Landhoow 50 Pcs Emt Pipe Universal Strut Clamps Strut Channel Accessory Electro Galvanized Conduit Clamp with Bolt and Nut, Rigid Pipe Tool

What I used and why

I picked up a 50-pack of Landhoow strut clamps in the 1-1/2 inch size for a couple of small commercial retrofits and a backyard solar ground-mount build. I needed a budget-friendly way to secure EMT to standard 1-5/8 inch strut and didn’t want to burn through pricier spec-grade clamps for non-critical runs. The value proposition is obvious: a big box of hardware that can cover a lot of conduit quickly. I was curious whether the savings would come at the expense of fit, finish, or reliability.

Build and coating

These clamps are electro-galvanized steel, which is the right call for indoor use and most dry outdoor environments. The coating is uniform on the batch I received, with no flaking or bare edges. Electro-galvanizing isn’t in the same corrosion-resistance league as hot-dip galvanizing, so if you’re working on coastal installs, chemical plants, or constantly wet locations, I’d step up to hot-dip or stainless. For utility rooms, garages, basements, data closets, or a ground-mounted solar frame away from salt spray, these are appropriate.

Material thickness is on the lighter side compared to premium clamps. The hook that engages the strut lip will flex if you get aggressive with prying or over-torque the bolt with a big driver. That’s not a deal-breaker—it just means you should install them with a little care. Edges were decently deburred; I didn’t encounter burrs that would nick cable jackets or hands, but the finish isn’t what I’d call “polished.”

Hardware and compatibility

Each clamp came with a bolt and a matching nut. The hardware in my set uses metric threads, which matters if you’re mixing these with 1/4-20 components or expecting to reuse bolts from your bin. Plan to keep your metric nut driver handy. The included nut functions fine as a simple channel nut, but it’s not a spring nut. If you’re used to spring nuts that hold themselves in place, expect installation to be a touch slower—you’ll be holding the nut in the strut while starting the bolt.

I mounted these in standard 1-5/8 inch strut without issue. They also fit shallow (13/16 inch) strut, though you’ll have less bite surface for the hook; be gentle when seating them in shallow channel. The 1-1/2 inch size clamps 1-1/2 inch EMT securely with a little room to spare for alignment. EMT in this size has a larger outside diameter than its nominal size suggests, and these clamps are correctly sized for that reality. With rigid conduit (RMC), which runs larger OD than EMT, the fit is very snug and tolerances are tighter—still workable, but you’ll want to check before committing to a full run if you’re on rigid.

Installation experience

The simple, classic design makes for straightforward installs:
- Hook one side of the clamp into the strut channel.
- Place the conduit.
- Swing the clamp over and start the bolt into the nut by hand.
- Square the nut in the channel and snug the bolt.

On overhead runs, pre-staging the nuts in the strut helps speed things up. Because the nuts aren’t spring-loaded, I found it easiest to pinch the nut in place with one hand while starting threads with the other. Once the bolt catches a few turns, the nut sits flat and the rest is routine.

Torque-wise, “snug plus a quarter turn” kept things secure without crushing EMT or bowing the clamp. If you overdo it, the lighter-gauge hook will deform and you’ll lose the clean, parallel seating in the channel. I had best results using a hand ratchet instead of an impact driver; a small cordless ratchet on low clutch worked fine too.

Holding power and consistency

Once tightened properly, the clamps held conduit with no rattle or rotational play. I intentionally tested on vertical runs and on a strut-mounted inverter rack for the solar array, where vibration is a bit more noticeable, and the clamps stayed put after a couple weeks of thermal cycling. I didn’t see red rust after exposure to fog and dew; that tracks with expectations for electro-galvanized parts used outdoors but not in harsh atmospheres.

Within the batch, dimensions were consistent enough that I could set a routine and not fiddle with outliers. I had two clamps where the galvanizing was a little heavier around the hook, which made initial seating slightly tighter, but it didn’t affect final fit. The hardware threads were clean; no cross-threading or mis-formed nuts in my box.

Where they shine

• High volume, low drama: If you’re routing a lot of EMT on long strut runs, the 50-pack saves time and money. I didn’t have to ration clamps and could keep a bag on the ladder.
• General-purpose environments: Mechanical rooms, basements, garages, warehouses—indoors or covered outdoor spaces—are ideal use cases for electro-galvanized steel.
• Simple layouts: Straight conduit runs on single strut with occasional offsets and tees are easy to handle with these. They’re perfectly adequate for data tray drops and solar BOS wiring, too.

Where to think twice

• Spec work and inspections that call out brands/listings: If your job requires specific UL listings, hot-dip galvanizing, thicker gauge, or spring nuts, you’ll want a higher spec clamp set from a known line.
• Corrosive or coastal environments: Electro-galvanizing will succumb faster than hot-dip in salty air or chemical exposure. Budget for the right finish if longevity matters.
• Heavy-handed installs: If you rely on an impact and muscle things into place, you’ll bend a hook or two. These prefer a measured touch.

Practical tips

• Bring metric drivers: The included hardware is metric. Keep a metric nut driver and wrench in your pouch to avoid rounding heads.
• Pre-stage nuts: Drop a handful of the included nuts into the strut ahead of time, especially overhead. You’ll move much faster.
• Don’t over-torque: Tighten until the conduit is secure and the clamp ears are parallel. If the hook starts to walk or deform, back off.
• Mix hardware thoughtfully: If you’re mixing these with spring-nut clamps, keep the hardware separate so you don’t cross-thread or chase the wrong bolt into the wrong nut.
• Label sizes: If you stock multiple clamp sizes in the same bin, mark the bags. The 1-1/2 inch clamps look close to 1-1/4 inch at a glance.

Durability check

I left a few clamps on an outdoor rack (not coastal) through rain and a couple of hot-cold cycles. No early signs of corrosion, no coating blisters, and no loosening on the bolts. Long-term, I’d expect the usual white rust progression typical of electro-galvanized hardware if it’s constantly wet, but for normal service they should be fine. The lighter gauge steel did not creep or “settle” under load once properly tightened.

Value

The biggest story here is cost per clamp. For jobs where the spec doesn’t demand premium features and you’re managing a lot of linear footage, the economics make sense. You give up spring nuts, heavier gauge steel, and a premium finish, but you gain quantity and acceptable performance. For DIYers and small shops, that trade-off is easy to justify. For larger contractors, it’s a viable stock item for non-spec runs and temporary work.

Bottom line and recommendation

The Landhoow strut clamps did what I needed: they held 1-1/2 inch EMT to standard strut securely, installed without fuss, and kept my budget in check. The electro-galvanized finish is appropriate for most indoor and general outdoor use; just don’t mistake it for hot-dip in harsh environments. The hardware being metric and the absence of spring nuts slow installation slightly, and the lighter gauge steel rewards a careful hand on the wrench. Those are reasonable compromises for the price and the quantity.

I recommend these clamps for anyone building out conduit runs in non-corrosive environments who values cost and availability over premium features—DIYers, small contractors, and pros tackling non-spec segments of a larger job. If your project lives near the ocean, carries strict specification requirements, or you prefer spring-nut speed and thicker steel, step up to a higher-grade clamp. For everything else, this 50-pack is a practical, budget-friendly workhorse.