Formwork Anchor Nut for Construction Tie Rod

 

Formwork anchor nuts (formwork wing nuts) are core load-bearing fasteners within the formwork tie-rod system for assembling concrete wall and column formwork. They effectively withstand lateral pressure during concrete pouring, firmly securing steel form panels in wall and column construction and preventing concrete leakage. Our anchor nuts meet application demands for a wide range of wall and column formwork projects.                      

 

 

We supply both two-wing and three-wing anchor nuts.        

 

 Round base plate: 70-130 mm diameter, custom sizes supported       

 Thread sizes: DW15/17, DW20 , burr-free full-profile threads for    

    smooth rod engagement

 Material options: Q235 carbon steel, 45# steel, ductile iron; both

forged and casted anchor nut in stock      

 Forged anchor nut: max load-bearing capacity up to 200 KN, over

50 re-uses under proper operation

 Other formwork nuts : hex nuts, tie-rod wing nuts,combination plate nut

 All nuts must match corresponding-size formwork tie rods

 Load-testing supported with test reports provided

 Custom Dimensions Available

 Electro-galvanized Anti-rust Finish

 

Our anchor nuts work together with formwork walers to hold steel form panels securely in position. The central machined hole allows tie rods to pass through quickly for convenient on-site assembly

 


 

Most Popular Anchor Nut

 

 

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First 123 Last
 

Forged vs Casted Iron Formwork Anchor Nut

 
 


          Forged formwork anchor nut                                                                               Casted iron formwork anchor nut

forged formwork anchor nut heavy duty for wall formwork

As a heavy-duty wing nut for Dywidag tie rods, the forged formwork anchor nut delivers excellent load-bearing performance to withstand heavy concrete pressure within concrete formwork. It is the preferred choice for large-scale engineering projects that require repeated use and high safety standards.
cast formwork anchor nut cost effective concrete formwork

The casted iron formwork anchor nut can also works with tie rods for general concrete formwork. It offers better cost-effectiveness compared to the forged version. Compatible with standard formwork tie-rod systems, it is well-suited for light-duty and short-term construction jobs.

Common Types of Formwork Anchor Nut 

two wing formwork wing nut for concrete tie rod

Tie Rod Wing Nut(butterfly-type)

 

The formwork wing-style anchor nut comes with two wing lugs. During installation, pass the tie rod through the formwork panel. Slide the waler plate and then the wing nut onto the exposed end of the tie rod. Tighten manually by gripping the wing lugs, then double-check that the panels are firmly secured.

Tie rod wing nuts are available in , D15-17 and D20 sizes to match different project requirements.

Combination Plate Nut

 

Combination plate nut , also known as wing nut pivot plate, is a locking component for concrete formwork tie-rod systems. It consists of a wing nut and base plate connected by a pivot pin. Base plates are available in round and square styles.Manufactured in forged and cast versions, it fits formwork tie rods of DW15/17 , and DW20 sizes. It is widely used for wall, column and slab formwork projects.

formwork combi nut combination plate nut for formwork system
formwork hex coupling nut for formwork tie rod connection

Hex Nuts

 

Hex nuts (also called Formtie hex nut,hex coupling nuts or hexagonal nuts) are applied in tie-rod systems within building formwork assemblies.

Two sizes are available: 30*50 mm and 30*100 mm. They can replace wing-style anchor nuts where working space is limited.

Wellfit manufactures hex nuts in two material options: steel hex nuts and cast iron hex nuts.

DW15/17 Anchor Nut

 

DW15/17 anchor nut is a heavy-duty fastener for concrete formwork and formwork shoring systems. It works with 15 mm / 17 mm formwork tie rods to form the wall fastening system and evenly distributes load pressure onto the formwork panels.

three wing formwork anchor nut D17 for formwork tie rod
DW20 two-claw formwork anchor nut for 20mm tie rod

DW20 Anchor Nut

 

The DW20 anchor nut is a heavy-duty threaded fastener, generally manufactured from Q235 carbon steel or ductile iron. Designed for concrete formwork and shoring systems, it pairs with 20 mm diameter tie rods and is applied in wall, column and bridge projects.

3-Claw Wing Nut

 

The 3-claw wing nut serves as a locking fitting for concrete formwork systems and fits DW-series formwork tie rods. Its three-claw structure enables easy hand-tightening with no tools required. Available in forged and cast construction. Commonly used for wall and column formwork, it secures formwork panels .

3-claw formwork wing nut for concrete wall column formwork
 

Size Match Guide for Formwork Tie Rod

Always match your anchor nut thread size to your formwork tie-rod. Wrong size will create safety risks during concrete pouring.

D12 anchor nut → matches D12 formwork tie rod

DW15-17 anchor nut → matches DW15 / DW17 tie rod, the top pick for wall formwork

D20 anchor nut → for heavy-load D20 tie rod, used on column and large concrete structures

Custom thread and base plate sizes are available. Send over your tie-rod specs if our standard sizes do not meet your needs.

Matching Formwork Accessories

A formwork anchor nut cannot work alone in the full tie-rod system. Customers often buy these formwork accessories together:

 Formwork Tie Rod 

 Waler Plate / Washer Plate

 Hex coupling nut 

Typical Application Scenarios

Our formwork anchor nuts and wing nuts fit many concrete formwork types:

 Wall formwork and column formwork for residential buildings

 Slab formwork and beam formwork for commercial construction

 Timber formwork and steel formwork projects

 

FAQ

Q1:What is a formwork anchor nut used for?

The formwork anchor nut, also named formwork wing nut, is a heavy-duty fastener. It locks form panels and holds back concrete side pressure during pouring.

Q2:Which tie-rod sizes fit your anchor nut?

Our standard stock anchor nuts fit D12, DW15-17 and D20 formwork tie rod. Custom sizes are available on request.

Q3:Should I pick two-wing or three-wing anchor nut?

Two-wing wing nut fits light-duty work and narrow spaces. Three-wing anchor nut is better for heavy loads and repeated site use.

Q4:Can I get a load-test report for the anchor nut?

Yes, we can provide load-test documents for your project when you ask.

 


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As one of the most professional anchor nut manufacturers and suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy high quality anchor nut at competitive price from our factory.

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