Blulu 36 Pcs 3 Inch Vinyl Shutter Fastener Window Panel Peg Lok Pin Pegs Screws Shutter Spikes Anchor

A good shutter fastener is one you stop thinking about after the install. That’s exactly how my experience went with the Blulu shutter pegs—simple to use, tight once seated, and unobtrusive in appearance.

What they are

These are 3-inch, black, UV-stabilized vinyl spikes with a broad, domed head and a reverse-barb shaft. They’re designed to secure decorative vinyl shutters to a variety of substrates—siding, stucco, masonry, and brick—without the risk of rust or staining you get with metal hardware. The pack includes 36 pegs, which is a sensible quantity for refreshing several windows at once.

Blulu suggests 8 pegs per pair of shutters under 55 inches and 12 per pair over 55 inches. In practical terms, a single box covered four average-size windows for me, with a few extras for mistakes and future maintenance.

Installation experience

The short version: they go in cleanly if you prep correctly. The reverse-barb design grips well and resists backing out, but that also means you want to get your alignment right on the first go.

Here’s the workflow that gave me the most predictable results:
- Remove old fasteners. If you’re replacing existing pegs, plan to cut the heads off and push the remnants through rather than trying to extract them. Vinyl spikes don’t like to be pulled back out.
- Mark and number shutters before removing. This saves you from chasing misaligned holes later.
- Dry fit and align with an awl or a thin screwdriver. While holding each shutter in place, I used an awl through the shutter holes into the substrate to check alignment and “feel” the angle of the existing holes. That eliminated guesswork when driving the new pegs.
- Drill snug holes. The key is a hole just undersized enough to let the barbs bite. Start smaller, test fit one peg, and step up a bit if needed. The goal is firm resistance, not a fight.
- Drive with a rubber mallet (or a hammer with a wood block). A mallet protects the head from scuffs and keeps the impact more controlled. Once the barbs start, the peg tracks straight and seats with a satisfying final tap.

On vinyl siding over sheathing, the pegs advanced smoothly and locked in place without wobble. Over brick and stucco, I pre-drilled into mortar or patched areas and had no issues, but the hole sizing mattered more—too tight and you risk crushing the head as you overwork the peg, too loose and you lose that secure bite.

Notably, the shafts feel stiffer than many bargain pegs. That rigidity helped a lot when the angle wasn’t absolutely perfect; there was no gummy flex or banana-bending mid-drive. It’s still worth taking a minute to align carefully so you don’t end up cutting a misdriven peg out and starting fresh.

Fit and finish

The low-profile head sits neatly in the shutter’s countersunk recess, and the black color blended well with both black and dark gray shutters I installed. Because the color is in the material, there’s no paint to chip. After installation, the heads read as purpose-made rather than retrofit hardware, which is what you want on decorative shutters—nothing flashy, nothing fussy.

If you need a different color, you can paint these pegs before installation with a vinyl-safe exterior paint, but be aware that any paint on the head will be more susceptible to scuffing during installation; pre-paint and use a soft mallet face.

Holding power and day-to-day performance

Once seated, these pegs are tight. Decorative shutters aren’t structural, but they do act like little wings in gusts. After a blustery week, I had no rattles or lift, even on a west-facing wall that gets the afternoon wind. The large head distributes pressure well, and the barbs keep the peg from walking back out.

A caveat: these are not designed for operational storm shutters. If you need removable or load-rated fasteners for code-compliant systems, you want mechanical hardware (stainless screws with proper anchors). For decorative vinyl shutters, these pegs are a better aesthetic fit, and they eliminate the rust streaks you sometimes get from metal fasteners.

Durability and weathering

The UV-stabilized vinyl matters. Inferior pegs chalk, fade, and get brittle after a few seasons in full sun. These have a dense, slightly satin finish that hasn’t chalked on me. Vinyl also sidesteps galvanic corrosion and the freeze–thaw expansion issues you can encounter with metal anchors in masonry.

Temperature swings didn’t cause any audible creaks or seasonal loosening. The vinyl has enough give to tolerate minor movement in siding and trim without losing its bite.

Where they shine

• Vinyl shutters on vinyl or aluminum siding where you want a clean, no-rust look
• Replacements for broken pegs where existing holes can be reused
• Projects that benefit from bulk quantity—one box goes a long way
• Environments with salty air or frequent rain that tend to punish metal hardware

Where they don’t

• Installations requiring routine removal (for repainting or cleaning): these are effectively one-way fasteners. Plan to cut and replace if you take shutters down again.
• Very deep stand-offs: at 3 inches, you need to account for shutter thickness, any spacing washers, siding profile, and substrate depth. If you’re mounting over thick foam or need to bridge a larger cavity, measure carefully—these may be too short.
• Color-sensitive projects where black heads will stand out. You can paint them, but if you need a factory color match in, say, white or tan, you’ll want to source the right color up front.

Tips for best results

• Use the right hole size. Start small; you can always widen. A snug hole makes the barbs do their job without mushrooming the head.
• Keep a few spares handy. Despite best efforts, you may sacrifice one or two during alignment.
• Protect the head while driving. A rubber mallet or a hammer with a soft block keeps the finish clean.
• Plan your count. Under 55-inch shutters: four pegs per shutter is usually sufficient (top corners and bottom corners). Over 55 inches: six per shutter distributes load better.
• Safety first. If you’re cutting old heads off, eye protection is non-negotiable—vinyl can snap.

Value

The 36-count box strikes a smart balance for homeowners and pros tackling multiple windows. Compared with buying smaller packs, the per-peg cost is attractive, and the quality is noticeably better than the flimsy spikes that buckle at the first sign of resistance. Between the UV-stable material and the corrosion-proof nature of vinyl, there’s also a long-term value story: fewer callbacks and fewer cosmetic issues.

Alternatives to consider

• Stainless screws with color-matched caps: removable and strong, but more visible and potential for rust staining if inferior steel is used.
• Longer vinyl spikes: if your wall build-up requires more reach, look for 3.5–4-inch options from the same or compatible manufacturers.
• Mechanical anchors for masonry: for functional shutters or heavy loads, step up to proper anchors and screws.

Bottom line

The Blulu shutter pegs do the simple job of holding decorative shutters in place, and they do it well. They install quickly, sit flush and discreet, and shrug off weather without the maintenance headaches of metal fasteners. The stiffer shaft makes alignment less finicky than bargain alternatives, and once they’re in, they stay put.

Recommendation: I recommend these for anyone installing or refreshing vinyl shutters who wants a clean, durable, and corrosion-proof fastener. They’re especially well-suited to siding and light masonry applications where appearance matters as much as function. If you expect to remove shutters regularly or need longer reach than 3 inches, consider a different fastening approach. Otherwise, this 36-pack is a reliable, cost-effective way to get your shutters tight, quiet, and looking tidy.