Lonffery 4 Pack Recessed D-Ring Tie Down Anchors 6000 lb. Capacity Heavy Duty Kit for Trailer or Deliveries Black

4 Complete Black Sets of D-rings – The package includes 4 black backing support plates in 4-7/8″ x 4-1/2″ 4 recessed D-rings in 3″ x 3-1/4″ 16 carriage bolts and 16 self locking nuts. The 1/2″ x 1/2″ square bolting holes are perfect punch to receive carriage bolts to provide a smooth surface. 6000 lbs Assembly Break Strength – These heavy-duty D-rings are made of high quality steel with zinc coated for rust and corrosion resistance. And premium material and professional workmanship make the products sturdier and safer. Each D-ring has a 6000 lb break strength. Protect Goods in Transit – These D-Ring anchors are ideal to add tie down points for a truck trailer SUV boat to carry heavy loads which protects cargo from falling or breaking due to jolts and collisions as well as reducing noise and shaking. It solves worries and improves safety of transportation. Wide Range for Application – The D-ring is not only necessary in transportation but also in daily life. It has good load bearing capacity that can be used to trailer cars or motorcycles that break down to tie cartons on warehouse pallets and to anchor boats and marinas at the dock. Installed in a Few Minutes – These D-rings require routing or cutting a hole in the floor by hole saw and chisel. It can be completed in a few minutes which is simple and convenient.When in use the ring portion raises for application and lies down when not in use.