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Our picks are based on Amazon bestseller rankings, Amazon customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.
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.
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.
[MATERIAL] 100% Made of high quality 304 stainless steel (also known as 18-8 or A2 stainless steel), they have good corrosion resistance, rust resistance and high hardness, which provides a longer service life, can be used indoor and outdoor, even in...
[FEATURE] Flange works like a washer to distribute the load. Serrations can help grip the material surface and prevent the nuts from loosening due to vibration.
[APPLICATION] Easy installation for mild vibration environment. Can be used in machinery, electrical appliances, automobile, shipbuilding and etc.
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
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
【Sizes】1/4"-20 flange nuts, thread size: 1/4-20, thread pitch: 20 threads per inch, coarse thread, fully threaded, exterior finish: bright finish; color: silver tone, total 100 pieces packed in a cardboard box, enough quantities can satisfy your daily...
【Material】304 stainless steel, stainless steel material which have good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas. They have superior rust resistance and excellent oxidation resistance, which...
【Design】HELIFOUNER flange nuts have a washer-like base design which act as an integrated, distribute pressure over a greater surface area and ensure the fastener stay tight. The serrations can prevent the vibration of the nut from moving the fastener...
【Wide Applications】Widely used in all kinds of precision machinery, classified instruments, instruments, electronic products, household appliances, communication products, locks, lamps, lights, toys, etc. Ideal for use by a variety of workers and...
【Metric Flange Bolt Assortment】This is nice selection of metric flange head bolts of the most common lengths along with the nuts and washers, Including M6-1.0 x 12/16/20/25/30mm, M8-1.25 x 16/20/25/30mm, M10-1.5 x30mm, 280pcs in total. The fully...
【10.9 Alloy and Black Galvanized】This flange bolt kit is crafted from 10.9 grade alloy steel with a durable black galvanized finish. If you're working inside the engine, you'll need high-strength Class 10.9 bolts on hand. Class 8.8 bolts are not rated...
【Time & Money Saver】Great bins for storage with a size chart on the inside and outside. Compared to the time it takes to go to a hardware store and the cost of buying individual packs, this flange bolts nuts washers kit is a time and money saver.
【Wide Applications】The flange has serrations grip that increases the torque needed to loosen the bolt, which is perfect for mounting something that exposed to vibrations and harshness during action. Widely used in home improvement, automotive projects...
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...
Last update on 2026-10-16 / 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.
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