3/8" 1 Ton Anchor Shackle
 
Screw Pin Anchor Shackles Brown Pin, rated (drop forged, hot dip galvanized)
Heat treated carbon steel, quenched and tempered.
Size: 3/8in
Working Load Limit: 1 TON
Weight: 0.31 lbs
US Federal Specs: RR-C-271F