Power Fittings DIN557 Class6 Cl8 HDG M16 Square Nuts

Power Fittings DIN557 Class6 Cl8 HDG M16 Square Nuts

Specification

Square Nuts Our expertise enables us to manufacture, export and supply a broad range of Square Nuts. Offered nuts are designed with high level of accuracy in tandem with the international standards. Manufactured using superior quality raw material with the help of advanced technology;

DIN 557 - Square Nuts

Current norm: DIN 557
Equivalent norms: CSN 021624; PN 82151; UNI 5597;

Legend:

m - height of the nut
d - the nominal diameter of the thread
s - size square
mw - height

Makings:QBH

Steel: 6 8
Stainless: A2, A4
Plastic: -
Non Ferrous: -
Thread: 7H

Table according to DIN 557:

dimensions in mm

Process flow

Cold forging

Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ tapping ➨ make heat treatment(if need) ➨ Finish ➨ Packing

Product Grade

Class 6 and 8

Materials and Chemical compstition

1008

1035

Finish

PLAIN ZP YZP BLACK HDG DACROMET GEOMET CHROME NICKEL AND SO ON

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

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

MECHANICAL PROPERTY

TESTING STANDARD:DIN267- 4 OR ISO898-2

The advantages of QBH

• QBH brand sales to the main quality assurance.
• Years of export trade management, excellent service, word-of-mouth guarantee.
• By working with TUV,escort for quality.
• Customization of non-standard parts can be made according to customer's requirements and drawings.
• For quality customers,we can provide a certain credit period.
  

Product application

Metric DIN 557 regular pattern square nuts are four sided nuts. Their geometry provides a greater surface area to apply higher torque when tightening and also a greater surface are in contact with the part being fastened, thereby increasing the resistance to loosening.

The engineering case

Bangladesh power facilities accessories project

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 natural superiority for the export.

The company mainly produces high-strength fasteners business, bolts and nuts are the main,the main standard are DIN/ANSIASME/JIS/UNI/ISO/AS/BS/GB and so on.The product massively applies in the bridgeroadthe petroleum pipeline facilitythe wind power generation and steel structure project. Carbon steel bolts mainly have 4.8、5.8、6.8、8.8、10.9、12.9,nuts mainly have 4、6、8、10,the main material of stainless steel fastener is 201304316.QBH from its establishment to he present,after ten years of development,it is equipped with perfect testing equipment,and SGS and TUV have a good cooperation,each batch of products is accompanied by a 3.1 or 3.2 certificate,further escort the quality of the company.

In 2017,we registered the trademark “QBH” in the CHINA、EU、United States,and has six fastener product patents,has obtained the Zhejiang Province science and technology small and medium-sized enterprise certificate as well as the ISO9001:2000 cerfiticate.With the continuous development and expansion of the company,as well as customer demand for product diversification,on the basis of its original production,in order to further enhance the potential for cooperation with customers,as well as to provide competitive prices.Starting in 2015,QBH has taken part in several fastener enterprises one after another,the product variety is more abundant and the price is more advantageous,and the quality can also be well controlled. QBH has always been to provide customers with efficient and convenient service and quality products,and create a pleasant trading process for customers for the mission,deeply participate in customer construction projects and make progress together with customers,this means that we need to provide better and more cost-effictive solutions,so as to help customers stand out from the competition.

QBH promises to always provide you with excellent quality,efficient service and very competitive prices.We believe that the cooperation between us is not only based on business,but also hope that we can open new markets on the basis of win-win situation.And thank all the customers in the past to give us great support and help,make us grow up gradually,at the same time also hope that in the nere future,and you can establish new business relations.