*Bolt Type Chain Shackle meets the requirements of US Fed. Spec. RR-271D Type IVA Grade A, Class3, it is one kind crane shackle.
*Material Certificate and Testing Certificates available when requested at the time of order
*Rated D shackle is usually be Packed by Carton Box or Gunny Bag.
* Shackle usually including US type shackle , european type shackle according to the standard ,also there are anchor shackle and chain shackle according to the sharp , the common safety factor is 4 times and 6 times WLL , the material including carbon steel , alloy steel , stainless steel etc. the surface finishing including hot dip galvanized , painted etc.the size is 0.33T through 150T .It is usually used in electric power ,metallurgy,petroleum ,mechanical ,railway ,chemical,port ,mine,.buliding etcm.