Sanwei:Your Professional Flat Washer Manufacturer!
Hebei Sanwei Fasteners Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and sale of fasteners, located in Hebei Province, China. Since its establishment,wei has been committed to providing customers with high-quality, high-performance fastener solutions, which are widely used in various fields such as construction, machinery manufacturing, automobile, and power communication.
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![Stainless Steel Flat Washers]()
Stainless Steel Flat WashersName:flat washerMaterial:Stainless steel 304, stainless steel 316Packing:PE+Cardboard Box+Pallet -
![Stainless Steel Flat Washer]()
Stainless Steel Flat WasherName:flat washer. Material:Stainless steel 304, stainless steel 316. Packing:PE+Cardboard Box+Pallet. -
![Flat Washers]()
Flat WashersStandard: DIN125. Name: Flat Washers. Material: carbon steel and alloy steel, etc.. Grade: Grade 4.8, Grade 5.8, Grade 8.8 -
![Thick Flat Washers]()
Thick Flat WashersStandard: DIN7349. Name: Thick flat washers. Material: carbon steel and alloy steel, etc.. Grade: Grade 4.8, 5.8, 8.8 -
![Black Flat Washers]()
Black Flat WashersStandard: DIN125. Name: Black Flat Washers. Material: carbon steel and alloy steel, etc.. Grade: Grade 4.8, 5.8, 8.8 -
![Flat Washer Types]()
Flat Washer TypesFlat washers mainly include ordinary flat washers, elastic flat washers, spline flat washers, cushion flat washers and so on. Different types of flat washers play different roles in various -
![Hardened Flat Washers]()
Hardened Flat WashersStandard: DIN125. Name: Hardened flat washers. Material: carbon steel and alloy steel, etc.. Grade: Grade 8.8, 10.9
Why Choose Us
OEM/ODM Service
Our customised fasteners are made to your special requirements. It can be fully threaded or partially threaded, and the thread, driving method, material, length, head shape, plating and all these can be specially designed according to your needs.
Good CNC machining technology
From material selection to finished products, Handan Sanwei provides you with comprehensive solutions when it comes to customised fasteners. The fasteners we make are high precision and strong. No matter what kind of precision you need, we can meet it and guarantee your satisfaction.
Strong engineering design team
Our company has an excellent and professional engineering team, and a number of technicians are elites in the industry. The staff always strives to explore new methods and technologies. From the selection of metals and special alloy materials to the finished fasteners, we can solve all aspects of the whole project engineering.
Professional Testing Laboratory
Quality assurance and testing is an important part of producing fasteners. Handan Sanwei has a specialised quality testing laboratory with spectrometers, hardness testers, tensile testers, salt spray test chambers and other equipment, where raw materials and final products are strictly tested. In addition, the company also has experienced testing experts who use professional methods to comprehensively test the fasteners and finally give you a detailed test report.
Digital Quality Control System
We rely on our self-developed full-process digital quality inspection system to strictly control every step from raw materials entering the factory to finished products being shipped. This system will always monitor the quality of the products to ensure that each batch of products meets the industry standards and complies with customer requirements. In addition, it collects and feeds back data in real time, giving you a clear understanding of product quality.
Enhanced Stability:
By evenly distributing the load, flat washers increase the stability and reliability of connections, preventing material damage and ensuring a longer lifespan for the fastened components.
Consistent Clamping Force:
Flat washers ensure that the clamping force is uniformly applied, reducing the risk of over-tightening and promoting connection integrity.
Load Distribution:
Flat washers are excellent at distributing the load of a fastener evenly across the surface. This prevents damage to softer materials and ensures a secure connection, which is vital for maintaining the structural integrity of the assembly.
Material Protection:
By acting as a buffer, flat washers protect the surface from deformation or damage caused by pressure and over-tightening, thus preserving the workpiece’s integrity and appearance.
Versatility:
Available in a variety of materials such as metals and plastics, flat washers are adaptable to numerous applications across different industries, making them a versatile choice for many projects.
Specification
|
Standard |
DIN125 |
|
Name |
Flat Washers |
|
Material |
Carbon steel and alloy steel, etc. |
|
Grade |
Grade 4.8, Grade 5.8, Grade 8.8 |
|
Nominal Diameter |
M2-M48 |
|
Surface treatment |
ZP,YZ,BLACK |
Application of Flat Washer
Automotive Industry
Flat washers are essential in the automotive industry, ensuring the reliability and durability of components under dynamic forces. They play a vital role in various applications:
Engine Assembly: In engine assembly, flat washers secure bolts and nuts, keeping them tightly fastened despite vibrations and thermal expansions.
Body Panels: Flat washers prevent fasteners from pulling through thin metal sheets, maintaining the structural integrity of the vehicle.
Suspension Systems: In suspension systems, flat washers distribute the load evenly, ensuring long-lasting performance despite constant movement and stress.
Construction
Flat washers are crucial in construction, providing load distribution and preventing damage to structural elements, thereby contributing to the safety and stability of buildings and bridges:
Structural Bolting: Flat washers distribute the load of bolts, preventing damage to structural elements and ensuring secure connections.
Concrete Anchoring: In concrete anchoring, flat washers distribute the load, reducing the risk of cracks. This ensures a stable foundation.
Metal Framing: In metal framing, flat washers prevent fasteners from damaging metal surfaces, maintaining the structural integrity of the framework.
Household Appliances
Flat washers are common in household appliances, securing internal components and preventing leaks:
Washing Machines: In washing machines, flat washers secure components like the drum and motor, ensuring they stay in place despite vibrations.
Dishwashers: In dishwashers, flat washers provide a tight seal around fasteners, preventing water leaks and ensuring efficient operation.
Dryers: In dryers, flat washers secure internal components and reduce noise by dampening vibrations.
Furniture Assembly
Flat washers enhance the durability of furniture joints by distributing load evenly and preventing material damage:
Flat-Pack Furniture: In flat-pack furniture, flat washers ensure fasteners do not pull through the material, providing a secure assembly.
Wooden Furniture: When assembling wooden furniture, flat washers prevent fasteners from damaging the wood, reducing the risk of splits and cracks.
Metal Furniture: In metal furniture, flat washers distribute the load of fasteners, preventing deformation and ensuring a tight fit.
Electronics
In electronics, flat washers provide insulation and protect delicate components from mechanical stress:
PCB Assembly: In PCB assembly, flat washers secure boards without damaging components, ensuring reliable connections.
Component Mounting: Flat washers provide a stable base for mounting electronic components, preventing movement and ensuring performance.
Heat Dissipation: In heat dissipation applications, flat washers ensure a secure thermal connection with heat sinks.
Plumbing and Sheet Metal
Flat washers are essential in plumbing and sheet metal work, providing secure seals and distributing load evenly:
Pipe Fittings: In plumbing, flat washers create tight seals around pipe fittings, preventing leaks and ensuring secure connections.
Sheet Metal Fastening: In sheet metal work, flat washers distribute load, preventing fasteners from pulling through thin sheets and ensuring stable attachment.
Gasket Sealing: Flat washers enhance gasket sealing, providing extra protection against leaks.
DIY Projects
Flat washers are invaluable in DIY projects, offering versatile and reliable fastening solutions:
Home Repairs: In home repairs, flat washers secure fixtures and fittings, keeping them firmly in place and preventing material damage.
Furniture Repairs: For repairing furniture, flat washers secure loose joints and prevent further damage.
Craft Projects: In craft projects, flat washers provide a stable base for fasteners, ensuring components remain securely attached and enhancing durability.
Proper Installation Techniques for Flat Washers
Placement
Flat washers are usually placed on the bolt’s shaft, just below the head or nut. This positioning helps absorb the compression forces exerted by the bolt or nut, distributing the load more evenly across the surface of the workpiece. This prevents damage to the material, especially in softer materials like wood or plastic.
Orientation
For best results, place the burred side of the washer facing down towards the workpiece. This prevents marking the surface during tightening. In some cases, placing the rounded side down can help protect delicate surfaces.
In addition, it is important to ensure that the flat washer is the correct size for the fastener being used. Using a washer that is too small may not provide adequate support, while using a washer that is too large may not fit properly and could cause damage to the material being fastened.
When tightening the fastener, care should be taken to ensure that the washer is not over-tightened or under-tightened. Over-tightening can cause the washer to deform or crack, while under-tightening can result in a loose connection that may not provide adequate support.
Packaging and Shipping
FAQ
We're professional flat washer manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized flat washer made in China here from our factory. Contact us for quotation.
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