High Quality Railway Fish Bolt Supplier-Various Size&Grade

Additional information

Grade

4.8, 6.8, 8.8, 10.9, 12.9

Model

Φ14×70, Φ16×75, Φ18×90, Φ20×90, Φ22×135, Φ24×135, Φ24×145, Φ24×170, etc.

Standard

GB, DIN, ISO, ANSI/ASTM, B7, BS, JIS etc

Material

Q235, 45#, 40Cr, 20Mntib, stainless steel, etc

Surface Treatment

Plain, black, zinc-plated, or according to customers' requirement

Hot Selling Rail Fish Bolts

High-strength Fish Bolts

Physical properties of high-strength fish bolts：

Tensile Strength	Yield Strength	Elongation
800Mpa	640Mpa	12%

Button Head Oval Neck Fish Bolt

Diameter	Length	Weight (Kg)
1/2″	1-3/4″	0.097
1/2″	2″	0.10
1/2″	2-1/4	0.112
5/8	2-1/2	0.183
3/4	3	0.328
3/4	3-1/2	0.339
3/4	4	0.356
7/8	4-1/2	0.559
7/8	5	0.593
1	5	0.8
1	5-1/2	0.839
1	6	0.879
1-1/16	6	0.995
1-1/8	6-1/2	1.186

Diamond Neck Fish Bolts

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.

Product Description

Fish bolts are also called egg neck bolts, rail joint bolts or rail bolts. They are mainly used for the connection of rail joint splints (fish plates), connecting and tightening the joints of rails to rails, making the track a continuous whole, and ensuring the smoothness and safety of train travel.

As a high-quality railway fastener supplier, Gnee can supply different types of railway bolts at factory prices. In addition to fish bolts, we also provide T bolts, clamp bolts, pinch bolts and other special bolts, etc.

Technical Parameters Of Rail Fish Bolt

Railway Fish bolt
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
Standard refers	UIC864-2

Additional information

Grade	4.8, 6.8, 8.8, 10.9, 12.9
Model	Φ14×70, Φ16×75, Φ18×90, Φ20×90, Φ22×135, Φ24×135, Φ24×145, Φ24×170, etc.
Standard	GB, DIN, ISO, ANSI/ASTM, B7, BS, JIS etc
Material	Q235, 45#, 40Cr, 20Mntib, stainless steel, etc
Surface Treatment	Plain, black, zinc-plated, or according to customers' requirement

Questions About Fish Bolt Installation

What should be paid attention to when installing fish bolts and fish plates?

The contact part of the fish plate with the rail and the bolts should be oiled.
When inserting fish bolts, the nuts must be staggered inside and outside.
The procedure for bolting, if using a four-hole fish plate, first tighten the two in the middle, then the two on the sides, and after tightening the two sides, tighten the two in the middle again.
When tightening the fish bolts, one person should use a 55 cm screw wrench. Do not use a screw wrench that is too long or two people to tighten.
When the fish bolts cannot be put on, use a hammer to hit the two ends of the fish plate to align the eyes. Do not use a hammer to force the fish bolts in.