High Strength Bolt For Railway Track, fish bolts, track bolts for railway fishplates, rail joint bar jointing

High Strength Bolt For Railway Track, fish bolts, track bolts for railway fish plates, rail joint bar jointing

High Strength Bolt For Railway Track, fish bolts, track bolts

High strength bolt is a typical kind of rail bolt that is made of high strength steel. Like other types of rail bolt, high strength bolt is used to connect the ends of rail together. The train operation usually produce huge load to the rail track, and railway track has lateral and horizontal movement. The functions of high strength bolt are prevent the track from movement and ensure the safety. As for the type, most of railroad bolts is high strength bolt, such as Diamond neck track bolt, Rail bolt NF F50-008, Fish bolt, Clip bolt HS26 & HS32, Special bolt, and so on.

High Strength Bolt For Railway Track, fish bolts, track bolts

As we all known, steel rails are connected by the rail bolts and nuts. The strength of railway bolts and nuts will affect the reliability and safety of rail track. High strength bolt has good tightness, which decides it can be widely applied in the railway track system. For normal application, required steel grade of bolt is more than 8.8. The common surface treatments include plain (oiled), Oxide black, Zinc, HDG, etc. To be specific, high strength bolt has characteristics of simple construction, good load-carry capacity, removable, fatigue resistant, etc.

Compared to same standard common railroad bolt, high strength bolt has large bearable load and more applications. What are difference between high strength bolt and common railway bolt?

Raw materials

 

Nut and washer of high strength bolt is made of high strength steel. Common high strength steel includes 35#, 45#, 40MnB, etc. common rail bolt adopt Q235steel.

High Strength Bolt For Railway Track, fish bolts, track bolts

Application of high strength bolt

High strength bolt can be applied to various areas like bridge, railway track or steel structure works. High strength bolt is commonly used in the steel structures and equipment. As For the railway construction, high strength bolt is used to fix the two rails. For example, fish bolt usually work with railway fish plate, and they are used at joint section of two rails.

1. This fish bolt is manufactured as per ASTMA-183. Track bolts come with heavy square nuts and Grade 2 heat treatment, with oval neck and diamond neck.

Tensile Strength Yield Strength Elongation

828Mpa (min) 635Mpa (min) 14%(min)

Material: 45#

Surface: Black

MOQ: 5000PCS

Packing: 200LB keg and wooden pallets or according to clients' requirement

Below are some of our main fish bolt products.

Button Head Oval Neck Track 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 Track 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

Material: Q235 and 45#

Grade: 4.8, 4.6, 5.6, .6.8, 8.8

Surface: Plain, black painting

MOQ: 5000PCS

Packing: Plastic bags and wooden pallets or according to clients' requirement

Nominal Size Thread Length Bolt Length

3/4 2 3-7/8

7/8 2-1/8 4-3/8

15/16 2-5/16 4-5/16

15/16 2-1/8 5

1 2-5/16 4-15/16

1 2-11/16 6-1/16

Note: All dimensions given in inches

Fish Bolt 

2. We produce the fish plate bolt as per AS1085.4-1999. The nominal thread diameter is M20/M22/M24 and the thread of the fish bolts are finished square. A nominal 45 degree chamfer is to be provided to a depth slightly exceeding the depth of the thread, nut shall be in accordance with AS/NZS 1252.

Material: Q235 and 45#

Grade: 8.8

Surface: Plain, black painting 

MOQ: 5000PCS

Packing: Plastic bags and wooden pallets or according to clients' requirement

Chemical composition and mechanical properties are shown below.

C Mn P S

0.55(max) 0.25(min) 0.04(max) 0.04(max)

Tensile Strength Yield Strength Elongation

800Mpa 640Mpa 12%

Fish Bolt 

3. We produce the fish bolts according the BS standard. These fish bolts can be manufactured to mild steel or high tensile steel Grade 8.8 as well as the latest Transnet specifications. Metric and imperial sizes are available and are used for fish plate of BS50, BS60R, BS70A, BS75A, BS75R, BS80A, BS80R, BS90A, BS90R, BS95A, BS95R, and BS95N.

Adhering to our quality first policy, Zhongyue pays great attention to quality control management on fish plate. We have been granted ISO9001-2008 certificates and have received the production license of China's Railway Ministry on railway products. We have a full set of inspection instruments to ensure all our fish bolt products are of high quality and up to customers' requirements.

As a leading manufacturer of rail fastening based in China, Zhongyue also produces many other railway fasteners, such as track spike, sleeper screw, rail anchor, rail joint bar, tie plate, rail clip, elastic rail clip, SKL tension clamp, rail shoulder, and so on.

High Strength Bolt For Railway Track, fish bolts, track bolts