Grades 8 Hex Nuts
According to provisions of the national standard GB/T 3098.2-2015 "Mechanical Properties of Fasteners Nuts", bolts made of carbon steel and alloy steel have 7 types of mechanical properties under the condition of environmental dimension of 10℃~35℃. They are 04, 05, 5, 6, 8, 10, 12 respectively.
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Product Introduction
Introducing Grades 8 Hex Nuts: The Ultimate Solution for Your Fastening Needs!
If you're looking for a reliable and durable fastening solution for your projects, Grades 8 Hex Nuts are an ideal choice. These nuts are manufactured to the highest standards, ensuring that they provide maximum strength and excellent resistance to wear and tear. In this product introduction, we will explore the various aspects of Grades 8 Hex Nuts that make them an ideal choice for merchants looking for high-quality fasteners.
Material
Grades 8 Hex Nuts are made from high-quality materials, which are carefully selected to ensure they meet the required standards. We use the best raw materials available, ensuring that our products have the strength and durability required for use in a variety of applications.
Structural Integrity
These nuts are engineered to provide maximum structural integrity, ensuring that they provide the required level of strength and support. They are designed to withstand extreme pressure, making them an ideal choice for use in heavy-duty applications that require a secure fastening solution.
Corrosion Resistance
Corrosion is a major issue that can affect the performance of fasteners over time. Therefore, Grades 8 Hex Nuts are made with materials that are highly resistant to corrosion, ensuring that they have a long life span and retain their strength even in harsh environments.
Tensile Strength
One of the key features that makes Grades 8 Hex Nuts stand out is their exceptional tensile strength. They are designed to withstand high levels of tension and pressure, making them suitable for use in critical applications. Whether you're looking for a fastening solution for construction, automotive or industrial applications, Grades 8 Hex Nuts are designed to deliver the required level of strength and durability.
Size and Shape
Grades 8 Hex Nuts come in a range of sizes, making them suitable for use in a variety of applications. The hexagonal shape of these nuts ensures that they can be easily tightened and loosened with standard tools, making them a convenient choice for a wide range of applications.
Quality Assurance
Our company takes quality assurance seriously, and we ensure that all Grades 8 Hex Nuts undergo rigorous testing before they are shipped to our customers. We conduct tests that verify the materials quality, structural integrity, and corrosion resistance of our products, and we ensure that they meet or exceed the required standards.
Applications
Grades 8 Hex Nuts are ideal for use in a range of applications, including construction, automotive, and industrial environments. They can be used to secure bolts, screws, and other fasteners, ensuring that they provide the required level of strength and support.
Conclusion
Grades 8 Hex Nuts are designed to deliver the highest level of quality, strength, and durability, making them an ideal choice for merchants looking for a reliable, long-lasting fastening solution. Their exceptional performance, corrosion resistance, and structural integrity make them ideal for use in a range of applications, and their availability in different sizes makes them a convenient choice. Additionally, our company's commitment to quality assurance ensures that our customers receive only the highest quality products. Contact us today to learn more about Grades 8 Hex Nuts or to place your order.
According to provisions of the national standard GB/T 3098.2-2015 "Mechanical Properties of Fasteners Nuts", bolts made of carbon steel and alloy steel have 7 types of mechanical properties under the condition of environmental dimension of 10℃~35℃. They are 04, 05, 5, 6, 8, 10, 12 respectively.
According to the provisions of the national standard GB/T 3098.15-2014 "Mechanical Properties of Fasteners - Stainless Steel Nuts", under the condition of environmental dimension of 10℃~35℃, the performance grades of nuts made of stainless steel are specified as follows:
Nuts made of austenitic stainless steels (including A1, A2, A3, A4, A5 groups) have mechanical property classes 50, 70, 80 and 025, 035, 040. (Note: The mechanical property grade marking of stainless steel nuts consists of two parts, the first part marks the steel group, and the second part marks the performance grade, separated by dashes, such as A2-70, the same below)
Nuts made of C1 group martensitic stainless steel have mechanical properties grades 50, 70, 110 and 025, 035, 055;
Nuts made of C3 group martensitic stainless steel have mechanical properties of 80 and 040;
Nuts made of martensitic stainless steel of group C4 have mechanical properties grades 50, 70 and 025, 035.
Nuts made of F1 group ferritic stainless steels have mechanical property classes 45, 60 and 020, 030.
According to the national standard GB/T 3098.10-1993 "Mechanical properties of fasteners - Bolts, screws, studs and nuts made of non-ferrous metals":
Nuts made of copper and copper alloys have mechanical properties: CU1, CU2, CU3, CU4, CU5, CU6, CU7;
Nuts made of aluminum and aluminum alloys have mechanical performance grades: AL1, AL2, AL3, AL4, AL5, AL6.
The national standard GB/T 41-2016 "Type 1 Hexagon Nut Class C" is suitable for Class C Hexagon Nuts with thread specifications M5~M64 and performance class 5
The national standard GB/T 6170-2015 "Type 1 Hexagon Nut" is suitable for thread specifications M1.6~M64, and the performance grades are 6, 8, 10, A2-70, A4-70, A2-50, A4-50, CU2 , CU3 and AL4 grade A and B hex nuts.
The national standard GB/T 6175-2016 "Type 2 Hexagon Nuts" is suitable for A and B hexagon head bolts with thread specifications M5~M36 and performance grades 10 and 12.
The national standard GB/T 6172.1-2016 "Hexagonal Thin Nuts" is suitable for thread specifications M1.6~M64, and the performance levels are 04, 05, A2-025, A2-035, A2-50, A4-035, CU2, CU3 and Grade A and B hex thin nuts for AL4.
Production Process of Grades 8 Hex Nuts

Specification of Grades 8 Hex Nuts

d | M1 | M1.2 | M1.4 | M1.6 | (M1.7) | M2 | (M2.3) | M2.5 | (M2.6) | M3 | (M3.5) | |
P | UNC | 0.25 | 0.25 | 0.3 | 0.35 | 0.35 | 0.4 | 0.45 | 0.45 | 0.45 | 0.5 | 0.6 |
UNF | / | / | / | / | / | / | / | / | / | / | / | |
UNF | / | / | / | / | / | / | / | / | / | / | / | |
m | max | 0.8 | 1 | 1.2 | 1.3 | 1.4 | 1.6 | 1.8 | 2 | 2 | 2.4 | 2.8 |
min | 0.55 | 0.75 | 0.95 | 1.05 | 1.15 | 1.35 | 1.55 | 1.75 | 1.75 | 2.15 | 2.55 | |
mw | min | 0.44 | 0.6 | 0.76 | 0.84 | 0.92 | 1.08 | 1.24 | 1.4 | 1.4 | 1.72 | 2.04 |
s | max | 2.5 | 3 | 3 | 3.2 | 3.5 | 4 | 4.5 | 5 | 5 | 5.5 | 6 |
min | 2.4 | 2.9 | 2.9 | 3.02 | 3.38 | 3.82 | 4.32 | 4.82 | 4.82 | 5.32 | 5.82 | |
e ① | min | 2.71 | 3.28 | 3.28 | 3.41 | 3.82 | 4.32 | 4.88 | 5.45 | 5.45 | 6.01 | 6.58 |
* | - | - | - | - | - | - | - | - | - | - | - | |
KGS/1000PCS | 0.03 | 0.054 | 0.063 | 0.076 | 0.1 | 0.142 | 0.2 | 0.28 | 0.72 | 0.384 | 0.514 | |
d | M4 | M5 | M6 | (M7) | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | |
P | UNC | 0.7 | 0.8 | 1 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 |
UNF | / | / | / | / | 1 | 1 | 1.5 | 1.5 | 1.5 | 1.5 | 2 | |
UNF | / | / | / | / | / | 1.25 | 1.25 | / | / | 2 | 1.5 | |
m | max | 3.2 | 4 | 5 | 5.5 | 6.5 | 8 | 10 | 11 | 13 | 15 | 16 |
min | 2.9 | 3.7 | 4.7 | 5.2 | 6.14 | 7.64 | 9.64 | 10.3 | 12.3 | 14.3 | 14.9 | |
mw | min | 2.32 | 2.96 | 3.76 | 4.16 | 4.91 | 6.11 | 7.71 | 8.24 | 9.84 | 11.44 | 11.92 |
s | max | 7 | 8 | 10 | 11 | 13 | 17 | 19 | 22 | 24 | 27 | 30 |
min | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | 16.73 | 18.67 | 21.67 | 23.67 | 26.16 | 29.16 | |
e ① | min | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 | 18.9 | 21.1 | 24.49 | 26.75 | 29.56 | 32.95 |
* | - | - | - | - | - | - | - | - | - | - | - | |
KGS/1000PCS | 0.81 | 1.23 | 2.5 | 3.12 | 5.2 | 11.6 | 17.3 | 25 | 33.3 | 49.4 | 64.4 | |
d | (M22) | M24 | (M27) | M30 | (M33) | M36 | (M39) | M42 | (M45) | M48 | (M52) | |
P | UNC | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 | 5 |
UNF | 1.5 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | |
UNF | 2 | / | / | / | / | / | / | / | / | / | / | |
m | max | 18 | 19 | 22 | 24 | 26 | 29 | 31 | 34 | 36 | 38 | 42 |
min | 16.9 | 17.7 | 20.7 | 22.7 | 24.7 | 27.4 | 29.4 | 32.4 | 34.4 | 36.4 | 40.4 | |
mw | min | 13.52 | 14.16 | 16.56 | 18.16 | 19.76 | 21.92 | 23.52 | 25.9 | 27.5 | 29.1 | 32.3 |
s | max | 32 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 |
min | 31 | 35 | 40 | 45 | 49 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 | 78.1 | |
e ① | min | 35.03 | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 71.3 | 76.95 | 82.6 | 88.25 |
* | - | - | - | - | - | - | - | - | - | - | - | |
KGS/1000PCS | 79 | 110 | 165 | 223 | 288 | 393 | 502 | 652 | 800 | 977 | 1220 | |
d | M56 | (M60) | M64 | (M68) | M72 | (M76) | M80 | (M85) | M90 | M100 | |
P | UNC | 5.5 | 5.5 | 6 | 6 | / | / | / | / | / | / |
UNF | 4 | 4 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | |
UNF | / | / | / | / | 4 | 4 | 4 | 4 | 4 | 4 | |
m | max | 45 | 48 | 51 | 54 | 58 | 61 | 64 | 68 | 72 | 80 |
min | 43.4 | 46.4 | 49.1 | 52.1 | 56.1 | 59.1 | 62.1 | 66.1 | 70.1 | 78.1 | |
mw | min | 34.7 | 37.1 | 39.3 | 41.7 | 44.9 | 47.3 | 49.7 | 52.9 | 56.1 | 62.5 |
s | max | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 130 | 145 |
min | 82.8 | 87.8 | 92.8 | 97.8 | 102.8 | 107.8 | 112.8 | 117.8 | 127.5 | 142.5 | |
e ① | min | 93.56 | 99.21 | 104.86 | 110.51 | 116.16 | 121.81 | 127.46 | 133.11 | 144.08 | 161.02 |
* | - | - | - | - | - | - | - | - | - | - | |
KGS/1000PCS | 1420 | 1690 | 1980 | 2300 | 2670 | 3040 | 3440 | 3930 | 4930 | 6820 | |
d | M110 | M125 | M140 | M160 | |
P | UNC | / | / | / | / |
UNF | 6 | 6 | 6 | 6 | |
UNF | 4 | 4 | / | / | |
m | max | 88 | 100 | 112 | 128 |
min | 85.8 | 97.8 | 109.8 | 125.5 | |
mw | min | 68.6 | 78.2 | 87.8 | 100 |
s | max | 155 | 180 | 200 | 230 |
min | 152.5 | 177.5 | 195.4 | 225.4 | |
e ① | min | 172.32 | 200.57 | 220.8 | 254.7 |
* | 170 | 196 | 216 | 248 | |
KGS/1000PCS | 8200 | 13000 | 17500 | 26500 | |
Common Grade and Coating
Standard | Material | Grade | Finish | Thread |
DIN933 | carbon steel | 4.6 | Plain | UNC |
Zinc plated | ||||
Alloy steel | Yellow zinc plated | |||
PTFE | ||||
Stainless steel | Black Oxide | UNF | ||
Dacromet | ||||
Other | HDG | |||
Other |
Application Area of Grades 8 Hex Nuts
The application range of the products produced by our company is very wide. For example, hex nuts are used in the fields of petrochemical industry, automobile manufacturing, construction, pressure piping, rail transit, steel structure engineering, large-scale power generation machinery facilities and infrastructure. Of course, in some specific positions in these areas, some other products will also be used, such as oval neck rail bolts, hex flange nuts, U-bolts, flat head hexagon bolts, T-bolts and round head hex socket bolts etc.

How to Buy Grades 8 Hex Nuts from Us?
Inquiry
There are two types of fasteners. One is standard parts, such as DIN934, grade 8 hex nuts. The other is non-standard parts. If you want standard pieces, you can tell the standard, size, grade (material), coating and quantity. For example, you want to buy DIN934, M10, grade 8, galvanized and 20000pcs. If you want non-standard parts, you can show us samples, drawings or detailed instructions. Then our engineers will make technical drawings for you.
Price and payemnt
The price can be price/piece, or price/kg. We can quote EXW, FOB, CFR ,CIF with T/T, L/C, Western Union,etc. Or other ways agreed with customers.
Order
After checking, if the price and lead time are both ok, We will start to produce after advance payment according the requirements we promise.
Quality Insurance
We buy PICC PRODUCTS LIABILITY INSURANCE every year. We can agree in the contract that we will replace the goods or refund the money if there are some quality issues after you get our products. If quality problems happen after use, we will track the goods to deal the problems. And our insurance policy can cover your lost.
FAQ
Q1: Are you a factory or trading company?
A: We are manufacturer of hex bolts and nut for more than 20 years . We have two factories, one in Shanghai and the other in Jiangsu. Our production capacity can be 20000 + tons per year. We can customize our products according to customers' requirements, drawings and samples.
Q2: How many years you do foreign trade?
A: We have more than 20 years experience in exporting products to worldwide countries with our best quality. Now we have exported more than 40 countries, such as Spain, Germany, Italy, Belgium, United Kingdom, Lithuania, USA, Canada, Australia, Singapore,Japan, Thailand, Malaysia, South Korea,Indonesia, Egypt, Philippines and so on.
Q3: Do you have enough outputs?
A: We have enough stock in warehouses with abundant capital. We offer 24-hour services. For most common standards, we have them on stock, such as hex bolts, hex nuts, etc.
Q4: How to ensure that every process's quality?
A: First, we have technical drawings for each product when producing.
Second, our workers most have more than 10-years experience of doing hex bolts.
Third, our QC people will do inspection every 2 hours. If finding the bad parts, they will stop the porduction immediately.
Then,the finished parts will be checked again before shipment which insures every product's quality.
Q5: How to ensure the safety of long-distance transportation?
A: We pack into cartons first, and then pack cartons on pallets. The pallet is very easy to lift by Forklift wihch will protect the cartons from damage. Professional packing teams which keep every packing safely.
Q6: What products can you customize?
A:One is standard parts, such as DIN933, hex bolts. The other is Non-standard parts. If you want standard parts, you can tell the standard, size, grade(material) ,coating and quantity. For example, you want to buy DIN933, M12X60,grade 8.8, zinc plated and 20000pcs.
If you want non-standard parts, you can show us samples, drawings or detail descriptions. Then our engineer will do the technical drawings for you.
There are many, such as hexagon bolts, flange bolts, round head square neck bolts, as well as track bolts, U-bolts, T-bolts, flat head hexagon bolts, hex nuts, hex flange nuts .
Q7: Can you provide some sample?
A: Samples can be provided as your requirements.
Why choose us?
- We provide customized Hex Nut products that cater to the specific needs of each client.
- In the spirit of infinite persistence, we are using experience and industry changes every day to improve our design, manufacturing and production capabilities.
- Our company offers competitive pricing for customized Hex Nut products.
- Our R&D team always adheres to the concept and principle of "personalized" design to ensure high quality products to meet the core needs of our customers.
- We offer fast and reliable shipping of Hex Nut products worldwide.
- In order to carry out our goal of 'customer first and mutual benefit' in the cooperation, we establish a professional engineering team and a sales team to supply the best service to satisfy our customers' requirements.
- Our company follows strict quality control measures to ensure the best Hex Nut products are produced.
- Our Grades 8 Hex Nuts not only meet the needs of customers, but also provide value-added services.
- We provide comprehensive technical support to ensure that clients can use our Hex Nut products with ease.
- In the major industries and their markets, we continue to improve our competitive strengths in technology, quality, brand, and service through continuous innovation, giving full play to our strengths and relying on them to win customers and respect.
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