( U TYPE SHACKLE )-

Hello lets see what is (u type shackle) 

spring shackle while fitting

some Time near the steel strip 

 Thread Of u bolt they  spring eye hol in by sitting his above  A long  thread nut on top of it  

for Lubrication at the nut Greece Nipples stays

        For example 

steel bushing 

spring hanger

threaded u-shackle

neoprence seal

spring eye 

   By included