Button Head Oval Neck Track Bolt
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Button Head Oval Neck Track Bolts for Sale
Specifications of Button Head Oval Neck Track Bolts:
- Standard: AREA 1991 and SAEJ 429 Grade 5
- Materials: 45#
- Size: 1/2, 3/4, 7/8'', 15/16, 1'', 1-1/8'', 1-1/16"
- Surface: Zinc plated, HDG, plain oiled
- Supply Ability: 300 tons per day
- MOQ: 500 pieces
- Head Type: Round Head
- Head Details: With Oval Neck
Parameters of Button Head Oval Neck Track Bolts
Button head oval neck track bolt, also known as oval neck track bolts, is a type of fastener specifically used in high-stress environments. It can be used with rail nuts, rail washers, and rail joint bars to secure the track to the sleepers, providing stability and safety for the railway. The unique head design of the button head oval neck track bolt can reduce friction between mechanical components and decrease resistance. The oval neck allows the button head oval neck track bolt to fit more snugly in the hole, preventing loosening caused by vibrations during train operation. Its shank is fully threaded, ensuring secure installation. The button head oval neck track bolt is high-strength steel, providing excellent durability and compressive strength. Additionally, the surface is treated with galvanization or other coatings to enhance corrosion resistance and extend its service life.
The size of oval neck track bolts varies according to the different requirements of the track cross-section. To determine the appropriate diameter and length of oval neck track bolts, it is necessary to refer to and check the applicable railway standards in detail. These standards provide specific technical specifications and requirements, ensuring that the selected oval neck track bolts can meet the installation and safety requirements of the track in practical applications, thereby guaranteeing the overall stability and reliability of the railway system. Alternatively, you can consult AGICO. Our consulting services are always available online, and our professional technicians can help you solve problems and develop cost-effective oval neck track bolts solutions according to your needs.
| Diameter | Length | Thread | Weight |
|---|---|---|---|
| 3/4″ | 3″ | 10 | 0.21 |
| 3/4″ | 3-1/2 | 10 | |
| 3/4″ | 4″ | 10 | |
| 3/4″ | 4-1/2″ | 10 | |
| 7/8″ | 4-1/2″ | 9 | |
| 7/8″ | 5″ | 9 | |
| 1″ | 5″ | 8 | 0.576 |
| 1″ | 5-1/2″ | 8 | 0.616 |
| 1″ | 6″ | 8 | 0.652 |
| 1-1/16″ | 6″ | 7 | |
| 1-1/16″ | 6-1/2″ | 7 | |
| 1-1/8′ | 6″ | 6 | 0.862 |
| 1-1/8′ | 6-1/2″ | 6 | |
| 7/8″ | 4-1/2″ | 9 | |
| 7/8″ | 5″ | 9 | |
| 1″ | 5″ | 8 | 0.576 |
| 1″ | 5-1/2″ | 8 | 0.616 |
Testing and Quality Control of Button Head Oval Neck Track Bolts
The quality inspection process of the button head oval neck track bolt includes dimensional inspection, mechanical performance testing, heat treatment inspection, surface treatment inspection, fatigue testing, and final inspection. Through rigorous quality testing, each button head oval neck track bolt is ensured to meet standard requirements, providing customers with reliable railway fastener solutions.
1. Raw Material Inspection
It is very important to inspect the raw materials before making the button head oval neck track bolt. The high-strength steel used needs to undergo chemical composition analysis and mechanical performance testing. A spectrometer is used to detect the chemical composition of the material, ensuring it falls within the specified chemical composition range. Mechanical performance testing includes tensile strength, yield strength, elongation, and hardness tests, as these indicators directly affect the final performance of the button head oval neck track bolt.
2. Dimensional Inspection
Using precise measuring tools, measure the head, neck, and shank of the button head oval neck track bolt to ensure they are within tolerance. Use a thread gauge to check the accuracy and consistency of the threads, avoiding installation failure or insecure installation due to non-compliant threads.
3. Mechanical Performance Testing
After the button head oval neck track bolt is formed, mechanical performance testing is conducted to assess its strength and toughness. Using a tensile testing machine, the yield strength and tensile strength of the bolts are tested to ensure that the oval neck track bolts can withstand the specified loads. A Rockwell hardness tester or Vickers hardness tester is used to measure the surface hardness of the bolts, checking their compressive strength and wear resistance.
4. Appearance Inspection
This is the final step before packaging the button head oval neck track bolt. It is necessary to check the surface of the oval neck track bolts for cracks, burrs, and uneven plating to ensure the bolts’ appearance. Every inspection step is recorded to ensure the product’s performance and quality.
