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Fish Bolt

Fish bolt is used for connecting the rail ends with the help of rail joints. Each rail joint needs at least two fish bolts according to the rail standard, and the bolt should be in proper size and suitable place. Rail bolt is usually used with spring washer and nut to fasten the rail tightly. The size of rail bolts varies as the variation of the rails or fish plate. Fish bolts can be classified into many types such as BHON fish Bolt, Cup Head Oval Neck Fish Bolt, Heavy Hex Head Frog Bolts, Anchor Bolt, Tunnel Bolt, etc. AGICO provide various types of rail bolt suited for different standard rails such as BS, ASTM and Din, etc. 

fish bolt

Specification of AGICO Fish Bolt: 

  • Standards: GB, DIN, ISO, ANSI/ASTM, B7, BS, JIS etc
  • Grade: 4.8, 6.8, 8.8, 10.9, 12.9
  • Material: Q235, 45#, 40Cr, 20Mntib, stainless steel, etc
  • Size: M12-M24 or upon customer request
  • Length: 45mm-145mm or upon customer request
  • Surface: Plain, black, zinc-plated, or according to customers' requirement
  • Usage: It is used to fix the rail fish plates onto rails
  • Non-standard OEM is available if the buyer provides a drawing or sample
  • Samples: Samples are free
Model Specification Material Unit weight Surface Treatment
M24*135 Fish bolt   Q235 0.65kg/pc Plain or according to the requirement of customers
AREMA Fish bolt 7/8”*5-1/2” 45# 0.417kg/pc Plain
AREMA Fish bolt 1”*5-1/4” 45# 0.579kg/pc Plain
AREMA Fish bolt 1”*5-3/4” 45# 0.621kg/pc Plain
AREMA Fish bolt 1”*5-7/8”  45# 0.631kg/pc Plain

1.BHON Fish Bolt

Material Q235, 35#, 45#,, 40Cr , C45
Grade 4.8, 8.8, 10.9
Size 22×135, 24×135, 24×145, etc.
Surface Plain (oiled), Oxide black, Zinc, HDG
BS standard, R54 rail in Indonesia, AS1085.4-1999,
Russian standard, AREMA standard, etc.

2.Cup Head Oval Neck Fish Bolt

cup head oval neck fish bolt
Size M18, M20, M22, M24, L as ordered
Materials Middle carbon steel
Standard refers AS 1085.4, 6&7
Surface treatment Black

3.Heavy Hex Head Frog Bolts

Size Dia.3/4"-1-3/8", Length up to 30"
Material A325
Standard refers ASTM A325
Surface treatment Black, Zinc plated

4.Anchor Bolt

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

5.Tunnel Bolt

tunnel bolt
Type available by customers drawings and samples
Surface Plain (oil ) black.Zin .HDG etc.
Types Square flange bolts with round thread, Special curve bolt, Spear bolts with special pitches, etc.

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