DIN 6921 Stainless Steel Bolt m19 m14 stainless steel Hex Flange Bolts

1.Product Description

Flange bolts consisted by hexagon head and flange (six angle below the gasket and hexagonal fixed are one) and the screw with external thread of the cylinder) is composed of two parts of various bolt, to tie in with the nut for fastening and connecting two through holes of parts.
This type of connection is called bolt connection.
If the nut is screwed down from the bolt, the two parts can be separated so that the bolt connection is detachable and connected.Flange bolts
1, hexagonal head types: flat brain, the brain and the other is concave.
2, the surface color categories: according to different needs, the surface coating of white, green, yellow color, corrosion-resistant Dacromet.
3, flange categories: Depending on the position of the flange bolts is different disk size requirements vary, and another flat and toothed points, toothed anti-slip effect.
4, connected by force, there are common and have articulation hole of the flange bolts articulation hole to hole size and fit that is used when lateral force.
In addition, to meet the needs of the lock after installation, the rod portion with a hole, the holes can not screw loose when subject to vibration.
Some flange bolts threaded rod portion not to do, called thin rod flange bolts. This flange bolts in favor of change by force coupling.
Note: The country label currently used on the market, GB5789 (bulk), GB16674 instead of GB5787 (small head)

2. Specification

More details:

3.Application

Flat welding flange: Multi-media for under relatively mild conditions of the case, such as low-voltage non-purify compressed air, low pressure circulating water, it has the advantage of cheaper prices;
Welded flange: The most commonly used, it is welded tubes, welded joint quality is better, and the use of taper neck flange transition, can withstand relatively harsh conditions;
Socket welding flange: commonly used in PN≤10.0MPa, DN≤40 pipeline;
Loose flange: commonly used in the medium temperature and pressure are not high and medium corrosive conditions. When the corrosive medium, contacting the media portion of the flange (flange short section) corrosion-resistant high-grade materials such as stainless steel and other materials, and the use of external low-grade materials such as carbon steel flange ring clamp it in order to effect a seal;

4.Advantages

With a high cylindrical head, socket cap head fasteners offer high holding power at high torque situation.

Which mean it could supply greater tensile strength than equivalent hex head caps screws, meanwhile could buried into the parts.

5.More pictures