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China Screws Manufacturers Factory Suppliers

 

 

We specialize in producing all kinds of Screws products, mainly Decking Screw, Machine Screw, Self Drilling Screw, Self Tapping Screw, Wood Screw, Stainless Steel Screws, Concrete Screw, Chipboard Screw, Bugle Head Decking Screw, Truss Head Self Drilling Screw, Pan Head Tapping Screw, Slotted Wood Screw, Hex Head Wood Screw, SS Hex Head Wood Screw, etc.
Haiyan Gete Hardware Co.,Ltd. was established in 2014. After years of operation, it has mature technical expertise, advanced process equipment, extensive production experience, and a complete service system.
We have established long-term cooperative relationships with customers around the world, allowing customers around the world to buy high-quality products and enjoy excellent customer service.

 

Company Advantages

 

Well-Experienced
Haiyan Gete Hardware Co.,Ltd was established in 2014, with more than 10 years of manufacturing experience, creating many successful cases and can provide customers with perfect solutions. Our fastener and hardware business improves year by year in Europe and North American market.
Professional Team
We have hundreds of professional and technical personnel, and we can provide you with professional services. Professional engineers also can provide expertise consultations and professional advice on product selection and maintenance. Firmly supported by a fully experienced sales and engineering team, we can assist you in finding the exact hardware and fastener products you plan to purchase.
Competitive Pricing
We offer competitively priced for our products, ensuring that we can offer our customers a high-quality solution without breaking the bank. We also can offer different discounts based on your order quantity.
Quality Assurance
We adhere to stringent quality control measures to ensure that our products meet and exceed industry standards. Our fasteners are manufactured using premium materials and undergo rigorous testing to guarantee their durability, strength, and reliability in diverse operating conditions.
Customized Services
We offer customization options for our fasteners, including variations in size, material, and finish. This flexibility allows us to tailor our products to specific project needs, ensuring optimal performance and compatibility and our team is capable of developing new products or providing technical solutions tailored to customer requirements. If you have any special request, please send us the details.
Expansive Market Reach

With an experienced and professional team, we have exported our products to many countries and regions all over the world. Our products sell well in mainstream markets such as Europe, North America, Japan, South America, Oceania, and Asia. We have established long-term cooperative relationships with customers around the world.

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Introduction to Screws

A screw is a broad category of mechanical fastener with a threaded shaft, designed to screw into a part. This includes wood screws and self-topping screws, which have a tapered shaft with sharp threads designed to cut a mating thread in the part to which they are fastened. It also includes machine screws, which much more closely resemble bolts, but their entire shaft is normally threaded.
A screw is that attributes its mechanical capabilities to the helical groove that extends around the circumference of the device's shank. These threads provide the friction and traction that serves a screw's purpose: to assemble or position two workpieces in relation to each other.
Screws come in many varieties. The external threads on the screw can either mate with an internally threaded nut or hole, or cut its way into a soft material. Screws are inserted via torque applied--in a clockwise manner--to the head with a screw drive.

Flat Head Square Drive Deck Screw Ruspert

 

Advantages of Screws
SS Oval Head Torx Drive Deck Screw with Slot
Flat Head Square Drive Deck Screw Ruspert
Hex Flange Head Decking Screw
Hex Washer Head Self Drilling Screw

A Mechanical Edge
When you choose screws, you get a mechanical advantage in the process. Driving in a screw uses less energy when compared to hammering in a nail into the same material. So for those using hand tools, then the project instantaneously easier when screws are used. And the same goes for the use of power tools, which require less force and place less strain on the tool's motor.
Extra Strength & Long-Lasting Hold
Screws are very strong and are built to last. This is a stark contrast to nails, which may come loose over time. This happens when the materials they connect with begin to expand and shrink over time. Screws are built to resist this problem. Their hold is longer-lasting and stronger. And since screws are so strong, there is less of a worry about the durability and hold. So it gives the material more of a piece of mind when done.
Rust Resistant
Since screws offer a strong and tight bond with their adjoining material, this makes them less susceptible to rusting. The tight hold prevents moisture and contaminant from coming into contact with the screw's shaft, thus preserving it for a long-lasting hold. So, even if the head of the screw begins to rust, the shaft will remain intact and hold due to this preservation. This advantage makes screws a much better choice than nails for a long-term hold.
Advantages of ScrewsMany Different Sizes & Shapes
There are many different sizes and shapes for screws and they come with varying thread patterns. So you can get one specifically designed for use on wood, drywall, sheet metal, concrete, or more. When you use the proper screw type, it improves the long-term use of a screw. Screws also utilize different types of heads, which makes them suitable for use with different types of tools. And thus, easier to complete a job, since you have more tools at your disposal to use.
Easy to Remove
When it comes to removal, there is no fastener that is easier than screws. Of course, you can remove nails and staples. However, you likely need a special tool to get them out. With a screw, they back out of their slots with the same tool that drove them in. So you don't need to go looking for a different tool and can save that time working.
Reuse Screws
Due to the strength and longevity of screws, you can reuse them more when compared to nails. They seldom bend during the removal, so they can be reused for another application. You can also reinsert them into the same hole without sacrificing strength.

 

Types of Screws

 

 

Decking Screw
Decking Screws are ideal for outdoor projects, particularly for securing decking boards but they can also be used for a whole host of outdoor woodworking tasks such as cladding, fencing, doors, gates and much more. They are designed to withstand exposure to weather elements and offer superior corrosion resistance.

Machine Screw
A machine screw is similar to a bolt and has a diameter of 0.75 inches or less. Due to their size restriction, established by the American Society of Mechanical Engineers (ASME), machine screws are smaller than other types of screws. When joining or connecting two pieces of metal, machine screws are inserted into threaded holes. The size of the threads, helical ridges, remain the same from the top of the screw to the tip.

Self Drilling Screw
Self drilling screws create internal threading when they are installed. They are fully threaded from the tip to the head, with threads that are harder and more rigid than the materials they are joining. Self drilling screws have a variety of tips in unique shapes. Notched tips or drill bit tips can easily be installed and create their own space in the substrate.

Self Tapping Screw
Self-tapping screws is a term generally used for screws designed to cut their own thread in sheet metal, although in a general sense wood and plastic screws are also self-tapping. These types of screws often have a sharp pointed end and sharp threads on a tapered shaft. They may have a section of unthreaded shank, like a bolt.

Wood Screw
Wood screws are designed to join pieces of wood and made of various types of metals. They have a tip, threads, head, and shank with the shank being partially threaded with the threads covering three fourths of the body of the screw. The partial design is common but not the only type of wood screw since there are wood screws with the shank completely threaded to the head.

Stainless Steel Screws
Stainless steel screws are strong, durable, and resistant to rust, corrosion, heat, cold, and water. They are made from iron and alloy elements like chromium, nickel, molybdenum, and other molecules.
Stainless steel screws are a popular choice for outdoor projects because of their weather-resistant qualities. They are used in many applications, including: Building decks, Outdoor furniture, Sheds, Lawn decorations.
Stainless steel screws are 100% recyclable and have an excellent life cycle. When installed in standard or test circumstances, stainless steel fasteners and washers would generally be expected to remain in a serviceable condition for 60 years or more.

 

Flat Head with Dramond Nibs and Saw Thread Chipboard Screw

 

Applications of Screws

Fastening into threads: Machine screws thread into pre tapped holes of compatible thread size. Self-tapping screws are designed to cut their own threads in a pre-drilled, untapped hole. Applications: electronics assembly, automotive manufacturing, woodworking
Convenience and speed: Faster and easier to install since they don't require a separate nut. This makes them suitable for applications where efficiency matters. Applications: Assembly line manufacturing, sheet metal fabrication
Smaller or lighter loads/non-structural applications: Screws don't require nuts and are suitable for lighter load-bearing applications where the load is not significant, such as securing small components, fastening electronics, or assembling furniture. Applications: Consumer appliances, electronic devices, furniture assembly
Materials with low shear strength: Suitable for materials with lower shear strength, such as plastic or particleboard, where they can create strong connections. Applications: Plastic enclosures, cabinetry, furniture

 

What are the Parts of a Screw

 

 

The Tip
The pointed end of a screw is known as the tip. Most screws have a sharp and pointed tip that's able to bore a hole into surfaces. The tip is usually narrower than the rest of the screw. This allows it to penetrate otherwise hard materials. Without a tip — or with a wide tip — a screw may struggle to penetrate hard materials. The tip often changes depending on what material the screw is intended to be used on.
The Threading
Threading is the section of a screw that contains helical ridges. Screws rely on this threading to remove material from the surfaces into which they are driven. The threading essentially scoops out material as the screw is driven into a surface. When a screw is driven into a surface, it will displace some of the surface's material. The material will enter the helical ridges where it travels up and out of the surface.
The Shank
Screws also have a shank. For wood screws, the shank is the unthreaded portion that's found above the threaded portion. Wood screws have an unthreaded shank to create a stronger and more secure hold. With only part of a wood screw being threaded, it offers a stronger hold than that of traditional screws with complete threading from top to bottom. Other types of screws have a fully threaded shank, meaning the threading extends all the way from the head to the tip. Wood screws are different because they almost always have an unthreaded shank.
The Head
Finally, the head is the top section of a screw. There are two types of screw heads: traditional and counter-sunk. Counter-sunk heads are intended to rest flush with the surface into which they are driven. In comparison, traditional screw heads protrude out of the surface into which they are driven. Both traditional and counter-sunk screw heads feature one or more notches, which are designed to support the use of a screwdriver. To drive a screw into a surface, you must press the screwdriver into these notches, after which you can turn the screwdriver.
The Drive
When people ask "Flat head of Philips head?", they are actually referring to the type of drive not the head of the screw. The drive is a crucial component of the screw as it determines what type of screwdriver needs to be used to install the screw.

 

Certifications
 
 

We have various technical certifications incorporate: GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS . The quality of our products is highly praised by customers.

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Products Description
 

We have a fully automatic CNC production line, and are committed to providing customers with the best products and services.

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Frequently Asked Questions
 

Q: What is the difference between Bolts and Screws?

A: To the naked eye, there does not appear to be much difference between a bolt and a screw. They are both threaded fixings and have a head for tightening the fastener but there is more to it than that.
The most obvious way of differentiating between a bolt and a screw is that a bolt is not usually threaded all the way along its shank as it has a plain portion. A screw, however, is threaded fully to the head.
A screw is usually installed into a tapped hole, unless it is a self-tapping screw which creates its own thread. Screws don't need nuts, as they become secure by being tightened into the hole with a screwdriver or driver bit which fits into the drive recess. Generally speaking, screws are shorter than the width of the material they are being screwed into, so that they don't protrude on to the other side.
Bolts are designed to be installed with a suitable nut. The hole for a bolt is not tapped as the bolt is pushed through and is fixed and tightened using a nut at the back of the material being fastened. So a bolt will be longer than the width of the material it is being used on, as it needs to protrude through to the other side to screw into the nut. The unthreaded portion of the bolt (which sits inside the material) adds strength, making it more resistant to shear forces, compared to fully threaded screws. Bolts are usually fastened using a spanner or other tool which grips the head whilst the nut is tightened.

Q: What are the disadvantages of Screws?

A: Disadvantages of Screws:
Lower load capacity: Unsuitable for heavy-duty or high-stress applications.
Less clamping force: Lack of a nut means less clamping force than bolts.

Q: What should you pay attention to when choosing Bolts and Screws?

A: Considerations for choosing between bolts and screws:
The choice between bolts and screws hinges on several critical factors. Load-bearing requirements play a pivotal role, with bolts being the preferred choice for high-load and structural applications due to their superior clamping force and strength. When paired with nuts and washers, bolts reduce stress concentrations, which is important in applications where uniform force distribution is crucial.
Screws are more suitable for lighter loads and non-structural tasks. Material compatibility is another crucial consideration; screws excel with materials like plastic or wood due to their ability to create strong connections. Accessibility and space constraints also come into play, with screws being more practical in confined spaces. Adjustability and ease of disassembly make screws ideal for applications requiring fine-tuning or future maintenance, while bolts can be adjusted but may require more effort.
The fastener you use should align with the specific needs of your application, balancing load-bearing capacity, material compatibility, access constraints, and required adjustability.

Q: What are the advantages of using Screws?

A: Easy to install: Straightforward to use – simply install with screwdrivers or power drills.
Adjustable: You can make adjustments after installation, which is useful when alignment or positioning needs to change.
Easy to remove: Simple to remove without damaging materials.
Wide material compatibility: Can be used with various materials, including wood, plastic, metal, and composites.

Q: What Causes Stripped Screws?

A: The reasons that cause screws to fall off are as follows:
Corrosion: Corrosion can cause stripped screws. Most screws are made of steel. As an iron alloy, steel is strong — but it's also susceptible to corrosion when exposed to moisture. If the head begins to corrode, it may no longer provide a uniform and stable recess for your screwdriver.
Over-Tightening: One of the most common causes of stripped screws is over-tightening. You can tighten screws, of course, by turning them clockwise with a screwdriver. Once the head becomes flush with the surface of the object in which it's installed, though, you should typically stop. Continuing to turn the screw may strip it.
Wrong Screwdriver: Another common cause of stripped screws is using the wrong screwdriver. If the screw has a Phillips head recess, for instance, you should use a Phillips head screwdriver. If the screw has a slotted recess, you should use a slotted or flat-head screwdriver. At the same time, the screwdriver should be the appropriate size for the screw's recess. Using a screwdriver that's too big or too small will increase the risk of stripping.
Cheap Screws: Cheap screws are more likely to strip than their high-quality counterparts. Stripped screws are characterized by a worn, degraded head recess. Rather than being solid and intact, they have a worn-down head recess. If a screw is made of cheap, low-quality materials, it may quickly degrade. You can avoid stripped screws and similar headaches by investing in high-quality screws.
Improper Tightening: Improper tightening is a common cause of stripped screws. Whether you're using a Phillips head or flat-head screwdriver, you should push forward. In other words, your screwdriver should be directly in front of the screw as you push and turn it. If you push to the side, you'll inadvertently wear down the screw's head recess, thus increasing the risk of stripping.
Installing in Soft Materials: Installing screws in soft materials can make them susceptible to stripping. The screws will encounter less resistance when driven into soft materials. While this makes them easier to install, it also places them at risk for stripping.

Q: How do you measure screws?

A: To measure the diameter of a screw, measure the distance between the outer sides of the threads.
To measure the length of the screw, start from just underneath the head to the tip of the screw. If you want to measure the thread length, simply measure the start and end point of the threads – this will be different to the screw length if the screw isn't fully threaded.

Q: What are screws made of?

A: Screws are made of different materials, including stainless steel, zinc or brass. Stainless steel screws are commonly used outside because they're strong and corrosion resistant, whilst brass screws are softer and better suited for indoor projects.

Q: what is Chipboard Screw?

A: A chipboard screw is a self-tapping screw with a coarse thread that's used for woodworking. They're also known as particleboard screws, twinfast screws, or MDF screws.
Chipboard screws are designed to grip composite substances like chipboard, which is made of resin, wood dust, or wood chips. They have a countersunk head to keep the screw level with the material, a thin shaft to prevent splitting, and a coarse thread for a larger gripping force. Chipboard screws are available in lengths from 12mm to 200mm.
Chipboard screws are mainly used for connection and fastening between wooden plates and thin steel plates. They can be used in woodworking, such as furniture assembly and flooring.

Q: what is Concrete Screw?

A: Concrete screws, also known as concrete anchors, concrete bolts, or concrete screw anchors, are fasteners that attach items to concrete, masonry, or brick surfaces. They are strong and durable, and are often used in heavy-duty applications.
Concrete screws are designed to provide a strong and secure hold, and to be quickly and efficiently installed. They are screwed into pre-drilled holes, and the saw-tooth threads cut into the concrete and form the mechanical interlock between the screw and the base material.

Q: How do concrete screws work?

A: Concrete screws are held in place by mechanical interlock. As they are screwed into pre-drilled holes, the saw-tooth threads cut into the concrete and form the mechanical interlock between the screw and the base material. Once installed, they can be adjusted if required.

Q: What are the processing methods of Screws?

A: Cold heading and machining are two standard fabrication methods for screws and fasteners.
Cold Heading: Also known as cold forging, this process shapes metal wire using dies, high-speed punches, and hammers (instead of heat). Once a blank screw is cold-headed, it goes into a machine to cut threads into the screw shaft. This works either by rolling two grooved dies onto the blank screw or using a die-cutting machine to roll the threads around the shaft.
Machining: An automated process that uses sharp edge-cutting tools, machining chips away at screw blanks in until it creates the desired shape and specifications. Precision CNC Machining is best for tiny screws or unique custom designs.

Q: What are the surface treatment methods for Screws?

A: Finishes applied to the base metal of the screw enhance the durability and corrosion resistance of the material.
Black oxide finishes do not enlarge the dimensions of the screw and is a processed black rust. It is mostly used for aesthetic purposes.
Chrome coating is a bright, reflective finish that is decorative and very durable. It is applied via electropating.
Zinc plated coatings act as a sacrificial anode, protecting the underlying metal. It is applied as a fine white dust.
Other coatings like galvanization and phosphating are common for particular types of hardware, like screws meant for fence or window applications.

Q: How to Identify Screw?

A: The parts on screws can be identified rather easily. The head is the section of the screw with the largest diameter and the imprint of a screw drive. This also provides a load surface once in use. The shank of the screw contains the threaded section (shoulder screws being an exception) and is responsible for the alignment of the workpieces and screw. Finally, the end of the screw that does not have the head is known as a chamfer. This tapered end allows the screw to be inserted into pieces with less resistance than the screw's full diameter. Even on machine screws, there will be a beveled edge to assist penetration.

As one of the leading screws manufacturers and suppliers in China, we warmly welcome you to buy screws for sale here and get free sample from our factory. All customized products are with high quality and low price.

Stainless Steel Chipboard Screw with Phillips Or Torx Drive, Insulator Stud Set, Painted Head Hex Washer Head Self Drilling Screw and Tapping Screws