PAMAZY 6PCS Heavy Duty Steel D Rings Tie Down Anchors, Ultra Durable 3500 Pound Breaking Strength Surface Mount Hooks Securing Cargo for Trailer, Truck Bed, with Screws & Bolts

A small hardware upgrade that changes how you secure cargo

I’m picky about tie-down points. Too many anchors advertise big numbers but wobble under load, rust in a season, or rely on flimsy hardware that becomes the weak link. After outfitting a utility trailer and the bed of a crew-cab pickup with the PAMAZY D‑ring anchors, I’ve come away impressed with the steel and the design—and clear on what I’d change on day one.

Build quality and design

Each anchor is a surface‑mount D‑ring on a wide, four‑hole base. The plate is thick enough that it doesn’t deform when torqued down, and the ring pivots freely without binding. The four‑hole pattern spreads load nicely compared to two‑hole brackets, which helps prevent rocking and loosening under vibration. The finish is an electrophoretic black coating that, in my use, resisted chips and corrosion better than the typical painted hardware-store options. I installed these in late winter; after months of rain and a couple of salted-road trips, I’m not seeing rust creep at edges or under the ring.

PAMAZY lists a 3500‑lb breaking strength. As with any anchor, real‑world capacity depends on the substrate and fasteners, not just the ring. I treat the 3500 lb as an ultimate number and plan around conservative working loads while using multiple points for redundancy. The hardware itself is up to the task; your installation determines the rest.

What’s in the box

The six‑pack includes plenty of hardware: bolts and wood screws for various surfaces. It’s a nice gesture and useful for test fits, but I wouldn’t rely on the included wood screws for anything beyond light duty. The bolts, used with nuts and washers, fare better, but length can be limiting through thicker decking. More on that in installation.

Installation: straightforward, with a couple of smart upgrades

Layout is simple: I dry‑fit straps to identify realistic strap paths, then place anchors where hooks won’t interfere with cargo or fenders. On the trailer’s 2x plank deck, I drilled pilot holes and countersunk slightly to prevent splintering. In the truck bed, I used existing drain holes as guides where possible and verified clearance below to avoid fuel lines and wiring.

My recommendations after doing a dozen of these:

• Through‑bolt whenever you can. A proper bolt with washers and a lock nut transforms these from “good” to “bombproof.” Under a wood deck, I like wide fender washers or a backer plate to distribute load. Under sheet metal, use a reinforcement plate inside the bed when feasible.
• If you must use screws in wood, upgrade them. Use high‑quality, appropriately sized lag screws and pre‑drill pilot and shank holes to reduce splitting and shear risk. Cheap screws are the weak link in any anchor system.
• Add a dab of sealant in holes on exposed decks and truck beds to prevent water intrusion and rust.
• Torque evenly across the four holes. Uneven tightening can preload the plate and introduce wobble.

With proper fasteners, the anchors sit flat and solid. The base footprint is compact enough to tuck along rails and crossmembers, but be aware that surface mounts sit proud of the deck. Plan around rolling cargo and foot traffic.

Real‑world use

I’ve used these to secure an ATV, stacks of dimensional lumber, appliances, and a pair of toolbox chests. The ring clears standard S‑hooks, flat hooks, and carabiners, and it accepts bulky ratchet‑strap ends without fuss. Under dynamic loads—sudden braking and washboard gravel—the plates stayed put, and the ring articulation helped straps maintain tension without twisting.

Two things stood out:

• No wobble. The four‑hole footprint and thicker plate minimize the rocking you see with two‑hole brackets. That translates to less fastener loosening over time.
• Manageable noise. The ring can clank against the plate when unladen, but with a strap in place there’s minimal rattle. If you’re sensitive to noise, a bit of rubber underlay or a strip of bed mat between the plate and deck helps.

On the truck, I positioned a pair near the tailgate for quick grocery and tool bag tie‑offs and four inside the wheel arches for heavier hauls. On the trailer, I spread all six across the perimeter so I can triangulate loads without crossing straps over fragile surfaces.

Durability and corrosion resistance

The black coating has held up well. Dragging chain hooks over the rings will scuff any finish; here, wear spots stayed superficial and did not bloom into rust in wet weather. The hinge pin remains tight with free movement. After a few months outdoors, I don’t see flaking or bubbling at edges—a common failure mode with cheaper painted anchors.

As always, inspect periodically. I re‑torqued the fasteners after the first two trips and again after a month—no movement on the through‑bolted locations. Light oil on the ring pivot keeps things squeak‑free.

Where they shine—and where they don’t

Strength, coating quality, and the four‑hole design are the highlights. The anchors are also versatile: beyond vehicles and trailers, I mounted a couple in the garage as quick‑grab points for organizing hoses and for light resistance band work. For that indoor use, the included screws are fine.

The main downside is the included wood screws. They’re serviceable for light duty but too brittle for serious loads; under vibration and shock, inexpensive screws can shear. The included bolts are better, but if your deck is thicker than their length, plan to source your own hardware. I’d also love to see an option with backing plates in the kit—most people underestimate how much a large washer or plate improves load distribution.

Finally, surface‑mount anchors aren’t a substitute for recessed D‑rings if you need a completely flush deck. If you regularly slide pallets or heavy boxes across the floor, plan anchor locations accordingly to avoid snags.

Safety notes

• Treat the published number as a system capacity only when your substrate and fasteners match. A steel plate with through‑bolts is different from an old plank deck with wood screws.
• Use multiple tie‑down points and proper strap angles. A single anchor at an extreme angle bears far more load than you think.
• Replace any fastener that shows corrosion or elongation, and retire an anchor if the ring gaps or the plate warps.

Value

As a six‑pack, these land at a friendly price per point, especially given the coating quality and solid ring/plate build. I consider the included hardware a convenience, not a reason to buy; the anchors themselves are the value. Budget for better fasteners and, if necessary, backing plates—you’ll still be ahead compared to piecing together less robust anchors one‑by‑one.

Bottom line

The PAMAZY D‑ring anchors are stout, well‑finished, and thoughtfully designed. Install them with proper through‑bolts or quality lag hardware, and they behave like premium anchors without the premium price. They’ve earned a permanent spot on my trailer and truck bed, and I’ve added a couple to the shop for everyday tie‑off tasks.

Recommendation: I recommend these anchors for anyone outfitting a trailer, truck bed, or utility van who wants reliable tie‑down points without cutting into the deck. They’re durable, resist corrosion, and the four‑hole base keeps them planted. Just plan to upgrade the fasteners for critical loads and use backing hardware where possible. Set up that way, they’re a dependable, cost‑effective solution that I trust with real cargo.