1.186 |
● Diamond neck fish bolt
|
Diameter |
Length |
Weight (Kg) |
|
7/8 |
4-1/2 |
0.563 |
|
7/8 |
5-1/2 |
0.651 |
|
1 |
5-1/4 |
0.889 |
|
1 |
5-3/4 |
0.895 |
|
Note: All fish bolt dimensions given in inches. |
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● Anchor bolt
|
Size |
M16 to M48, L=100 to 500mm |
|
Material |
Q235, C35, C45, 35CrMo, 42CrMo |
|
Standard refers |
DIN529, ISO898-1 |
|
Surface treatment |
Oxide black, Zinc plated, Hot dip galvanized, Dacromet, Sherardized |
|
Application |
Anchored in concrete sleeper for K type fastening system |
● Tunnel bolt
|
Type |
Available by customers drawings and samples |
|
Surface |
Plain (oil ) black. Zin. HDG etc. |
|
Class |
4.6.4.8.8.8.10.9 |
|
Types |
Square flange bolts with round thread, Special curve bolt, Spear bolts with special pitches, etc. |
● Russian standard fish bolt
|
Russia scale fish bolt |
Bolt Details |
|
Size |
27x160 |
|
Material |
Tensile stress 381KN |
|
Standard |
GOST 11530 |
|
Surface treatment |
Plain oiled |
● Square head fish bolt
|
Square head fish bolt |
Bolt Details |
|
Size |
M20, L as ordered |
|
Grade |
4.6, 5.6 |
|
Standard |
DIN5903-2 Type B |
|
Surface treatment |
Zinc plated, hot dip galvanized |
GNEE, a professional fish bolt supplier
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