HTTP for frogs in North America

HTTP for frogs ,also called Twin Tie Plates,Hook Plates,Http For Guard Rail, is used for frogs, guard rails and behind the heel of switches. They are produced to AREMA standard design and widely used throughout North America for standard rail sections. Hook twin tie plate is very versatile for fitting most rail sections. Part of its versatility comes from the pre-drilled slotted holes, which allow it to fit almost any rail section.

Technical Parameter of HTTP for frogs

Material standard: TS-503, we normally use material as Q235

Main size:

H series: H23, H27,H31,H35

L series: L23,L27,L31,L23J,L27J,L31J

LR series:LR23,LR27,LR31 

Photo of HTTP for frogs

Application for HTTP for frogs

Hook twin tie plate is always used in pairs for the turnouts,frogs to ensure the tie spacing.

Mian Type of Hook twin tie plate