6 Types of Drywall Anchors: Which One Holds What Weight (2026)

Drywall is gypsum — a soft, chalky mineral — pressed between two sheets of paper. It has almost no shear strength, which is why a screw driven straight into it holds for a day and then rips out taking a fist-sized chunk of wall with it. An anchor doesn’t make drywall stronger; it spreads the load over enough surface area that the gypsum can actually bear it. Which anchor you need comes down to two numbers: how much weight, and how thick your wall is.

Drywall Anchor Types at a Glance

Type	Best For	Typical Load	Removable?
Plastic expansion	Pictures, small decor	Up to 25 lbs	Yes, easily
Self-drilling threaded	Curtain rods, light shelves	25–75 lbs	Yes
Molly bolt	Mirrors, towel bars	50–100 lbs	Sleeve stays in wall
Standard toggle bolt	Shelving, light fixtures	50–100 lbs	No — wings drop inside wall
Heavy-duty strap toggle	TV mounts, cabinets, grab bars	100+ lbs	Yes, fully reusable

Comparing two specific types head-to-head? See Molly Bolt vs. Toggle Bolt. Working with brick, block, or concrete instead of drywall? See Masonry Anchors Explained.

Plastic Expansion Anchor

The cheapest, most common anchor in any hardware store. A ribbed plastic body goes into a pre-drilled pilot hole, and driving the screw in spreads the ribs against the sides of the hole. Fast, cheap, and fine for genuinely light loads — but the plastic itself is the weak point, and it will not hold anything you’d be upset to see fall.

Self-Drilling Threaded Anchor

A sharp-tipped anchor with aggressive external threads that cuts its own hole — no drill required, just a screwdriver. Available in nylon (lighter duty, forgiving if over-driven) or zinc alloy (stronger, better for anything with real weight). This is the anchor to reach for when you want more than a plastic expansion anchor but don’t want to deal with a toggle.

Molly Bolt

A metal sleeve anchor that goes into a pre-drilled hole and flares open behind the drywall as the screw is tightened, gripping the back side of the panel. Stronger than plastic or self-drilling anchors and a good middle-weight option — but the sleeve is permanent once set, and the screw is the only removable part.

Standard Toggle Bolt

A machine-threaded bolt with spring-loaded wings that fold flat to pass through a drilled hole, then spring open behind the wall to brace against the back side — similar principle to a molly bolt but with far more surface area gripping the drywall. The catch: if you ever remove the screw, the wings fall inside the wall cavity and you start over with a new hole.

Heavy-Duty Strap Toggle (SnapToggle)

The strongest hollow-wall anchor made, and the one every serious source converges on recommending for TV mounts, grab bars, and cabinets. Instead of spring wings, a rigid plastic toggle rides behind the wall on a break-away strap — once set, you can remove and reinstall the screw as many times as you want without losing the toggle inside the wall. Rated well past 100 lbs depending on channel size, and works on wall thicknesses up to roughly 3-3/8″.

When an Anchor Isn’t Enough

No drywall anchor changes the fact that you’re fastening into a sheet of compressed chalk. For anything heavy, valuable, or safety-related — wall-mounted TVs, bathroom grab bars, tall furniture, wall-hung cabinets — find the stud. A stud finder and a few minutes of patience beats any anchor rating on the package. If a stud genuinely isn’t available where you need it, that’s exactly when a heavy-duty strap toggle earns its higher price — not as a substitute for good judgment, but as the real fallback when there’s no wood to hit.

Common Installation Mistakes

Drilling the pilot hole too small. Forcing an anchor into an undersized hole cracks the surrounding gypsum before the anchor ever does its job. Match the bit to the anchor package, not a guess.

Stripping the screw before the anchor is seated. Threaded anchors need slow, steady driving — going too fast heats and strips the plastic threads, especially in nylon anchors.

Using a standard toggle bolt where a stud was actually reachable. If you’re drilling a 1/2″ hole for a toggle two inches from a stud bay, move the mounting point and use the stud instead.

Ignoring the wall thickness rating. Strap toggles and heavy-duty molly bolts have a maximum wall thickness they’ll set properly in — check it before buying, especially on older lath-and-plaster walls that run thicker than modern drywall.

Frequently Asked Questions

Can I reuse a drywall anchor hole?

Plastic expansion and self-drilling anchors can often be reused if the hole isn’t damaged. Molly bolts and standard toggle bolts generally can’t — the sleeve or wings stay behind the wall. A strap toggle is the only type designed for repeated removal and reinstallation of the screw.

How do I know what weight a drywall anchor can hold?

Check the manufacturer’s rated capacity printed on the packaging — it varies by anchor size, not just type. As a rule of thumb: plastic expansion tops out around 25 lbs, self-drilling and molly bolts run 25-100 lbs depending on size, and heavy-duty strap toggles exceed 100 lbs.

Do toggle bolts work in ceilings?

Yes, but be conservative — gravity works against you on a ceiling mount, so rate the anchor well below its wall-mount capacity, or better, hit a ceiling joist directly whenever possible.

What size hole do I drill for a toggle bolt?

Large enough for the folded wings to pass through — typically listed on the packaging, commonly around 1/2″ to 7/8″ depending on the toggle size. Drilling too small will crack the wings trying to force them through.

Is a molly bolt or a toggle bolt stronger?

A toggle bolt generally holds more weight because its wings spread load over more surface area behind the wall than a molly bolt’s flared sleeve. For a full comparison, see Molly Bolt vs. Toggle Bolt.

Related Guides

Molly Bolt vs. Toggle Bolt: Which One Do You Need? · Masonry Anchors Explained · 6 Types of Concrete Anchors Compared · Drywall Screw Size Chart · How to Hang Heavy Things on a Concrete Wall