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High-Quality A2-70 A4-80 Stainless Steel Hex Nuts for Sale


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Product Highlights

Wide Material Selection: Available in Stainless Steel, Carbon Steel, Alloy Steel, Copper, Brass, and Aluminum.
Corrosion Resistance: Rust-proof and vibration resistant, ideal for chemical industry and marine environments.
Customizable Options: Custom colors (Black, Blue, Yellow), surface treatments, and specific product usages available.
OEM/ODM Service: Professional R&D team supports customized product design and special orders.
Fast Delivery: Standard parts ship within 7 days; non-standard parts take 15-45 days.
High Strength Grade: Grade 8.8 standard with DIN compliance for reliable mechanical fastening.

Product Attributes

Customization: Available
Material: Stainless Steel
Type: Hexagon Head
Connection: Common Bolt
Head Style: Hexagonal
Standard: DIN
Grade: A2 A4
Color: Original
Products Usages: Wind Power Equipments/Wheel/Auto Parts/Trucks
Surface Treatment: Polishing
Customized: Available
Main Material: Stainless Steel, Brass, Aluminum
Package: Carton+Pallet
Service: OEM/ODM
Shipping Term: 10-45 Days
Transport Package: Srandard Packing
Specification: M3-M52
Trademark: no
Origin: Dainan
Production Capacity: 1000000 PCS/Week
Package Size: 50.00cm * 45.00cm * 30.00cm
Package Gross Weight: 30.000kg

Rust Proof Nut Vibration Resistant Nut High-Quality A2-70 A4-80 Stainless Steel Hex Nuts for Sale

Product Description

Product Introduction:

Nuts, as one of the most basic mechanical fasteners, are used in conjunction with bolts and screws to connect two or more parts together through the locking force of their threads. They come in a wide variety of types, selected according to the requirements of strength, anti-loosening properties, corrosion resistance, and assembly efficiency under different working conditions.

Stainless steel nuts are mainly made of austenitic stainless steel (such as 304, 316) and martensitic stainless steel (such as 410). 304 (A2): General purpose, good resistance to atmospheric corrosion. 316 (A4): Contains molybdenum, providing stronger resistance to chemical corrosion (especially chloride ions), suitable for marine and chemical environments. Advantages include excellent corrosion resistance and aesthetics, but the cost is higher than carbon steel. The 304/316 series has relatively low hardness, so care must be taken to prevent loosening. Mainly used in food machinery, medical devices, chemical equipment, shipbuilding, outdoor decoration, and other applications requiring high hygiene and rust prevention.

Brass nuts, a copper-zinc alloy, commonly available in grades such as H62 and H65. They are characterized by good corrosion resistance, excellent electrical and thermal conductivity, non-magnetic properties, an attractive appearance (gold color), and low spark generation. They are frequently used in electrical terminals, conductive connections, water pipe valves, marine equipment, and applications requiring explosion-proof (spark-free) applications.

Aluminum alloy nuts, such as those made of 6061 and 7075 aluminum alloys. This material is extremely lightweight, possesses a certain strength, and is resistant to atmospheric corrosion, but has relatively low hardness and shear strength. They are used in aerospace, racing, outdoor equipment, and lightweight structures—fields where weight is critical.

Main Products

Application Scenarios

Xinghua Ruibang Stainless Steel Standard Parts Co., Ltd., established on June 16, 2016, is located in Dainan Town, Xinghua City, Jiangsu Province, China, known as the "Hometown of Stainless Steel." It is a professional manufacturer of standard and non-standard stainless steel fasteners, primarily using 201, 304, 316, 304L, 316LB8, B8M, duplex stainless steel, and other special materials.

Business scope includes the production, processing, and sales of stainless steel standard parts and fasteners, as well as the sales of stainless steel products and other metal products and materials. Annual output value is US$10 million, with 12 production lines (10 for threaded rods, 3 for screws, and 2 for nuts) and over 50 employees.

Product applications cover many important industries including home decoration, construction, automotive manufacturing, aerospace, and electronic equipment manufacturing.

Our main products include bolts, nuts, screws, washers, threaded rods, and other non-standard products.

Certifications

Packaging & Shipping

FAQ

1. Q: What is the delivery time?

A: We have excellent production capacity. For standard parts, we can ship within 7 days after you place your order. For non-standard parts, depending on the product, it takes 15-45 days to ship.

2. Q: Are you a trading company or a manufacturer?

A: We are a factory.

3. Q: Do you accept special orders (custom orders)?

A: Yes, customers need to provide detailed information such as size, quantity, and material.

4. Q: Do you provide samples? Are samples free or do they require an additional fee?

A: Yes, we can provide some samples free of charge, but the shipping cost is your responsibility. If you need a large quantity of samples, we will charge an additional fee.

5. Q: What are your payment terms?

A: 30% as deposit, 70% before shipment.

6. Q: Can I become your distributor in my country?

A: Of course, please contact us immediately for more details.

7. Q: Can you produce custom parts?

A: Yes, we have a professional R&D team that can support customized product design.