Sanwei:Your Professional Nut Shape 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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Butterfly Nut M8 Wing NutsStandard: DIN315 . Name:Butterfly Nut Wing Nuts. Material: Carbon Steel,304,306 stainless steel. Grade:Din .
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M6 Zinc Plated Hex NutsStandard: DIN985. Name: Hex nut. Material: Carbon Steel,304,306 stainless steel. Grade:Din .
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Hex Lock NutStandard: DIN985. Name: Hex lock nut. Material: 304 stainless steel. Grade:A2-70.
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Hexagon Anti-loosening Lock NutStandard: GB6184/DIN980. Name:Hexagon anti-loosening lock nut . Material: Stainless steel.
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Black Hex NutStandard: GB6170-86. Name: Black Hex Nut. Material: Carbon steel.
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High Strength Hexagon Nuts DIN934Standard: DIN 934. Name: Hexagon Nuts. Material: carbon steel,Stainless Steel and alloy steel,etc.. Grade: Grade 4.8, Grade 5.8, Grade 8.8,SS201,SS304,SS316
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Stainless Steel Hex NutStandard: DIN934. Name: Stainless steel hex nut. Material: carbon steel and alloy steel, etc.. Grade: 4.8 grade, 5.8 grade, 8.8 grade
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Hexagon Flanged Nuts DIN6923Standard: DIN 6923. Name: Hexagon Flanged Nuts. Material: carbon steel,Stainless Steel and alloy steel,etc.. Grade: Grade 4.8, Grade 5.8, Grade 8.8,SS201,SS304,SS316
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Square Weld Nut DIN928Standard: DIN 928. Name: Square Weld Nuts. Material: carbon steel,Stainless Steel and alloy steel,etc.. Grade: Grade 4.8, Grade 5.8, Grade 8.8,SS201,SS304,SS316
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Stainless Steel Hexagon Nuts DIN934Standard: DIN 934. Name: Stainless Steel Hexagon Nuts. Material:Stainless Steel. Grade:SS201 SS304 SS316 SS316L
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Hexagonal NutsStandard: DIN934. Name: Hexagonal nuts. Material: carbon steel and alloy steel, etc.. Grade: 4.8 grade, 5.8 grade, 8.8 grade
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Round NutsStandard: DIN981. Name: Round Nuts. Material: carbon steel and alloy steel, etc.. Grade: Grade 4.8, Grade 5.8, Grade 8.8
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.
Types of Nut Shape
The nut shape produced by our company mainly include the following types:
Hexagonal Nuts
Hex nuts are a widely used fastener that is notable for having six flat outer surfaces, and are typically used in conjunction with bolts or screws to connect and secure two or more parts to each other. Designed to facilitate tightening and loosening operations with the use of a wrench, hexagonal nuts provide a large contact area to ensure stability when applying torque. Hexagon nuts are categorized according to nominal thickness as Type I, Type II, and Thin Type, and those of Grade 8 and above are categorized as Type I and Type II.
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Standard |
DIN934 |
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Name |
Hexagonal nuts |
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Material |
Carbon steel and alloy steel, etc. |
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Grade |
4.8 grade, 5.8 grade, 8.8 grade |
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Nominal diameter |
M2-M48 |
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Pitch |
0.4-5 |
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Surface treatment |
ZP,YZ,BLACK |
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Alias |
Hexagon Nuts, High Strength Nuts |
Wing Nuts
The Wing Nut is a fastener designed for manual operation with easy-to-grip wing-like protrusions on both sides. This design allows the user to easily tighten or loosen the nut without the use of tools. The wings on both sides not only add stability and grip during tightening, but also make handling easier. Wing nuts are usually made of metal materials, such as steel or cast iron, ensuring their strength and durability. When using it you need to keep the bolt or screw perpendicular to the axis of the nut to keep the wings close together.
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Standard |
DIN315 |
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Name |
Wing Nuts |
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Material |
Carbon steel and alloy steel, etc. |
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Grade |
Grade 4.8, 5.8, 8.8 |
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Nominal Diameter |
M2-M48 |
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Pitch |
0.4-5 |
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Surface treatment |
ZP,YZ,BLACK |
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Alias |
Butterfly Nut |

Accessibility: The six-sided design of a hexagonal nut allows for easier access with a wrench or socket from multiple angles, making it more convenient to tighten or loosen compared to a square nut.
Torque Distribution: The six flat sides of a hexagonal nut provide better torque distribution, reducing the risk of rounding off the corners and allowing for more efficient application of force during tightening.
Space Efficiency: Hexagonal nuts are more space-efficient than square nuts, as they can be closely packed together in assemblies, making them ideal for applications where space is limited.
Standardization: Hexagonal nuts are more commonly standardized and readily available in a wide range of sizes and materials, making them a preferred choice for a variety of industrial and mechanical applications.
Versatile Usage: Several kinds of hexagonal nuts can be widely used across diverse industries and applications, ranging from construction to automobiles and more. Hexagonal nuts can be used in tandem with spanners and ratchets for tightening bolts. They are widely used throughout workshops, equipment, home projects, and more applications.
Tool-Free Operation: The most significant advantage of wing nuts is that they can be tightened or loosened by hand. This eliminates the need for wrenches, pliers, or other tools, making them ideal for quick adjustments or situations where tools are not readily available.
Speed and Convenience: Wing nuts are faster to install and remove compared to standard nuts. This makes them perfect for applications that require frequent assembly and disassembly, such as temporary structures, stage equipment, or furniture.
Accessibility: The wings provide a comfortable grip, even when wearing gloves, making them suitable for industrial or outdoor use. They are also easier to handle in tight spaces where tools might be difficult to maneuver.
Reusability: Wing nuts are designed for repeated use. As long as the wings remain intact, they can be reused multiple times without significant wear and tear.
Temporary Applications: Wing nuts are ideal for non-permanent setups, prototypes, or fixtures that require regular maintenance or adjustments. They are commonly used in DIY projects, camping gear, and exhibition stands.

Application of Hexagonal Nuts
Construction and Infrastructure
Hexagonal nuts are extensively used in construction for securing beams, columns, and structural components. Whether in high-rise buildings, bridges, or tunnels, they provide strong fastening solutions when used with high-tensile steel bolts.
Automotive Industry
In automobiles, hexagonal nuts are essential for securing engine components, suspension systems, and frames. Carbon steel and zinc-plated hexagonal nuts are commonly used due to their strength and corrosion resistance.
Machinery and Equipment Manufacturing
Heavy-duty machines, CNC equipment, and industrial machinery require hexagonal nut uses for securing moving and stationary parts. In high-stress applications, alloy steel and hardened stainless steel hexagonal nuts are preferred due to their ability to withstand vibration and mechanical stress.
Oil and Gas Industry
The oil and gas sector demands hexagonal nut uses that can endure extreme temperatures and harsh environments. Duplex and Super Duplex stainless steel hexagonal nuts offer excellent resistance to corrosion and high-pressure conditions, making them ideal for pipelines, refineries, and offshore drilling platforms.
Aerospace Applications
Aircraft structures, engines, and landing gear assemblies rely on lightweight yet high-strength hexagonal nuts. Titanium hexagonal nuts are widely used in the aerospace industry due to their superior strength-to-weight ratio and resistance to extreme temperatures and pressures.
Marine and Shipbuilding Industry
Saltwater exposure in marine environments necessitates the use of corrosion-resistant hexagonal nuts and naval brass hexagonal nuts. These nuts are used in shipbuilding, boat engines, and underwater piping systems to ensure long-lasting durability.
Railway and Transportation
Railway tracks, coaches, and signal structures use hexagonal nut uses to secure fastening points. Hot-dip galvanized hexagonal nuts are preferred for their ability to resist wear and corrosion over extended use in outdoor conditions.
Renewable Energy Sector
Wind turbines, solar panels, and hydroelectric plants use hexagonal nut uses in assembling support structures and mechanical components. Stainless steel and carbon steel hexagonal nuts are commonly used to ensure the longevity of these installations.
Home Improvement and DIY Projects
Hexagonal nuts play a crucial role in furniture assembly, home renovations, and DIY repairs. Standard mild steel or brass hexagonal nuts are widely available in hardware stores for household applications such as mounting shelves, assembling cabinets, and installing lighting fixtures.
Agriculture and Farm Equipment
Farm machinery, irrigation systems, and greenhouses depend on hexagonal nuts to secure bolts and rods in place. Zinc-plated and stainless steel hexagonal nuts are ideal for withstanding outdoor exposure and resisting rust from moisture and fertilizers.
Construction and Carpentry: Wing nuts are often used in construction and carpentry to secure temporary structures like scaffolding or to attach components that may require frequent adjustments.
Automotive Industry: Wing Nuts are used in automotive assembly and repair tasks, particularly in securing air filters, battery terminals, and other components that need to be easily accessible for maintenance.
Furniture Assembly: In DIY furniture assembly and manufacturing, wing nuts provide a hassle-free way to connect parts, making it easier to disassemble and transport furniture.
Marine and Boating: In maritime applications, wing nuts are valuable for securing equipment and hardware on boats and ships, as they resist corrosion when made from stainless steel.
Agriculture: Farmers and gardeners use wing nuts to assemble and adjust various farming equipment and machinery quickly.
Home Improvement: Wing nuts are a favourite among homeowners for tasks like attaching hose connectors, mounting light fixtures, and securing outdoor furniture.


HVAC Systems: Wing nuts are used to connect and secure ductwork in heating, ventilation, and air conditioning systems, facilitating easy maintenance and adjustments.
Outdoor and Camping Gear: Campers and outdoor enthusiasts rely on wing nuts to assemble and dismantle tents, camping stoves, and other equipment in the field.
Industrial Machinery: In manufacturing and industrial settings, wing nuts help in securing covers, guards, and panels that need regular access for maintenance or adjustments.
Medical Equipment: Some medical devices and hospital equipment use wing nuts to enable quick adjustments and easy component replacement.
Aerospace: In aviation and aerospace industries, wing nuts may find applications in non-critical areas, where tool-free access is essential for maintenance and inspections.
Stage and Event Production: Wing nuts are often used in assembling stage and event structures due to their quick and tool-free installation and removal.
Packaging and Shipping

FAQ
We're professional nut shape manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized nut shape made in China here from our factory. Contact us for quotation.
Stainless Steel Hex Nut, Square Nuts, Mountain Nuts

