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2022 China New Design Common Wire Nail - Bulge Head DIN Yulongjian Bulk and Box Package Coarse Thread Drywall Screw – Xinruifeng

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"Sincerity, Innovation, Rigorousness, and Efficiency" is the persistent conception of our company for the long-term to develop together with customers for mutual reciprocity and mutual benefit for Set Screw, Long Self Tapping Screws, Plain Screw, With the eternal goal of "continuous quality improvement, customer satisfaction", we are sure that our product quality is stable and reliable and our products are best-selling at home and abroad.
2022 China New Design Common Wire Nail - Bulge Head DIN Yulongjian Bulk and Box Package Coarse Thread Drywall Screw – Xinruifeng Detail:

Drywall screw:

1. Heat treatment: It is a method of heating steel to different temperatures and then using different cooling methods to achieve different purposes of changing the properties of steel. The commonly used heat treatments are: quenching, annealing, and tempering. What kind of effects will these three methods produce?

2. Quenching: A heat treatment method in which the steel is heated to above 942 degrees Celsius to make the steel crystals in austenitic state, and then immersed in cold water or cooling oil to quench to make the steel crystals in a martensitic state. This method can increase the strength and hardness of the steel. There is a very big difference in the strength and hardness of the steel with the same label after quenching and without quenching.

3. Annealing: A heat treatment method in which the steel is also heated to an austenitic state and then naturally cooled in air. This method can reduce the strength and hardness of the steel, improve its flexibility, and facilitate processing. Generally, steel will go through this step before processing.

4.  Tempering: Whether it is quenched, annealed or press-formed, steel will generate internal stress, and the imbalance of internal stress will affect the structure and mechanical properties of the steel from the inside, so a tempering process is required. The material is kept warm continuously at a temperature of more than 700 degrees, its internal stress is changed and then cooled naturally.

Bulge Head DIN Yulongjian Bulk and Box Package Coarse Thread Drywall Screw2
Bulge Head DIN Yulongjian Bulk and Box Package Coarse Thread Drywall Screw4
Bulge Head DIN Yulongjian Bulk and Box Package Coarse Thread Drywall Screw3

Size(mm) Size(inch) Size(mm) Size(inch) Size(mm) Size(inch) Size(mm) Size(inch)
3.5*13 #6*1/2 3.5*65 #6*2-1/2 4.2*13 #8*1/2 4.2*102 #8*4
3.5*16 #6*5/8 3.5*75 #6*3 4.2*16 #8*5/8 4.8*51 #10*2
3.5*19 #6*3/4 3.9*20 #7*3/4 4.2*19 #8*3/4 4.8*65 #10*2-1/2
3.5*25 #6*1 3.9*25 #7*1 4.2*25 #8*1 4.8*70 #10*2-3/4
3.5*29 #6*1-1/8 3.9*30 #7*1-1/8 4.2*32 #8*1-1/4 4.8*75 #10*3
3.5*32 #6*1-1/4 3.9*32 #7*1-1/4 4.2*34 #8*1-1/2 4.8*90 #10*3-1/2
3.5*35 #6*1-3/8 3.9*35 #7*1-1/2 4.2*38 #8*1-5/8 4.8*100 #10*4
3.5*38 #6*1-1/2 3.9*38 #7*1-5/8 4.2*40 #8*1-3/4 4.8*115 #10*4-1/2
3.5*41 #6*1-5/8 3.9*40 #7*1-3/4 4.2*51 #8*2 4.8*120 #10*4-3/4
3.5*45 #6*1-3/4 3.9*45 #7*1-7/8 4.2*65 #8*2-1/2 4.8*125 #10*5
3.5*51 #6*2 3.9*51 #7*2 4.2*70 #8*2-3/4 4.8*127 #10*5-1/8
3.5*55 #6*2-1/8 3.9*55 #7*2-1/8 4.2*75 #8*3 4.8*150 #10*6
3.5*57 #6*2-1/4 3.9*65 #7*2-1/2 4.2*90 #8*3-1/2 4.8*152 #10*6-1/8

Q1: Are you trading company or manufacturer?
A1: We are the manufacturer. We also have our professional Foreign Trade Team for servicing you. We provide 7×24 hours real-time video verification factory service.

Q2: What is your terms of payment ?
A2: 30%T/T in advance ,balance before shipment. And we also can accept L/C at sight payment terms.

Q3. Can you provide a sample?
A3: Yes, We can supply sample at free charge, but not including Express charge.

Q4. Can you provide Test Report?
A4: Yes, we can provide Factory Test Report for you at free charge from our company. And you also can afford cost to ask the Thirty Party like SGS, BV etc to Test your order before shipping.

Q5: Can you provide Technical support and After sales service?
A5: Yes, we can provide you the supply chain solution for Fastener products and We provide you the technical solution for Fastener Equipment. We also provide you the after sales service.

Q6: How do we can know more information for your factory?
A6: You can follow our YouTube, Linkedin, Facebook, Twitter, WeChat, and Whatsapp etc because we continuously updates video about our company. You also can directly see our factory via Live Video of Skype,WeChat etc at working time.

Q7: How do we contact you?
A7: You can contact us via Email, also can via WeChat, Whatsapp, Skype, Made-in-China Message and Phone etc at your any time.

Q8: Can you finish customs clearance for order?
A8: Yes, we can finish Export customs clearance for your order in our country.


Product detail pictures:

2022 China New Design Common Wire Nail - Bulge Head DIN Yulongjian Bulk and Box Package Coarse Thread Drywall Screw – Xinruifeng detail pictures

2022 China New Design Common Wire Nail - Bulge Head DIN Yulongjian Bulk and Box Package Coarse Thread Drywall Screw – Xinruifeng detail pictures

2022 China New Design Common Wire Nail - Bulge Head DIN Yulongjian Bulk and Box Package Coarse Thread Drywall Screw – Xinruifeng detail pictures

2022 China New Design Common Wire Nail - Bulge Head DIN Yulongjian Bulk and Box Package Coarse Thread Drywall Screw – Xinruifeng detail pictures

2022 China New Design Common Wire Nail - Bulge Head DIN Yulongjian Bulk and Box Package Coarse Thread Drywall Screw – Xinruifeng detail pictures


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Innovation, good quality and reliability are the core values of our enterprise. These principles today extra than ever form the basis of our success as an internationally active mid-size organization for 2022 China New Design Common Wire Nail - Bulge Head DIN Yulongjian Bulk and Box Package Coarse Thread Drywall Screw – Xinruifeng, The product will supply to all over the world, such as: Belarus, New Delhi, Peru, Due to our strict pursues in quality, and after-sale service, our product gets more and more popular around the world. Many clients came to visit our factory and place orders. And there are also many foreign friends who came for sight seeing, or entrust us to buy other stuff for them. You are most welcome to come to China, to our city and to our factory!
  • Products and services are very good, our leader is very satisfied with this procurement, it is better than we expected,
    5 Stars By Ann from Auckland - 2017.06.25 12:48
    The company's products can meet our diverse needs, and the price is cheap, the most important is that the quality is also very nice.
    5 Stars By Sahid Ruvalcaba from Washington - 2017.04.18 16:45

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