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Grade 8.8 Full Threaded Steel Hex Bolt Din 933 M3 - M42 Size Black Color

Categories Steel Hex Bolt
Brand Name: MD
Model Number: M6-M12
Certification: ISO
Place of Origin: Handan Yongnian
MOQ: 1pieces
Price: Negotiate
Payment Terms: L/C, T/T
Supply Ability: 10000pieces/day
Delivery Time: 25-30days
Packaging Details: Boxes On Pallet
Material:: Iron
Colror:: black
Label: Customers' Requirment
Grade:: 8.8
Size: M6-M30
Type: Hexagon Head Bolt
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Grade 8.8 Full Threaded Steel Hex Bolt Din 933 M3 - M42 Size Black Color


Din 933 Grade 8.8 Full Threaded Hex Bolts ,Steel Hex Bolt M3 - M42 Size

Products Description:

This item is Fine Thread Grade 8.8 Carbon Steel Hex Bolt M12 Din 960 Black Oxide,the material is carbon steel,the grade is 4.8,the thread is fine thread,the size is M12,the standards is DIN960,the surface treatment is black oxide.

The pruduct is bolt,or screw, is a type of fastener, typically made of metal, and characterized by a helical ridge,known as a male thread (external thread) or just thread, wrapped around a cylinder. Some screwthreads are designed to mate with a complementary thread, known as a female thread (internal thread),often in the form of a nut or an object that has the internal thread formed into it. Other screw threads are designed to cut a helical groove in a softer material as the screw is inserted. The most common uses of screws are to hold objects together and to position objects.A screw will almost always have a head on one end which contains a specially formed shape that allows it to be turned, or driven, with a tool.


Tin is a silver white metal, non-toxic, with good weldability and ductility. It is widely used in electronics, food, automobile and other industries. The tin plating process of six angle bolts is classified into two categories: acid plating bath and alkaline tin plating process by the pH value of the plating bath.


Advantage:


The advantage of acid tin plating is that the plating speed is faster. And the coating is bright and meticulous, deep plating ability. The plating solution has a strong tolerance to impurities, and the operation at room temperature is more energy saving. However, the plating method also has shortcomings, that is, the dispersing ability of the bath is poor, the porosity of the coating is higher, the brazing is not as good as the alkaline tin plating, and the two valence tin is hydrolyzed. Therefore, the six angle head bolt acid tin plating is divided into sulphate tin plating, fluorborate tin plating and oxide tin plating because of different conductive medium. At present, some special industrial six - corner head bolts are used in this tin plating process.


Specification


dM8M10M12M14M16M18M20
LWeight/MPCS≈kg
3518.4
4020.435.0
4522.338.153.8
5024.341.258.283.3
5526.344.262.788.3118
6028.347.367.195.4126
6530.250.471.5101134174225


Quality Grade 8.8 Full Threaded Steel Hex Bolt Din 933 M3 - M42 Size Black Color for sale
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