Nkiy Quen 52 Pcs 3/4 Inch Suspension Pipe Clamps-Butterfly Style Pex Tubing Clamps-Black Pex Tubing Pipe Support for Pex, Copper, Cpvc Pipe

What I liked about these butterfly clamps

I picked up the Nkiy Quen 3/4-inch butterfly clamps for a mix of basement plumbing cleanup and a small PEX add-on. They’re the simple, snap-over style hangers made of black polypropylene with two mounting ears. After a couple of evenings installing them on joists and wall studs, I came away impressed with how quickly they go in and how firmly they hold common CTS tubing (PEX, copper, and CPVC).

The headline is speed. Being able to open the clamp by hand, snap it over an existing run, and immediately secure it with a screw makes overhead work smoother. On long runs, I could stage a line of clamps loosely, set my pipe into all of them, then go back and close and cinch them. It’s a small thing that adds up when you’re working ladder-high with a driver in your hand.

The second win is material choice. Polypropylene doesn’t rust, doesn’t squeal on copper, and has just enough give to accommodate slight diameter tolerances while still gripping the pipe. In my cool, damp basement (hovering around 50°F), the clamps remained flexible enough to open without stress whitening or cracking, and once closed they held PEX tightly enough to keep the line from drumming against the joist under quick valve closures.

Fit and compatibility

These are sized for 3/4-inch copper tube size (CTS) pipe—so 3/4 PEX, 3/4 copper, and 3/4 CPVC with CTS OD all seat correctly. The grip on 3/4 PEX (roughly 0.875-inch OD) is notably snug; it takes a decisive press to lock the jaws. That snugness is great for control and vibration damping, but it does mean repositioning after closing takes a bit of deliberate prying with a flat screwdriver. On copper, the fit is similarly firm without scuffing.

Two small caveats on fit:
- If you plan to wrap the line with thick insulation, there isn’t extra stand-off built into the ears. You can shim the ears with a block to gain spacing, but if you need generous stand-off by design, a different bracket style with taller risers may be a better choice.
- The ears are horizontal, not offset. That keeps the clamp compact and low-profile, but it limits the built-in clearance between pipe and mounting surface.

Installation experience

Installation is about as straightforward as it gets. The clamp snaps over the pipe, leaving both hands free to place fasteners. The ears accept common wood or construction screws; I used #8 x 1-1/4-inch pan-head screws into joists and studs. Pre-drilling helps in hardwoods and old, dry framing. They’ll also take nails, but screws make later adjustments easier. No fasteners are included, which is par for the course with this style.

A few tips that helped:
- Plan spacing. For PEX, I aim for 24–32 inches between supports on horizontal runs, closer near valves and changes in direction. Always check local code and the pipe manufacturer’s recommendations.
- Stage clamps first. Lightly set the screws so the ears can pivot, drop in the line, then snap and tighten.
- Use a pilot hole near edges. The ear wings are strong, but pilot holes reduce the chance of splitting thin furring strips or old studs.

I also tried them for a non-plumbing task—corralling a short length of NM-B on a shop wall. The clamp held the cable neatly, but for permanent electrical work, use supports listed for cable per your electrical code. I keep these for plumbing and general shop organization, not for inspected electrical runs.

Holding power and noise

Once closed, these clamps don’t let the pipe wander. With 3/4 PEX suspended beneath joists, I didn’t see sag between supports at typical spacings, and the lines stayed aligned around obstacles. Polypropylene won’t cushion like a rubber-lined metal clamp, but it does reduce rattling compared with hard metal-on-metal contact. If you’re chasing a water-hammer problem, these clamps help by controlling movement, though the root cause is still valve closure speed and system design. Pairing them with proper pressure control and arrestors is the right long-term fix.

Durability and environment

Polypropylene is inherently corrosion resistant, which makes these a smart pick for damp basements, crawl spaces, and mechanical rooms where steel hangers can oxidize. They shrugged off cold-shop temperatures during my install without getting brittle. I wouldn’t put them in prolonged direct sunlight; most generic PP isn’t UV-rated. For outdoor or exposed-sun applications, look for UV-stabilized hangers.

Repeated opening and closing isn’t the intended use case for snap clamps, but I tested a handful through multiple cycles. They still closed positively without cracking, though the latch takes a firmer press after a few cycles. For routine installs, you’ll likely close each clamp once.

Capacity and quantity

The 52-piece bag is a sensible quantity for a small remodel or a few branch runs. On a 40–50-foot run at 24–32-inch spacing, you’ll use around 16–24 clamps, plus extras at elbows and fixtures. I finished two short runs and still had plenty left for tidying older copper lines along the foundation wall.

Where these shine—and where they don’t

They shine for:
- Fast, overhead installs on PEX, copper, or CPVC
- Damp environments where corrosion matters
- Avoiding joist drilling on retrofit runs
- Tight routing with a low-profile attachment

They’re less ideal for:
- Lines needing heavy insulation clearance
- Outdoor installs with UV exposure
- Situations where you want an adjustable, screw-tightened clamp or rubber isolation

If you need greater stand-off, consider a bracket with vertical risers or a steel band-style hanger with isolation lining. If you want more acoustical damping, look for cushioned clamps.

Small design notes

• The ear geometry makes it easy to keep the pipe from sliding while you set fasteners, which is especially welcome over your head.
• The matte black finish blends neatly on dark joists; purely aesthetic, but it makes a cleaner-looking install than shiny metal in some spaces.
• The latch profile is generous enough to pop open by thumb pressure alone, without tools, while still closing with a definite “snap.” That tactile confirmation is handy when you’re moving fast.

Value

For a bulk bag, the per-clamp cost is low, and there’s no compromise on function. You’re paying for a simple, purpose-built shape rather than a universal hanger, and in this case simpler is better. I didn’t miss included fasteners, as I prefer selecting screws that match the substrate. If you do a lot of mixed-diameter work, buying separate bags for each common size is still likely cheaper and faster than using oversized universal straps.

Practical advice for best results

• Keep a square and a chalk line handy to align parallel runs; straight lines make all the difference visually and for future service.
• Add a clamp within a foot of any quick-acting valve or appliance connection to reduce pipe whip.
• On masonry, mount a treated 1x ledger first, then attach clamps to it with wood screws. It’s tidier than a forest of anchors and easier to rework later.
• If you must space off the surface for insulation, use wood spacers behind the ears or choose a stand-off clamp.

Recommendation

I recommend the Nkiy Quen 3/4-inch butterfly clamps for anyone running CTS-sized plumbing—especially PEX—in basements, utility spaces, and crawl areas. They install quickly, hold securely, and won’t corrode. The snap-over design is ideal for retrofits, letting you add supports without disassembling the line. The main limitations are minimal stand-off and a lack of UV rating, which rule them out for thick-insulated or sun-exposed installs. For most indoor residential and light commercial support tasks, though, they’re a reliable, cost-effective choice that make clean, code-conscious pipe runs faster to execute.