Best Expansion Bolts Deals of Nov 2026

Updated November 10, 2026Our site contains affiliate links for which we may be compensated.
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13% Off

mankk 40PCS Expansion Screw and Petal Nut Kit M4 M5 M6 Jack Car Metal Screw Petal Shape Metal Nut Anchor Screw for Hollow Wall Iron Skin Plasterboard

Jack Nut Threaded Insert Petal Nuts is a fastener specially designed for fixing thin plates. Its unique petal-like structure will automatically expand when stressed, thus providing a firm fixing effect, which is widely used in thin plates, hollow pipes and other scenes.
【Reliable Material】The expansion screw & petal nuts are made of high-quality carbon steel, the surface is galvanized, which has the effects of rust prevention and corrosion prevention, especially in wet or acidic environment. The galvanized layer is malleable, and can be processed by cold stamping and bending without damaging the coating, and can be used for a long time indoors and outdoors.
【Easy Installation】The petal-shaped design structure is adopted. When in use, only one pliers (such as elbow pliers) is needed to clamp the bottom of the nut, so that the sleeve part of the nut begins to expand like a petal, and then the screw is tightened, and the nut will further expand and finally be firmly fixed on the thin plate.
【Wide Application】Petal Nuts Set is widely used in automobile license plate fixing, steel structure shell plate connection, plastic chassis assembly and so on. It is especially suitable for fixing objects on thin iron plates, square pipes and other materials.
【Package include】M4*20,M4*25,M5*25,M6*25, 4 sizes,10 in each size, a total of 40pcs.Put it in a transparent storage box for easy carrying and taking.
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80PCS Button Rivet Locking Nuts, Tuercas De Bloqueo Tipo Remache De Botón, M4-20, M4-25, M5-25, M6-25 Rivet Nut Tool Kit for Installation License Plates, Hollow Wall Iron Skin Line, Billboards

【What You Will Get】You will get 80 pieces of M4/M5/M6 jack nuts, and the quantity is enough for you to use and replace in daily life, meeting your various use demands. Petal Shape Metal Nut surface is galvanized and is a very nice silver color, which can resist corrosion and rust in marine environments.
【Fast Installation】The tool makes it easier. You can you 2 wrenched or pliers. One is to hold the rivet nut so it does not spin after you insert it into the hole. Thread the right size screw into the nut. Tighten the nut with the other wrench/plier. As you tighten the screw/bolt, the nut will crimp and hold in place. Don't over-tighten or you may strip the thread.
【Easy to use】Just like using ordinary screws and nuts, thread the screw into the part to be fixed, then install the nut and twist the nut inside the screw. As you rotate, the nut will gradually open and will increase the range of fixing.
【Durable Material】The petal nut is made of high-quality carbon steel, is strong and durable, prevents rust and corrosion, long service life. The expanded head of the nut is larger and can be securely fastened to the plate, it has good load-bearing capacity.
【Multi-purpose】These expanding screw sets are ideal for mounting thin items. The petal nuts can be used with a variety of materials, including plastic, polywood, hollow wall, iron skin, and more, making them a versatile addition to any DIY or construction project.
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Sipery Expansion Bolts, 304 Stainless Steel External Hex Nut Expansion Screw Bolts Sleeve Anchor M6x60mm 8Pcs

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25pcs M4 x 38mm Molly Bolts, Heavy Duty Hollow Wall Anchors for Drywall | Zinc Plated Drywall Expansion Plasterboard Fixings, Cavity Wall Anchor Screws for Plaster Hollow Walls 0.39''-0.63'' thick

Heavy Duty Molly Bolt Design: These M4 x 38mm hollow wall anchors feature strengthened expansion wings and anti-rotation teeth to lock firmly inside drywall, plasterboard and gypsum board. Provides reliable medium load bearing capacity for secure mounting, much stronger than common plastic drywall plugs. Suitable for wall thickness 10-16mm / 0.39–0.63 inch.
Zinc Plated Carbon Steel: Made of premium carbon steel with zinc plated finish for rust, wear and corrosion resistance. Sturdy one-piece structure ensures long service life for indoor and outdoor drywall mounting.
Easy & Fast Installation: Pre-assembled screw and anchor for quick setup. Just drill a proper hole, insert the molly bolt and tighten with a screwdriver. NOT recommended to use high torque electric drill to avoid thread stripping.
Wide Application for Hollow Walls: These drywall molly bolts work perfectly on drywall, gypsum board, plaster, hollow block, partition wall and fiberboard. Ideal for hanging picture frames, coat racks, curtain rods, towel bars, shelves and light switches.
Package Content: You will receive 25 pieces silver M4*38mm drywall expansion molly bolts. Please confirm your wall thickness before purchase to avoid size mismatch. Size(about): 45x38mm/1.77x1.5inch (length x tube length), washer dia: 8mm/0.32inch, suitable thickness: 10-16mm/0.39x0.63inch.
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M METERXITY 5-Pack Hex Expansion Bolt, M6x60mm Colored Galvanized Iron-Carbon Steel External Hex Expansion Bolts, Anti-Corrosion Metal Bolt for Concrete/Dry Brick/Block Walls

[Multipurpose Use] - Concrete brick expansion screw bolts fastener is suitable for fixing to concrete and masonry and a variety of heavy installations, widely used in construction projects to home repairs, such as a fence, canopy, concrete anchoring, building walls, indoor bathroom and kitchenware, air conditioning, ceilings, doors, lighting, advertising billboards, TV wall mountings, outdoor guardrails, etc
[Durable Expansion Bolts] - Our durable air conditioning wall fixing screws are crafted from galvanized iron-carbon steel. These bolts are resistant to rust and corrosion, possess high hardness, are strong and not easily breakable, can securely fix heavy objects, and enjoy a long service life
[Size & Package] - The package comes with a 5-pack of M6x60mm expansion bolts anchor bolt in size M6x60mm. Screw Length: 60 mm / 2.36 in; Casing Size: 49 x 8 mm / 1.93 x 0.31 in (L x OD); Hexagonal Opposite Side: 9.79 mm / 0.39 in; Gasket Size: 6 x 15 x 1 mm / 0.24 x 0.59 x 0.04 in (ID x OD x T); Head Thickness: 4.3 mm / 0.17 in; Screw Diameter: 6 mm / 0.24 in
[Advantage] - The surface of the sleeve anchor fastener wall concrete is smooth and burr-free. The threaded bolts are designed to evenly bear force, provide reliable connections, and firmly fix solid surfaces such as concrete and masonry. Expansion bolts come with nuts and washers for easy installation.
[Installation] - By tightening the bolt to create an expansion, the bolt pulls the conical cone, making the sleeve expand against the hole wall, achieving a firm fixing effect
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M METERXITY 20-Pack Hex Expansion Bolt, M6x40mm Colored Galvanized Iron-Carbon Steel External Hex Expansion Bolts, Anti-Corrosion Metal Bolt for Concrete/Dry Brick/Block Walls

[Multipurpose Use] - Concrete brick expansion screw bolts fastener is suitable for fixing to concrete and masonry and a variety of heavy installations, widely used in construction projects to home repairs, such as a fence, canopy, concrete anchoring, building walls, indoor bathroom and kitchenware, air conditioning, ceilings, doors, lighting, advertising billboards, TV wall mountings, outdoor guardrails, etc
[Durable Expansion Bolts] - Our durable air conditioning wall fixing screws are crafted from galvanized iron-carbon steel. These bolts are resistant to rust and corrosion, possess high hardness, are strong and not easily breakable, can securely fix heavy objects, and enjoy a long service life
[Size & Package] - The package comes with a 20-pack of M6x40mm expansion bolts anchor bolt in size M6x40mm. Screw Length: 40 mm / 1.57 in; Casing Size: 35 x 8 mm / 1.38 x 0.31 in (L x OD); Hexagonal Opposite Side: 9.79 mm / 0.39 in; Gasket Size: 6 x 15 x 1 mm / 0.24 x 0.59 x 0.04 in (ID x OD x T); Head Thickness: 4.3 mm / 0.17 in; Screw Diameter: 6 mm / 0.24 in
[Advantage] - The surface of the sleeve anchor fastener wall concrete is smooth and burr-free. The threaded bolts are designed to evenly bear force, provide reliable connections, and firmly fix solid surfaces such as concrete and masonry. Expansion bolts come with nuts and washers for easy installation.
[Installation] - By tightening the bolt to create an expansion, the bolt pulls the conical cone, making the sleeve expand against the hole wall, achieving a firm fixing effect
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Neprift 20PCS M5 x 25mm Hollow Wall Anchors, Drive Molly Bolts | Hammer-in installation, Metal expansion sleeve, Secure wall grip, for 1/2" drywall and hollow panels

[Versatile Use]: This package includes 20pcs m5 hollow door anchor set (hollow door anchors and screws), perfectly sized as M5 x 25mm with anchor length matching thin wall requirements. Designed specifically for hollow core doors, shallow hollow panels (like caravan/RV walls), and thin walls, our hollow wall anchors for thin walls are also ideal as sheet anchors and hollow metal cavity fixing hollow door anchor, meeting your DIY or professional installation needs
[Durable Construction]: Crafted from high-quality carbon steel, our steel fixing anchors (hollow metal door anchors) feature a galvanized coating that delivers superior rust and corrosion resistance—ensuring durability both indoors and outdoors. The sturdy build prevents deformation or breakage, while the petal screw design of the m5 hollow door anchors and screws provides exceptional stability without damaging the hanging surface (e.g., thin metal plates, hollow plastic sheets, wood)
[Effortless Installation Process]: Installing these hollow door anchor and hollow core door anchors is a breeze. 1) Drill a hole matching the diameter of the m5 x 25 hollow door anchor set; 2) Insert the hollow metal door anchors into the hole; 3) Use a setting tool (or vice grips as an alternative) to expand the petal screw against the wall’s backside; 4) Thread the screw through your fixture and tighten. The anti-rotation design ensures secure seating, saving you time and hassle
[Wide Application]: Our hollow door anchors are incredibly versatile: perfect for hanging curtain rods, spice racks, picture frames, wall cabinets, license plates, and artwork on hollow core doors, caravan walls, aluminium cladding sheets, iron sheets, and more. Whether you’re working on home renovations, office setups, or RV upgrades, these sheet anchors and hollow wall anchors for thin walls are the go-to choice for reliable, secure fastening
[Reliable Performance]: Engineered to solve the challenge of mounting items on weak or thin surfaces, our m6 hollow door anchor set (hollow metal cavity fixing hollow door anchor) offers unbeatable hold on thin walls and hollow structures. Unlike flimsy alternatives, the steel fixing anchors maintain stability over time, making them essential for anyone needing long-term, trustworthy door anchor solutions for lightweight to medium-weight installations
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13% Off

mankk 40PCS Expansion Screw and Petal Nut Kit M4 M5 M6 Jack Car Metal Screw Petal Shape Metal Nut Anchor Screw for Hollow Wall Iron Skin Plasterboard

Jack Nut Threaded Insert Petal Nuts is a fastener specially designed for fixing thin plates. Its unique petal-like structure will automatically expand when stressed, thus providing a firm fixing effect, which is widely used in thin plates, hollow pipes and other scenes.
【Reliable Material】The expansion screw & petal nuts are made of high-quality carbon steel, the surface is galvanized, which has the effects of rust prevention and corrosion prevention, especially in wet or acidic environment. The galvanized layer is malleable, and can be processed by cold stamping and bending without damaging the coating, and can be used for a long time indoors and outdoors.
【Easy Installation】The petal-shaped design structure is adopted. When in use, only one pliers (such as elbow pliers) is needed to clamp the bottom of the nut, so that the sleeve part of the nut begins to expand like a petal, and then the screw is tightened, and the nut will further expand and finally be firmly fixed on the thin plate.
【Wide Application】Petal Nuts Set is widely used in automobile license plate fixing, steel structure shell plate connection, plastic chassis assembly and so on. It is especially suitable for fixing objects on thin iron plates, square pipes and other materials.
【Package include】M4*20,M4*25,M5*25,M6*25, 4 sizes,10 in each size, a total of 40pcs.Put it in a transparent storage box for easy carrying and taking.
Check Price
on Amazon.com
Disclaimer: While we make every effort to ensure accuracy, we cannot guarantee that all product specifications, pricing, discounts, and details are complete or error-free. Because information is subject to change, we recommend verifying all details directly with the retailer prior to making a purchase. As an Amazon Associate, we earn from qualifying purchases.

8 Expansion Bolts deals are available from: Amazon, starting from $6.29.

The biggest discount we found is 13% on mankk 40PCS Expansion Screw and Petal Nut Kit M4 M5 M6 Jack Car Metal Screw Petal Shape Metal Nut Anchor Screw for Hollow Wall Iron Skin Plasterboard at Amazon.

The lowest price we found is $6.29 while the highest is $18.88. Prices for the best Expansion Bolts deals average at $10.51.