M12 M20 M5 M8 M6 DIN 928 Square Weld Nuts Class 10 8 6 4 High Tensile Steel 8.8

M12 M20 M5 M8 M6 DIN 928 Square Weld Nuts Class 10 8 6 4 High Tensile Steel 8.8

Description

A square nut is a four-sided nut. Compared to standard hex nuts, square nuts have a greater surface in contact with the part being fastened, and therefore provide greater resistance to loosening (though also greater resistance to tightening)[citation needed]. They are also much less likely to become rounded-off after repeated loosening/tightening cycles. Square nuts are typically mated with square-headed bolts. Square nuts are used along with flat washers in order to avoid damage from its sharp edges and helps to increase the strength of the fastener. Square nuts can have standard, fine or coarse threading with platings of zinc yellow, plain, zinc clear, tin and cadmium, among others.  
Smooth surface
The surface is smooth without burr, which meets the requirements of national standard. Regular inspection qualified, well-made, strong and durable.
Identification markings
Fine selection of materials, good processing performance, long life
Brand quality is guaranteed, international standards and specifications.
Thread
Deep and symmetrical thread pattern, no missing thread, uniform stress, not easy to slip

1. Wide application

Carbon steel is widely used for various building and project structure , and the bracket of factory , and bridge , car , vessel and steel tower and so on.

2.Easy to process

“C” element of the carbon steel is very few , the hardness is not as the stainles steel and this fits for different process methods .

3. Convenient for plating

Most carbon steel products have to be plated with various platings like zinc , nickel , brass and oil etc to keep the products without rust and long service performance .

4. Best cost

Carbon steel is the best cost in all the steel materails with good quality .

5. Enviroment friendly

All chemical elements and surface treatment are meet for the relative standards .eg , GB , ROSH etc

6. Perfect stability

Inside components and instructure of part are reformed after quenching , keeping this status long time , and that make part satisfied expect requirements .

7. Easy to welding

Alloy element of carbon steel belows 5% this make welding is very easy to be done and get good apperance .

 Specification

Popular size

din 55 928
din 928 7/16
din 928 a2
din 928 class 10
din 928 iso
din 928 m10
din 928 m12
din 928 m16
din 928 m20
din 928 m5
din 928 m6
din 928 m8
din 928 nut
din 928-m6-st
din 928-m8-st
m6 din 928