Nut

Your Professional Nut Supplier

Rui'an Lin Tai Hardware Products Co. , Ltd, specializes in the production of stainless steel, copper, iron, aluminum solid rivets, semi-hollow rivets, sub-mother rivets, brand rivets, step rivets, special-shaped rivets, pins, screws and lathe parts and other fasteners.

Press Riveting Nut
1. Specifications and gauges: M2-M10.
2. Product grade: Class A.
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Locking Wing Nuts
1.A Wing Nut, also known as a Butterfly Nut,butterfly screw nut or wingnut, is a type of nut with two metal "wings" on each side.
2.This design allows the user to easily tighten or loosen...
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Hex Flange Self-Locking Nut
1.Hex Flange Self-Locking Nut is a special nut,has the characteristics of flange nuts and hexagonal locknuts.
2..Material:Stainless Steel(304).
3.Size:M5-M20.
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Spot Weld Nut
1. Product grade：A.
2. Advantages: It will not rust in humid environment, strong anti-oxidation ability, acid and alkali resistance, and still be as new after many years of use....
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Internal-external Teeth Nut
1. Specifications and gauges: M3-M12
2. Product grade: Class A
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Flanged Nylon Lock Nut
1.Flanged Nylon Lock Nut is a hexagon nut that combines a flange and nylon lock design.
2..Material:Stainless Steel(304).
3.Size:M4-M12.
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Square Weld Nut
1. Surface treatment: natural color
2.Specifications and gauges: M3-M12
3. Product grade: Class A
4. Excellent performance:
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Four Claw Nut
1. Specifications and gauges: M3-M12 2. Product grade: Class A
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Slotted Lock Nut
1.Slotted Lock Nut is also commonly known as lock nut or anti-loose nut.
2..Material:Stainless Steel(304)/Carbon Steel.
3.Size:M6-M30.
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Tri-Hole Plate Nut
1.The Tri-Hole Plate Nut is a special nut with three screw holes that is commonly used in scenarios that require a more robust connection or special installation requirements. ...
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High-quality Anti-loose Nut
1. Wear-resistant material: strong, durable, stable, reliable, high hardness and corrosion resistant.
2, Application: use in special occasions to prevent loosening and increase safety. A...
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Press-riveted Nut
1. Specifications and gauges: M3-M12
2. Product grade: Class A
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Quality products

We have advanced production and testing equipment, and our products meet various standards.

Rich experience

We have years of industry experience and a team of experienced engineers and technicians to ensure consistent precision and high quality of our products.

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Our team is committed to providing reliable and consistent service, ensuring that you receive high-quality products and customer support from us every time.

Professional team

The company is in possession of numbers of senior engineers and has abundant technique power, well conditioned equipment and technology comes to perfection.

What Is Nuts

Nuts are fasteners made from stainless steel, an alloy of iron, chromium & other metals. This combination makes Nuts a strong, durable & corrosion-resistant material. Nuts are often used in applications where strength & resistance to atmospheric corrosion.

Common Materials Used for Making a Nut

Steel: Steel is the most common material used for making nuts. It is strong and durable and can be heat treated to improve its properties. Steel nuts are typically less expensive than other types of nuts, and are available in a wide range of sizes and grades.

Stainless steel: Stainless steel is a good choice for nuts that will be exposed to the elements or corrosive chemicals. It is also non-magnetic, which makes it useful for certain applications. Stainless steel nuts are more expensive than steel nuts, but they are more durable and corrosion resistant.

Brass: Brass is a softer metal than steel, but it is also more corrosion resistant. It is often used for nuts that will be exposed to salt water or other harsh environments. Brass nuts are more expensive than steel nuts, but they are less expensive than stainless steel nuts.

Nylon: Nylon is a strong and lightweight plastic that is often used for nuts in applications where weight is a critical factor. Nylon nuts are also non-conductive, which makes them useful for electrical applications. Nylon nuts are less expensive than metal nuts, but they are not as strong or durable.

Other materials: Other materials that can be used for making nuts include aluminum, titanium, and copper. The specific material used will depend on the specific requirements of the application.

Types of Nuts

Dome
Protects bolt threads underneath while presenting a clean appearance. Also can prevent skin and clothes from snagging on sharp edges.
Acorn
A type of cap nut with the same capabilities. Named after its head, which is shaped like an acorn. Cap nuts are used across all industries and also resist vibration.
Wing
The side wings enable quick, easy tightening and removal by hand. For this reason, it should not be used if vibration is present.
Jam
Low-profile nuts that, when jammed into place against a standard nut, prevents loosening. Also used when a standard nut won't fit.
Flange
The flange serves the purpose of a washer, evenly distributing the load. Typically used in the automotive sector on exhausts.
Coupling
While not typically a bolt nut, these are used for connecting threaded rods or pipes together.
Nyloc
Insert creates friction, resulting in a gripping action and reducing chance of loosening due to vibration. Commonly used in white goods, computers and vehicles.
Square
A type of blind nut, its shape means that more of its surface is in contact with the material being, which reduces the chances of it loosening. Typically used with square-headed bolts.
Hex
Different types of hex nuts all provide a reliable hold. Easy to tighten and loosen due to its shape. Used in applications across all industries, from automotive to machinery.
Tee
For fastening soft materials such as wood or plastic. The flange on one side has hooks, which latch onto the material being fastened to strengthen the joint and leave a flush surface.
Slotted
Secured using a cotter pin or wire to prevent rotation. Typically used in applications where vibration is a constant threat.
Castle
The turret geometry on the castle nut differentiates this from the slotted nut. Their functions and how they work are the same
Keps-K lock nuts
Designed for easy assembly. The attached free-spinning serrated washer creates tension against the material's surface when installed onto a bolt. Note: Overtightening will cause the nut to fail.
Prevailing torque nut
The distortion of the top threads creates locking action, which causes the nut to resist loosening due to shock and vibration. They are installed with the conical top up, which makes these one-way lock nuts.

Different Applications for a Nut Made of Different Materials

Steel nuts: Steel nuts are the most common type of nut and are used in a wide variety of applications. They are typically used in applications where high strength and durability are required, such as construction, automotive, and machinery applications.

Stainless steel nuts: Stainless steel nuts are used in applications where corrosion resistance is important, such as marine applications, chemical processing plants, and food processing plants. They are also used in applications where high strength and durability are required, such as aircraft and aerospace applications.

Brass nuts: Brass nuts are used in applications where corrosion resistance is important and where high strength is not required, such as plumbing and electrical applications. They are also used in applications where a non-magnetic nut is required, such as medical applications.

Nylon nuts: Nylon nuts are used in applications where weight is a critical factor and where high strength is not required, such as aircraft and aerospace applications. They are also used in applications where a non-conductive nut is required, such as electrical applications.

Other materials: Aluminum, titanium, and copper nuts are used in specialized applications where their unique properties are required. For example, aluminum nuts are used in aircraft and aerospace applications because they are lightweight and strong. Titanium nuts are used in aerospace applications because they are lightweight, strong, and corrosion-resistant. Copper nuts are used in electrical applications because they are conductive.

Applications of Bolts and Nuts

Bolts and nuts find applications in a wide range of industries, including automotive, aerospace, construction, machinery, manufacturing, and many others. Some common applications of bolts and nuts include:

Automotive

Bolts and nuts are used in the manufacturing and assembly of automobiles, including engines, transmissions, chassis, suspension systems, and more.

Aerospace

Bolts and nuts are crucial in the aerospace industry, where high-performance fasteners are required to withstand extreme temperatures, vibrations, and loads.

Construction

Bolts and nuts are used in construction projects for joining structural components, such as steel beams, columns, and concrete forms, to ensure stability and safety.

Machinery

Bolts and nuts are used in the manufacturing of machinery and equipment, such as engines, pumps, turbines, and conveyor systems.

Know Your Nuts: All Metal Lock Nuts

Designed to develop a "prevailing torque" between the bolt threads and nuts threads, all metal lock nuts increase the resistance to rotation in an assembly.
● Flange nuts
Flange nuts feature a wide flange at one end that acts like an integrated washer, distributing the torquing pressure placed the nut across the surface of the material it's being secured to. Often including serrations on the underside of the flange, these nuts are regularly used in assembly lines where the speed of using a single fastener, as opposed to separate nuts and washers, can help increase productivity and overall output.
● Keps nuts
Keps nuts are similar looking to standard hex nuts, but also include an attached, free-spinning washer. The washer is sometimes called a k-lock or star washer.
● Stover lock nuts
Stover lock nuts are single-piece, prevailing torque hex nuts that feature a conical top, flat bottom bearing surface, and chamfered corners. In stover lock nuts, the locking action is created by distortion of their top threads during torquing, and can withstand severe shock loads and vibration.
● Two-way reversible lock nuts
In a two-way reversible lock nut, a standard hex nut is compressed with two or three indentations on the flat sides of the nut. These compressions can be circular or rectangular, but must be equal distances from each other. In order to create a controlled locking mechanism, the compressions slightly distort the center threads that lock when engaged with the mating bolt or screw. Designed for use with machine screws and low-carbon bolts, the two-way reversible lock nut allows for automatic assembly.

Factors to Consider When Choosing a Material for a Nut

Strength: The strength of the nut is important to consider, especially for applications where the nut will be subjected to high loads. Steel and stainless steel are the strongest materials that are commonly used for making nuts. Brass and nylon nuts are not as strong, but they may be suitable for applications where lower strength is required.
Corrosion resistance: If the nut will be exposed to the elements or corrosive chemicals, it is important to choose a material that is corrosion resistant. Stainless steel is the most corrosion resistant material that is commonly used for making nuts. Brass and nylon nuts are also corrosion resistant, but not to the same extent as stainless steel. Steel nuts can be zinc plated or coated with other materials to improve their corrosion resistance, but they are still not as corrosion resistant as stainless steel nuts.
Weight: Weight is an important consideration for applications where the weight of the fastener is a critical factor. Nylon nuts are the lightest type of nut, followed by aluminum nuts. Brass nuts are heavier than aluminum nuts, and steel nuts are the heaviest type of nut.
Cost: The cost of the material is also an important factor to consider. Steel nuts are the least expensive type of nut, followed by brass nuts, nylon nuts, and stainless steel nuts.

Know Your Nuts: Shaped Nuts

Next up in our educational series called know your nuts, we're talking about different types of shaped nuts. The use of shaped nuts varies from type to type, but in general, they all share some aspect of their design with more common standard nuts, with an extra feature added to achieve a specific functionality. Below are four of the shaped nuts most commonly used in construction and industrial applications.

Cap nuts
Cap nuts are traditional hex nuts with the addition of a smooth dome on one side. These are used in assemblies where protection of the bolt or threaded is important after assembly, either for performance or for safety. Cap nuts can also be used for purely aesthetic reasons, such as in automotive uses or in residential construction, where the end of a bolt could cause an unsightly distraction for the user.

Acorn nuts
Acorn nuts are a type of cap nut, where the domed side is pointed with a higher crown. This creates greater internal depth, allowing the bolt or rod to be threaded further into the nut.

Square nuts
As opposed to the traditional hex (hexagonal) nut with its six sides, square nuts only have four sides and look exactly as they sound, a perfect square. Square nuts are typically used where there is an inset or channel in the receiving surface, such as in furniture, railroad applications, or other metal assemblies. The larger surface area of square nuts allows them to more easily resist loosening.

Wing nuts
Wing nuts feature a head with two "wings" across from each other, making the nut able to be tightened and loosened by hand. Sometimes referred to as a "butterfly nut", these are mostly used for the purpose of temporary fastening, but can also be found in bicycles and musical instruments.

Tips and Tricks for Using Nut

Working with nut involves a few pitfalls. Following are some tips and tricks for using nut correctly and safely.

Use the right nut
Nut come in a variety of types, sizes, and materials. With the great variety of nut out there, you may end up with a toolbox full of ‘mix-and-match' screws, bolts, and rivets. Don't be tempted to use ‘what you have got' to join materials if you don't have matching nut for a particular join or the right kind of fastener for the materials you need to join.

Join nut to same type of nut
Join nut with other nut made from the same materials and the same grade, e.G. Hot dip galvanized nut with other hot dip galvanized nut.
The protective layer of zinc coating on ‘hot dip galvanized' nut slightly alters the thickness of fastener threads. This means that these kinds of nut are thus only truly secure when joined with other hot dip galvanized nut.

Use nut to join same or compatible materials
Never use aluminum nut to join stainless steel materials. Aluminum rivets will corrode when used on stainless steel. This can quickly compromise the strength of the join and destroy the nut.

Only use marine-grade nut in saltwater environments
Saltwater rusts steel and stainless steel, including all but the highest grade stainless steel nut.

Use fastener lubricant for stainless steel nut
Always use a fastener lubricant when joining stainless steel nut. This prevents ‘galling' (jamming) and stress on the fastener from friction. This will improve the strength and durability of the join.
Galling can also occur with other metal alloy nut, including with titanium and zinc nut.

Use the correct tools for the nut and join
Nut must be tightened or loosened with the correct size screwdriver and bit heads and tightened correctly with a torque wrench.

Use of the right size screwdriver or drill bit
Make sure you always use the correct screwdriver or drill bit for the fastener's head, or you may strip the fastener head in the process of tightening or loosening the screws or bolts.
Make sure the drill bit covers the length of the fastener head. Similarly, don't use a screwdriver that is too short. The result could be breakage or damage to the materials being joined together.

Don not overtighten (overtorque) nut
Use a correctly calibrated torque wrench to tighten nut. This will prevent overtightening. Overtightening nut can cause the fastener to break. Also called ‘overtorquing', overtightening nut can strip screw heads, damage threading, or break the screw head off completely.
Overtightening can be dangerous. Any fastener or material bits that fly off have the potential to cause injury. Stripping, slipping and breakages from using the wrong size screwdriver or drill bit can also be a safety hazard.

FAQ

Q: What is the purpose of a metal nut?

A: Nut, in technology, fastening device consisting of a square or hexagonal block, usually of metal, with a hole in the centre having internal, or female, threads that fit on the male threads of an associated bolt or screw. A bolt or screw with a nut is widely used for fastening machine and structural components.

Q: What are the applications of nut?

A: Bolts and nuts are used to permanently or semi-permanently fasten materials, usually metal. A nut is an attachment that fits the end of a bolt and strengthens its holding power. The bolt, which is non-tapered, then holds the part fastened with the nut.

Q: What is the nut used for?

A: A nut is a type of fastener with a threaded hole. Nuts are usually used opposite of a bolt to fasten parts together. The nut and bolt are held together by their threads' friction, a slight stretch of the bolt, and compression of the parts.

Q: What are the uses of nut and bolt?

A: Both the bolt and the nut grip the materials being fastened, creating a bolt joint, with the nut also preventing axial movement. The effect of the bolt joint comes down to the axial clamping force provided by the nut and the shank of the bolt, which acts as a rod that presses the joint against sideways shear forces.

Q: Why are nuts used in engineering?

A: Nuts are used in conjunction with bolts to create a stronger joint. Both bolts and nuts come in a variety of sizes and styles to meet the needs of different applications. While threaded fasteners are most commonly made from metals, there are also some made from plastics and other materials.

Q: What are nuts used for engineering?

A: Nuts and bolts have been widely-used by engineers for centuries, nuts are an internally threaded retaining device, generally used to securely fasten a threaded screw against a target housing. Nuts are available in a number of varieties, from hexagon and square nuts, to more specialist cage nuts and tee nuts.

Q: What are metal nuts made of?

A: Steel is the most common fastener material. Steel fasteners are available plain as well as with various surface treatments such as zinc plating, galvanization, and chrome plating. Steel fasteners are commonly available in 4 grades: Grade 2, grade 5, grade 8, and alloy steel.

Q: How do you keep a nut from coming loose?

A: If you see self-loosening happening on your vehicle, deck or shelves and it is driving you 'nuts,' there are two main options – 1) Use double nuts, which provides a force pushing against the self-loosening strain, or 2) Use Nyloc nuts, which have a circle of plastic inside them to lock the nut in place.

Q: What shape are nuts?

A: Bolts and nuts are designed with a hexagonal shape because it makes them easy to turn. With six sides, you can turn a fastener just one-sixth of the way to reach the next flat parallel. There are six flat parallels on hexagonal bolts and nuts.

Q: What is the dome nut used for?

A: Hex dome nuts or acorn nuts got their names due to the dome-shaped projection on one side of the nut. This is mostly used to protect objects close to the ends of screws from scratches and structural injuries. It also reduces the effects of physical mishaps on human skin if it somehow forcefully hits the fasteners.

Q: What are fastener nuts?

A: A nut is a type of fastener with a threaded hole. Nuts are almost always used in conjunction with a mating bolt to fasten multiple parts together.

Q: What is fasten nut?

Q: What is the difference between a nut and a bolt fastener?

A: Bolts are threaded fasteners with external male threads. They mate with nuts, which have female – meaning, internal – threads. Both the bolt and the nut grip the materials being fastened, creating a bolt joint, with the nut also preventing axial movement.

Q: What is a fastener bolt?

A: A bolt is an externally helical threaded fastener capable of being tightened or released by a twisting force (torque) to a matching nut. The bolt has an external male thread requiring a matching nut with a pre-formed female thread.

Q: What is an example of a fastener?

A: Some examples of fasteners are bolts, screws, nuts, grommets, rivets, and studs.

Q: What is a fastener with a threaded nut?

A: Nuts – Usually a female threaded nut fits over a bolt in a variety of designs to fix two pieces of material together. Bolts – Male threads on the outside of a cylinder that either screw into a female threaded piece of material or uses a nut to fasten materials in place.

Q: What is the best tool to fasten nuts?

A: The most commonly used types for home use are open-end wrenches and box wrenches. Open-end wrenches are used for common nuts and bolts. Box wrenches have ends designed to turn hex and square bolts. Combination wrenches combine the functions of both open-end and box wrenches.

Q: What are anchor nuts used for?

A: Anchor nuts, also called nut plates, are self-wrenching, self-locking nuts for use in closeout or space constrained areas. Anchor nuts provide a permanent nut element on the inside of the joint so that a skin, access panel, fairing, or other member can be attached with a screw.

Q: What is the most common form of fastener?

A: Screw fasteners are the most commonly used type of fasteners. They are highly versatile and durable. These socket screws have to fix eroded internal threads spanning across their whole length and their heads come in various shapes. Screws require internal threads in objects for holding them together.

Q: What is a bolt that doesn't need a nut?

A: Tap bolt: This kind of bolt is completely threaded. It is used in a threaded or tapped hole and does not need a nut. A bolt is a type of fastener that often needs a nut that is tightened on the end and helps fasten several materials together.

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Shaped Nut, Cover Type Nut, Wing Screw Dimensions