Jiaxing City Qunbang Hardware Co., Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 200TON/MONTH |
| Delivery Time | 30-60 days |
| Packaging Details | 25kg Carton+900kg/Pallet |
| Standard | DIN557 |
| Size | 1/2 to 1-1/2 |
| Surface treatment | H.D.G ZP YZP BLACK |
| Grade | 6 8 |
| Sample | Free samples |
| Process | Cold Forging,Hot Forging |
| Packing | 25kg Carton+900kg/Pallet |
| Material | Carbon steel |
| Brand Name | QBH |
| Model Number | square nut |
| Certification | ISO9001 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 200TON/MONTH |
| Delivery Time | 30-60 days | Packaging Details | 25kg Carton+900kg/Pallet |
| Standard | DIN557 | Size | 1/2 to 1-1/2 |
| Surface treatment | H.D.G ZP YZP BLACK | Grade | 6 8 |
| Sample | Free samples | Process | Cold Forging,Hot Forging |
| Packing | 25kg Carton+900kg/Pallet | Material | Carbon steel |
| Brand Name | QBH | Model Number | square nut |
| Certification | ISO9001 | Place of Origin | CHINA |
| High Light | DIN 557 carbon steel nut ，Square carbon steel nut ，1/2 To 1-1/2 Size carbon steel nut | ||
ANSI Heavy Square GRADE 2 HDG BLACK ZP YZP Carbon Steel Nuts
Specification
Hardware ANSI Menu. American National and Unified Standard Square Nuts and Heavy Square Nuts and American National Standard Hex Thick Nuts ANSI/ASME B18.2.2. Flat Bottom, Chamfered Bottom Sqaure Nut
American National and Unified Standard Square Nuts and Heavy Square Nuts
And American National Standard Hex Thick Nuts ANSI/ASME B18.2.2
| Nominal Size | F | C | H | QBH NO | ||||||
| Width Across Flats | Width Across Corners | Thickness | ||||||||
| Basic | Max | Min | Max | Min | Basic | Max | Min | Plain | Galvanized | |
| 1⁄2 | 13⁄16 | 0.812 | 0.788 | 1.149 | 1.052 | 7⁄16 | 0.458 | 0.418 | SQUARE NUT | SQUARE NUT |
| 5⁄8 | 1 | 1.000 | 0.969 | 1.414 | 1.300 | 35⁄64 | 0.569 | 0.525 | SQUARE NUT | SQUARE NUT |
| 3⁄4 | 11⁄8 | 1.125 | 1.088 | 1.591 | 1.464 | 21⁄32 | 0.680 | 0.632 | SQUARE NUT | SQUARE NUT |
| 7⁄8 | 15⁄16 | 1.312 | 1.269 | 1.856 | 1.712 | 49⁄64 | 0.792 | 0.740 | SQUARE NUT | SQUARE NUT |
| 1 | 11⁄2 | 1.500 | 1.450 | 2.121 | 1.961 | 7⁄8 | 0.903 | 0.847 | SQUARE NUT | SQUARE NUT |
| 11⁄8 | 111⁄16 | 1.688 | 1.631 | 2.386 | 2.209 | 1 | 1.030 | 0.970 | SQUARE NUT | SQUARE NUT |
| 11⁄4 | 17⁄8 | 1.875 | 1.812 | 2.652 | 2.458 | 13⁄32 | 1.126 | 1.062 | SQUARE NUT | SQUARE NUT |
| 13⁄8 | 21⁄16 | 2.062 | 1.994 | 2.917 | 2.708 | 113⁄64 | 1.237 | 1.169 | SQUARE NUT | SQUARE NUT |
| 11⁄2 | 21⁄4 | 2.250 | 2.175 | 3.182 | 2.956 | 15⁄16 | 1.348 | 1.276 | SQUARE NUT | SQUARE NUT |
Process flow
Cold forging
Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ tapping ➨make heat treatment(if need) ➨ Finish ➨ Packing
Hot forging
Cutting material ➨ hot forging ➨ turning ➨ tapping ➨ make heat treatment(if need) ➨ Finish ➨ Packing
Product Grade
Grade 2 Grade 5 Grade 8
Materials and Chemical compstition
| J995 Chemical Requirements | ||||
| Grade | Carbon, % | Phosphorus, % | Manganese, % | Sulfur, % |
| 2 | 0.47 max | 0.120 max | - | 0.15 max |
| 5 | 0.55 max | 0.050 max | 0.30 min | 0.15 max |
| 8 | 0.55 max | 0.040 max | 0.30 min | 0.05 max |
1008
| CHEMICAL COMPOSI % | ||||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | Al |
| 0.06 | 0.06 | 0.33 | 0.013 | 0.003 | 0.01 | 0 | 0.01 | 0.028 |
1035
| CHEMICAL COMPOSI % | |||||||
| C | Si | Mn | P | S | Cr | Ni | Cu |
| 0.34 | 0.13 | 0.73 | 0.012 | 0.002 | 0.02 | 0.01 | 0.02 |
10B21
| CHEMICAL COMPOSI % | ||||||
| C | Si | Mn | P | S | Cr | B |
| 0.2 | 0.04 | 0.81 | 0.017 | 0.007 | 0.017 | 0.0021 |
1045
| CHEMICAL COMPOSI % | |||||||
| C | Si | Mn | P | S | Cr | Ni | Cu |
| 0.45 | 0.23 | 0.58 | 0.014 | 0.006 | 0.057 | 0.008 | 0.016 |
40CR
| CHEMICAL COMPOSI % | |||||||
| C | Si | Mn | P | S | Cr | Ni | Cu |
| 0.4 | 0.21 | 0.54 | 0.015 | 0.008 | 0.95 | 0.02 | 0.02 |
35CRMO
| CHEMICAL COMPOSI % | ||||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | Mo |
| 0.35 | 0.22 | 0.59 | 0.01 | 0.003 | 0.93 | 0.01 | 0.01 | 0.21 |
42CRMO
| CHEMICAL COMPOSI % | ||||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | Mo |
| 0.42 | 0.27 | 0.92 | 0.013 | 0.004 | 1.01 | 0.03 | 0.04 | 0.2 |
DIN557 Carbon Steel Square Nuts are Made with top-quality materials, these nuts are known for their durability, strength, and corrosion resistance. DIN557 Carbon Steel Square Nuts are designed to last. The high-quality steel construction provides excellent tensile strength, meaning they can handle high load capacities without deforming or breaking. Galvanized Carbon steel is also resistant to corrosion, so DIN557 Carbon Steel Square Nuts stand up well even in wet and humid environments.
One of the key advantages of DIN557 Carbon Steel Square Nuts is their unique square shape. Unlike traditional hexagonal nuts, the square shape provides a greater surface area for gripping and holding onto in applications where tools cannot reach. At the same time, the square shape is ideal for preventing rotation, reducing the likelihood of the nut coming loose even in vibrating or high-stress applications.
DIN557 Carbon Steel Square Nuts application scenarios are very wide, The product massively applies in the bridgeroadthe petroleum pipeline facilitythe wind power generation and steel structure project.
Company Details
Business Type:
Manufacturer,Trading Company,Seller
Year Established:
2014
Total Annual:
3000-4500
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Jiaxing City Qunbang Hardware Co,ltd is a productiondesignsales and after-sales as one of the fasteners business,The company is located in HangjiaHu Plain,close to ShanghaiNingboZhapu ports.The geographical position is superior,the transportation is convenient,has created the nat... Jiaxing City Qunbang Hardware Co,ltd is a productiondesignsales and after-sales as one of the fasteners business,The company is located in HangjiaHu Plain,close to ShanghaiNingboZhapu ports.The geographical position is superior,the transportation is convenient,has created the nat...
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