Jiaxing City Qunbang Hardware Co., Ltd
| Payment Terms | L/C, T/T, D/P |
| Supply Ability | 600TON/MONTH |
| Delivery Time | 15DAYS |
| Packaging Details | 25kg Carton+900kg/Pallet |
| Standard | DIN912 DIN125A DIN127B |
| Size | M5-M16 |
| Grade | CL8.8 A2-70 A4-80 |
| Sample | Free Sample |
| Process | Cold Forging |
| Packing | BULK OR SMALL PACKING |
| Material | 304,316 |
| Brand Name | QBH |
| Model Number | DIN912 DIN125A DIN127B |
| Certification | ISO9001 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T, D/P | Supply Ability | 600TON/MONTH |
| Delivery Time | 15DAYS | Packaging Details | 25kg Carton+900kg/Pallet |
| Standard | DIN912 DIN125A DIN127B | Size | M5-M16 |
| Grade | CL8.8 A2-70 A4-80 | Sample | Free Sample |
| Process | Cold Forging | Packing | BULK OR SMALL PACKING |
| Material | 304,316 | Brand Name | QBH |
| Model Number | DIN912 DIN125A DIN127B | Certification | ISO9001 |
| Place of Origin | CHINA | ||
| High Light | SS 304 Solar Panel Fasteners ，DIN127B Solar Panel Fasteners ，M16 Hex Socket Head Cap Screw | ||
Carbon Steel 18-8 CL8.8 SS 304 316 Solar Panel Fasteners
The material is generally divided into carbon steel and stainless steel, which are mostly used for the connection between thin metal plates and play the role of connection. When connecting, first make a threaded bottom hole for the connected part, and then screw the combined screw into the threaded bottom hole of the connected part. Due to the high hardness of the thread surface of the combination screw, the internal thread can be tapped out in the bottom hole of the thread of the connected part to form the connection.
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
A2-70 A2-80 A4-70 A4-80
Materials and Chemical compstition
| CHEMICAL COMPOSI(% ) | |||||||||
| Type | C | Si | Mn | P | S | Ni | Cr | Mo | Cu |
| ≤ | ≤ | ≤ | ≤ | ≤ | ≥ | ≥ | ≥ | ≈ | |
| 201Cu | 0.08 | 1.00 | 7.5-10 | 0.06 | 0.03 | 4.00-6.00 | 14.0-17.0 | 2.0-3.0 | |
| 201 | 0.15 | 1.00 | 8.50 | 0.06 | 0.03 | 3.50-5.50 | 16.0-18.0 | ||
| 202 | 0.15 | 1.00 | 7.5-10 | 0.06 | 0.03 | 4.00-6.00 | 17.0-19.0 | ||
| 301 | 0.15 | 1.00 | 2.00 | 0.045 | 0.03 | 5.00-8.00 | 16.0-18.0 | ||
| 302 | 0.15 | 1.00 | 2.00 | 0.045 | 0.03 | 8.00-10.0 | 17.0-19.0 | ||
| XM7 (302HQ) |
0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 8.50-10.5 | 17.0-9.00 | 3.0-4.0 | |
| 303 | 0.15 | 1.00 | 2.00 | 0.20 | ≥0.15 | 8.00-10.0 | 17.0-19.0 | ≤0.60 | |
| 304 | 0.07 | 1.00 | 2.00 | 0.035 | 0.03 | 8.00-10.0 | 18.0-20.0 | ||
| 304HC | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 8.00-10.0 | 17.0-19.0 | 1.0-3.0 | |
| 304M | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 8.50-10.0 | 18.0-20.0 | ||
| 316 | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 | |
| 316L (12Ni) |
0.03 | 1.00 | 2.00 | 0.045 | 0.03 | 12.0-15.0 | 16.0-18.0 | 2.0-3.0 | |
| 316L (10Ni) |
0.03 | 1.00 | 2.00 | 0.045 | 0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 | |
| 321 | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 9.00-13.0 | 17.0-19.0 | Ti≤5*C% | |
| 2520 | 0.08 | 1.00 | 2.00 | 0.035 | 0.03 | 19.0-22.0 | 24.0-26.0 | ||
PACKING
QBH BULK
20-25KG/CTN,36CTNS/PALLET
20-30KG/BAGS,36BAGS/PALLET
ONE TON/BOXES
50KG/ IRON DRUM,12 IRON DRUMS/PALLET
QBH SMALL PACKING
6boxes/CTN,36CTNS/PALLET
Packing in small boxes according to customer’s requirements
Packing in plastic bag according to customer’s requirements
QBH PALLET TYPE
SOLID WOOD FUMIGATION PALLET
EURO Pallet
THREE SPLINT PALLET
WOODEN BOX
The advantages of QBH
The combination screw generally has two combination screws and three combination screws, that is, one screw is equipped with a spring washer and a flat washer. A screw that is then screwed together.
QBH company has more than 10 years of experience in the manufacture of composite screws, and is good at the production and manufacture of various composite screws. It has complete and strict testing process, environmental protection color zinc, environmental protection blue zinc, white zinc, color zinc, white nickel and other electroplating methods. It supports drawing customization and welcome to inquire.
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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