Pit Posse Tie Down Hook Anchor Rings| D Ring Tie Downs Recessed Trailer With Washers and Mounting Hardware (6,000 Lb. Capacity) 4-Pack LIFETIME WARRANTY- Backed by Pit Posse's 20-year reputation for producing quality cargo products! KIT INCLUDES- 4 recessed pan ring plates,4 backing plates, and 4 hardware sets made up of 16 carriage bolts, 16 lock washers and 16 nuts. INDUSTRY LEADING- 6000lbs breaking strength CORROSION RESISTANT- Made from high quality steel material and zinc plated HEAVY DUTY- Designed for floor applications with 1/4 steel oversized backing plate