Molly Anchor
Fix Walls Firmly, No Loose Shakes
Reusable Molly Bolts for All Walls
Factory Built Anchors for Solid Grip
You drill into the drywall, cram a plastic plug in there, turn the screw and… nothing holds. The weight of a shelf or a mirror pulls the whole thing out of the wall. Drywall, also known as gypsum board, plasterboard or sheetrock, has no grip on a standard screw by itself which is why this is. Make sure the fastener latches behind the wall and not into it. That is where a molly anchor (also known as a molly bolt, hollow-wall anchor, wall grip anchor or expansion sleeve) is employed. “Molly” was once a trademark name but today it’s the generic name for this type of metal sleeve anchor which expands as you tighten the screw to form a wide clamping base on the backside of the drywall.
We are Sinsun, a 20 year old factory based in Tianjin, manufacturing fasteners for professionals in Europe, Canada, Australia and more. We don't purchase from middlemen and stick a logo on it. We produce our own molly bolts in carbon steel, 304 stainless steel with zinc plating or yellow zinc finishing. On each batch, real world testing is done: sharp barbs on the flange to prevent the anchor from spinning, a machine screw that drives in easily, and an expansion sleeve that does not crack during installation. The end product is a Molly anchor you can trust for years to come. What sets us apart? There are no retail layers, no inflated prices, just honest fasteners that work. And if you need a concrete molly anchor for masonry, or a plastic molly bolt for light duty, we have those too. One stop for all molly bolts you need.
Where to Use Sinsun Molly Anchor Key Applications
1. Wall‑Mounted Cabinets
Kitchen cabinets are heavy. Dishes, canned goods, pots and pans. Standard drywall screws pull out in weeks. Alternatively, try our metal molly anchors. More than 50 pounds of holding power is on each anchor. Put four of them in one cabinet and that cabinet won't budge for years of daily use. The best bit? Our molly bolts have sharp barbs that dig into the drywall surface so the anchor won’t spin as you tighten the screw. There was no cracked plaster, no wobbly shelves.
2. TV Mounts – No Stud? No Problem
Hanging a flat screen TV is stressful enough without searching for wall studs. A 55-inch television weighs between 40 and 50 pounds. Two or three Sinsun molly anchors will easily handle that load, spreading the force across a wide area behind the drywall. And because the screw can be removed without damaging the anchor, you can take down the TV for repairs. You can also put it back up in the same place later. That’s not a feature plastic anchors can provide.
Get a Quick Qoute
3.Heavy Shelves for Books & Storage
You begin with a couple of books, then a few more, then perhaps one or two plants. The anchor slowly weakens, the shelf tips, and you fill holes. Sinsun’s metal molly bolts expand fully, gripping the back of the drywall like a vise as you tighten the screw. For deeper shelves or garage storage, select our larger M6 size. They provide that kind of grip that allows you to load up without worrying about midnight crashes.
Get a Quick Qoute4. Mirrors & Large Picture Frames
Big mirrors are difficult. They're heavy, fragile, and are often hung on walls without studs. The weight is borne by a single molly anchor, and the expandable sleeves provide a secure base to prevent the screw from pulling out over time. We see professionals using our molly bolts for hotel lobby mirrors and gallery installations.” For home use, three or four anchors will be enough for any mirror you can lift.
Get a Quick Qoute
5.Radiators & Towel Warmers (UK & Europe)
Central heating radiators and towel warmers are surprisingly heavy, with some units weighing 50-70 pounds. Plus they wiggle a bit when they get hot and cool, which loosen cheap plastic anchors. This is where a molly bolt anchor comes in handy, the metal sleeve is locked behind the drywall. "Sinsun molly bolts are used by many contractors in the UK and Germany specifically for this application.
Get a Quick Qoute6. Bathroom Fixtures
Bathrooms are wet, plastic anchors break. The zinc-plated metal molly bolts used by Sinsun won't rust, and they'll hold the towel bars securely even if guests tug on them repeatedly.The installation is straightforward: Drill the hole, insert anchor, tighten screws, done. No cracked tiles, no spinning anchors, no unhappy calls.
Get a Quick Qoute
Installation Guide – Do It Right the First Time
Installing a molly anchor is straightforward, but a few details matter:
STEP 01
Drill The Pilot Hole.
Use the correct bit size (check our spec table). The hole should be just large enough for the sleeve to pass through snugly. Too tight, and the sleeve jams. Too wide, and the anchor loses grip.
STEP 02
Identify your surface.
Push the molly anchor into the hole until the flange is flush with the wall surface. The sharp barbs on our anchors bite into the drywall and prevent spinning.
STEP 03
Tighten the screw.
Turn the machine screw clockwise. You will feel resistance as the sleeve begins to expand behind the wall. Keep turning until the screw is snug. Do not overtighten — you just need the anchor to grip firmly.
STEP 04
Back the screw out slightly.
This optional step loosens the screw just enough to mount your bracket or fixture without losing the anchor’s expansion.
STEP 05
Mount your item and tighten .
Place your shelf bracket, TV mount, or cabinet over the exposed screw threads, then tighten the screw fully.
STEP 06
Test before loading.
Give the mounted item a gentle tug. If it feels solid, you are done. If it moves, check that the anchor expanded properly and the screw is tight.
What is the wall made of?
Drywall → regular hollow-wall molly. Concrete, brick or block → concrete molly anchor Plasterboard over hollow cavity → advisable to use a metal metal anchor?
How much does it weigh?
- Under 25 lbs: plastic molly bolt OK. 25-75 lbs → metal steel anchor >75 lbs → Use multiple anchors or step up to toggle bolts.
move or reposition the item?
If it is, use a metal metal anchor. The screw can be removed and reinstalled without any damage to the anchor – something plastic anchors can’t do.
If you are still unsure, send us a quick message. Our team matches your job to the right molly bolt in minutes. No guesswork, no wasted money on the wrong fastener.
Frequently Asked Questions (FAQ)
What is a molly bolt anchor?
A molly bolt anchor (also called a hollow‑wall anchor) is a metal sleeve with a machine screw inside. When you tighten the screw, the sleeve expands behind the drywall, creating a wide clamping base that holds heavy items securely.
Are molly bolts reusable after installation?
A standard 1/8″ molly anchor in 1/2″ drywall will hold about 50 pounds (22 kg). Larger sizes (1/4″) can hold 75‑90 lbs. Capacity for concrete molly anchors in masonry is based on the base material - ask us for spec sheets.
Can I use a molly bolt in concrete?
A standard hollow-wall molly anchor requires a hollow cavity behind the wall — it won’t work in solid concrete. But we do have concrete molly anchors (machine screw anchors) that expand into concrete, brick and hollow block. Those are great for masonry applications.
Can a molly anchor be removed and reused?
Yes — that is one of the biggest advantages over plastic anchors. The metal sleeve stays in the wall. You can unscrew the machine screw, remove the mounted item, and later screw it back into the same anchor. The anchor itself remains intact.
What is the difference between a single and a double nail clip?
Plastic molly bolts are light‑duty (15‑25 lbs), corrosion‑free, and cheaper. Metal molly anchors are medium‑heavy duty (50‑75+ lbs), reusable, and much stronger. For anything over 25 pounds, choose metal.
Do I need to pre‑drill a hole for a molly anchor?
Yes — molly anchors require a pilot hole drilled to the correct diameter (usually 5/16″ to 1/2″). Do not hammer them in. Drill the hole, insert the sleeve flush with the wall, then tighten the screw.
What is the strongest molly anchor for drywall?
A 1/4″ steel molly anchor with zinc plating offers the highest holding capacity in our range (75‑90 lbs). For even heavier loads, consider toggle bolts or multiple molly anchors spaced properly.
Do Sinsun molly bolts come with screws included?
Yes. Every molly anchor kit includes the matching machine screw in the correct length and thread size. For bulk factory orders, we can customise screw length and head type to fit your specific fixture.
Why Choose Sinsun Factory Molly Anchors
You have seen the types, the specs, and the real feedback. Now it is time to put Sinsun molly anchors to work on your next project. Whether you need 50 pieces for a weekend DIY job or 10,000 pieces for a commercial supply chain, we ship factory‑direct to keep your costs low and your quality high. Fill out the form below, and we will send you a quote within 24 hours. No middlemen. No retail markups. Just reliable molly bolts that hold./p>
Send Inquiry Now Product name / SKU (if known) Quantity needed Target weight per anchor (lbs or kg) Wall type (drywall / concrete / brick / other) Your email address
Keep In Touch
TO KNOW MORE ABOUT Sinsun, PLEASE CONTACT US！
We are committed to providing you with the best quality service and look forward to communicating with you to solve problems together and bring you a better experience.
our experts will solve them in no time.