Flange nuts are essential fasteners in many applications, providing a wider load-bearing surface than standard nuts. Their integrated washer design prevents the need for separate washers, simplifying assembly and reducing the risk of loosening. Selecting the correct flange nut ensures a secure and reliable connection, crucial for the integrity of any project.
Looking for the best Flange Nuts?
Discover now our comparison of the best Flange Nuts. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Flange Nuts are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Flange Nuts in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
No. 1
Aienxn 85PCS 6 Metric Sizes 304 Stainless Steel Hex Flange Nuts Assortment Kit-M3 M4 M5 M6 M8 M10
- Premium Quality: Aienxn hex flange nuts are made of 304 Stainless Steel
- Features: Aienxn hex flange nuts is not easy to slip, corrosion resistant, easy to install and disassemble, and reusable
- Wide Application: These hex flange nuts are suitable for home, automotive, and shop use; Hex flange nuts assortment kit is a great replacement for industrial and construction fasteners, also can be a important accessories in your daily life
- Size: The hex flange nuts have 6 sizes of 85pcs, M3, M4, M5, M6, M8, M10, the most commonly used stainless steel gasket is packed in a plastic box, and different sizes can meet your different needs
- Timely Reply: If you have any questions, please contact us by email and we will reply you within 24 hours
No. 2
Aienxn 136PCS 6 Metric Sizes Black Carbon Steel Hex Flange Nuts Assortment Kit -M3, M4, M5, M6, M8, M10
- Premium Quality: Aienxn hex flange nuts are made of carbon steel and zinc plated
- Features: Aienxn hex flange nuts is not easy to slip, easy to install and disassemble, and reusable
- Wide Application: These hex flange nuts are suitable for home, automotive, and shop use; Hex flange nuts assortment kit is a great replacement for industrial and construction fasteners, also can be a important accessories in your daily life
- Size: The hex flange nuts have 6 sizes of 136pcs, M3, M4, M5, M6, M8, M10, the most commonly used nuts is packed in a plastic box, and different sizes can meet your different needs
- Timely Reply: If you have any questions, please email us and we will reply you within 24 hours
No. 3
QXSKSLH 50 Pieces 1/4-20 Flange Nuts, 1/4-20 Serrated Hex Flange Lock Nuts, 304 Stainless Steel,Plain Finish
- Thread Pitch: 20 TPI; Material: Stainless Steel
- Package Content: 50Pcs x Hex Flange Nut
- Main Color: Silver Tone;
- Hex Size: 11mm(0.43")(Width) Height: 6mm(0.24")
- Flange Diameter: 15mm(0.59")
SaleNo. 4
129Pcs Hex Flange Nuts Assortment Kit Stainless Steel 304(18-8) M3 M4 M5 M6 M8 M10 M12 Metric Hex Nuts
- Package Include: Our flange hex nut kit include M3/M4/M5/M6/M8/M10/M12 7 different sizes ,totally 129 pieces,enough quantity hex nuts to meet your demands.
- 304(18-8) Stainless Steel :These flange nut made of high quality 304 stainless steel. High temperature, corrosion and rust resistance. High quality stainless steel also ensures the durability of the screw,which can be used for a long time without frequent...
- Wide Applications:Flange Hex Nuts Assortment Kit Serves a wide range of use and for professionals, amateurs, landlords, repairmen, other craft DIY . The set is perfect to replace broken and missing hexagonal nut.
- Storage:This screws nut assortment kit comes in a plastic storage case for organization and portability,and comes with a dimension chart for distinguishing different sizes easily.
No. 5
Hard-to-Find Fastener 014973242541 Coarse Hex Serrated Flange Nuts, 3/8-16, Piece-100
- Diameter: 3/8"
- Material: Steel
- Finish: Zinc
- Driver Type: 9/16" Wrench
- Thread Type: 16 (Coarse)
$20.17
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No. 6
(15 Pieces) 3/8"-24 Grade 8 Hex Flange Prevailing Torque Top Lock Nuts Phos &Oil
- 15 Pieces Total
- Wrench Size: 9/16"
- Flanged Nut with Top-Locking Feature
- Diameter/Pitch: 3/8"-24 | Fine Thread
- Material: Grade 8 | Finish: Phosphate & Oil
No. 7
5/16-18 Serrated Flange Hex Nuts, 50 Pack 5/16"-18 Hexagon Flange Nuts, Carbon Steel Zinc Plated, UNC Nuts...
- Thread Size:5/16-18; Inside Diameter: 5/16 Inch; Thread Size: 18 Threads per Inch, Hex Socket Drive 1/2"; Overall Height: .271 Inches; Flange Diameter: .6765 Inches; Measurement System: Inch
- Carbon Steel - Our serrated flange hex nuts assortment kit is made of premium quality carbon steel with zinc coated, can provides strength and great protection, good for outdoor use
- Convenient Packaging - You will get 50 pieces serrated flange hex nuts are packaged in a clear plastic box, which keeps them organized and easily accessible; The box also helps prevent damage to the nuts during storage and transportation
- Replacement Nuts - Flanged nuts spread their fastening force over a wider area than traditional nuts, this reduces the potential for damage to the mounting surface and allows for a more secure connection on uneven mounting surfaces; Widely used in home...
- Application - Hex flange nuts are widely used in home, automotive, and tool shop; 5/16"-18 hex flange nut is a great replacement for industrial and construction fasteners, also can be a important accessories in your daily life
No. 8
M6 x 1mm Thread 304 Stainless Steel Serrated Flange Metric Hex Lock Nuts 26PCS
- Thread Size: M6(0.24"); Material: Stainless Steel
- Product Name: Hex Flange Nut; Weight: 83g
- Package Content: 26Pcs x Hex Flange Nut; Height: 6mm(0.24")
- Main Color: Silver Tone; Hex Size: 10mm(0.4")(Width)
- Thread Pitch: 1mm; Flange Diameter: 13mm(0.51")
No. 9
Hilitchi 100Pcs 304 Stainless Steel Serrated Flange SAE Hex Lock Nuts...
- ✅[QUALITY MATERIAL] 304 stainless steel which is wear-resistant and rust-proof, it is very durable to use. Plus, by heating treatment and strict quality control, our flange nuts have smooth and bright surface.
- ✅[SIZE AND QUANTITY] We have various size in SAE and quantity for you to choose. 1/4-20(35pcs), 5/16-18(25pcs), 3/8-16(20pcs), 10-24(10pcs), 8-32(5pcs), 6-32(5pcs)
- ✅[STANDARD THREAD] Strong and durable, high hardness, great craftsmanship. Complete, neat and clear thread without burr.
- ✅[CARE TO DETAIL] Standard hexagonal type of flange nut, uniform force, not easy to slip during operation, quick installation, time saving fastener
- ✅ 【QUALITY AFTER-SALE SERVICE】If you do not satisfy with our products or if you have any questions, please come to us, we would reply you within 12hours. We would work out a solution to your satisfaction.
SaleNo. 10
Hard-to-Find Fastener 014973242497 Coarse Hex Serrated Flange Nuts, 1/4-20, Piece-100
- Diameter: 1/4"
- Material: Steel
- Finish: Zinc
- Driver Type: 7/16 Wrench
- Thread Type: 20 (Coarse)
−11%
$12.49
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Last update on 2026-04-17 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Flange Nuts
Material and Coating
The material of a flange nut is critical for its strength and corrosion resistance. Common materials include steel (often zinc-plated for rust protection), stainless steel (for superior corrosion resistance in harsh environments), and brass (for non-sparking applications). The coating, such as zinc or a black oxide finish, further enhances durability and appearance. Consider the operating environment and load requirements when choosing the material and coating.Flange Diameter and Tooth Type
The flange diameter determines the surface area of contact, which is important for distributing load and preventing damage to the connected materials. Larger flanges are suitable for softer materials or applications requiring greater load distribution. Some flange nuts feature serrations on the underside of the flange. These teeth bite into the mating surface, creating a locking action that resists vibration and prevents loosening. Choose serrated nuts for applications prone to movement or vibration.Frequently Asked Questions
What is a flange nut?
A flange nut is a type of nut that has a built-in washer, which is a broad flange at one end. This integrated washer provides a wider bearing surface, distributing the load more evenly and preventing damage to the material being fastened.
When should I use a flange nut instead of a regular nut and washer?
Flange nuts are ideal when you need to distribute pressure over a larger area, such as with soft materials like plastic or wood. They also simplify assembly by eliminating the need for a separate washer, and their design can offer better resistance to loosening.
What is the difference between a serrated and non-serrated flange nut?
Serrated flange nuts have teeth on the underside of the flange that dig into the mating surface, providing a locking action that resists vibration and prevents the nut from loosening. Non-serrated flange nuts have a smooth flange and rely on tension alone to stay in place.
Are stainless steel flange nuts suitable for outdoor use?
Yes, stainless steel flange nuts offer excellent corrosion resistance and are highly recommended for outdoor applications or environments exposed to moisture and chemicals. They maintain their structural integrity and appearance over time.