3/4" 4.75 Ton Anchor Shackle
 
Screw Pin Anchor Shackles Brown Pin, rated (drop forged, hot dip galvanized)
Heat treated carbon steel, quenched and tempered.
Size: 3/4in
Working Load Limit: 4 3/4 TON
Weight: 2.35 lbs
US Federal Specs: RR-C-271F