... 2.Surface: Electrogalvanized Dee Shackle G2150 1. US type drop forged bolt type dee shackles G-21502. Thin hex head bolt- ... , meet the performance requirements of Federal Specification RR-C-271D Type IVB, Grade A, Class 3 except for those provisions of ... shackle: hot dip galvanized, self colored, electro galvanized, high polished4. Material of bolt type dee shackle: carbon steel, stainless steel 316,304 ...