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Railway-related joint plate bolts and nuts

Railway-related joint plate bolts and nuts

Introducing bolts and nuts for rail joint plates used in railways!

At Teikoku Seibou, which has been manufacturing bolts, screws, and nails essential for social infrastructure such as railways, construction, civil engineering, shipbuilding, and aircraft for about 100 years, we handle "joint plate bolts and nuts" used in railway applications. Our company manufactures ordinary steel joint plate bolts and heat-treated joint plate bolts based on JIS E1107, Appendix 1 (regulations) for Whitworth thread joint plate bolts and nuts. 【Types and Uses of Bolts】 ■ Type A - For 30kg (A30) rails: Ordinary joint plates - For 37kg (A37) rails: Ordinary joint plates - For 50kg (A50) rails: Ordinary joint plates ■ Type B - For 30kg (B30) rails: Heat-treated joint plates - For 37kg (B37) rails: Heat-treated joint plates - For 40kgN (B40N) rails: Ordinary joint plates / Heat-treated joint plates - For 50kg (B50) rails: Heat-treated joint plates - For 50kgN (B50N) rails: Ordinary joint plates / Heat-treated joint plates *For more details, please refer to the PDF document or feel free to contact us.

  • Safety and consumables

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P.C. Tie Rod Trapezoidal Screw Bolt / Joint Plate Bolt and Nut 【*Prototype OK】

P.C. Tie Rod Trapezoidal Screw Bolt / Joint Plate Bolt and Nut 【*Prototype OK】

Many successful applications in Shinkansen! Higher strength than cutting processing, and capable of mass production as well as custom orders! We also offer prototyping, so please feel free to consult with us.

♦P.C. Tie Rod Trapezoidal Screw Bolt♦ The "trapezoidal screw/bolt" for concrete ties is manufactured using the "hot-rolled rolling method," which offers superior strength compared to machining. It has already been successfully used in numerous cases for the Shinkansen and can also be used for securing parts such as the hanging sections of concrete walls in civil engineering and underground areas. ★Please feel free to consult us regarding other applications or prototypes. We also design "male threads." 【Features of the Hot-Rolled Rolling Method】 - Maintains the fiber structure of the steel, providing excellent strength - High precision with no eccentricity - Suitable for mass production - Custom products for special shapes/trapezoidal screws are also available ♦Connection Plate Bolt and Nut♦ Standard steel connection plate bolts and heat-treated connection plate bolts. 【Features】 - Heat-treated connection plate bolts are produced in three grades: 5.6, 8.8, and 10.9 - Obtained JIS display permission (certification) ◆Prototype Forged Parts◆ If you provide us with drawings, we can design and prototype molds regardless of quantity! This allows for pre-processing by forging, not only for bolts but also for complex shapes or when you want to reduce excess material in lathe machining. *For more details, please contact us or refer to the catalog.*

  • Concrete wall

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Product Catalog: Joint Plate Bolts and Nuts

Product Catalog: Joint Plate Bolts and Nuts

Bolts and nuts for rail joint plates used in railways.

"Joint plate bolts and nuts" refer to ordinary steel joint plate bolts and heat-treated joint plate bolts. Our company manufactures them based on JIS E1107 for Whit threads in joint plate bolts and nuts. JIS E1107, E1113, and E1114 have been integrated and announced as the new JIS E1107. 【Features】 ○ Heat-treated joint plate bolts are produced in three types: 5.6, 8.8, and 10.9 ○ Obtained JIS display permission (certification) *For urgent or emergency inquiries, please contact us through our website for technical questions.

  • Joints between components
  • Work tools
  • Road construction

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