What is the purpose of a fish bolt？

Fish bolt belongs to the series of rail bolt, or track bolt, which are used to fix 2 fish plate connections onto 2 rail tracks, GNEE RAIL fabricate fish bolt using high quality steel materials,such as Q235, 45#, 40Cr, 20Mntib,even stainless steel, covers international standards according to BS, ASTM and DIN, among others.

 

Railroad Fish Bolt Specifications

 

 

Railway Fish bolt
Grade	4.6	5.6	8.8	10.9
Material	Q235	35#	45#	40Cr
Mechanical	Tensile strength: ≥400Mpa	Tensile strength: ≥500Mpa	Tensile strength:≥800Mpa	Tensile strength: ≥1000Mpa
properties	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
Standard refers	UIC864-2

 

 

Dimension	Weight (Kg)
M22 ×55/40 Nut M22/H22/S39	0.45
M22 ×65/45 Nut M22/H22/S39	0.475
M22 ×90/45 Nut M22/H22/S39	0.549
M22 ×55/40 Nut M22/H22/S39	0.469
M22 ×65/45 Nut M22/H22/S39	0.503
M22 ×90/45	0.577

If you have special requirements for dimensions or higher strength materials, please contact us for special custom production.

 

What is the purpose of a fish bolt?

 

The purpose of a fish bolt is to fasten two steel railway rails together at the joint, using a fishplate (or splice bar) to connect them. This connection is crucial for maintaining the integrity of the track, and the bolts are designed to withstand the stress of passing trains.

 

 

Connecting rails: Fish bolts pass through holes in the ends of two rails and the fishplate, holding them together horizontally and vertically.

 

Ensuring safety: By tightly securing the rails, fish bolts prevent the joint from becoming loose, which is critical for preventing accidents and ensuring a safe, smooth ride for trains.

 

Withstanding stress: They are made from high-carbon steel and have sufficient strength to avoid bending under the considerable force of moving trains.

 

Part of a larger system: Fish bolts are used in conjunction with nuts and often spring washers to create a complete fastening system for rail joints.

 

GNEE RAIL offers different kinds of railway fasteners to meet client's requirements, such as Elastic Rail Clip and Clamp, Rail Screw Spike, Plastic Dowel, High Tensile Track Bolt with Nut, Rail Base(Tie) Plate, Rail Fish Plate, Railway Shoulder(Insert), Fish Bolt, Railroad Rubber and EVA Pad, etc. Samples and drawings provided by customer, we will manufacture qualified products accordingly.

Click here to obtain the detailed product catalog of GNEE RAIL.