Roofing Tek self drilling hex head screws With EDPM Washers ,
Mechanical Plating AS3566 Class 3 Surface
1. Product Description
Hex Washer Head Self Drilling Screws (Zinc-Plated Steel) are
designed for use in metal applications. Self-Drilling Screws, also
known as Tek screws, eliminate the need for a pre-drilled hole.
Like self tapping screws, self drilling screws cut threads while
being installed. A self drilling screw, however, has a notched
point that acts as a drill point and therefore does not require a
pre-drilled hole before installing.
The generic name for these screws are Self Drilling,he length of
the drill point determines the material thickness which the screw
can reliably penetrate.When selecting a self-drilling screw design,
it is important to consider the material thickness and type of
materials to be joined.
Australian standard AS3566 drilling screw anti-corrosion technology
is a world-class cash technology. The use of this technology can
greatly improve the anti-corrosion and anti-rust ability of screws.
Ordinary electroplating screw salt spray test is only about 50
hours, while the AS3566 CLASS 3 drill tail screw salt spray test
more than 1000 hours.
Mechanical galvanized and traditional galvanized, hot dip zinc
compared to have a unique advantage:
1. No hydrogen embrittlement, no annealing phenomenon. Can
guarantee high strength steel, cemented carbide just, spring steel
and other parts have mechanical and structural mechanical
properties, the use of reliable.
2. Uniform coating. Coating thickness from 5-100um within the
controllable, silver-gray, and according to user requirements for
closed or passivation, coloring.
3. Strong anti-corrosion. According to the thickness of the coating
and post-treatment type salt spray corrosion resistance test can
reach 100-1500 hours.
4. Environmental non-toxic The whole process of cyanide-free, no
ammonia, no chelating agents and other toxic and harmful
substances, no heavy metals. The following are the same as the "
5. Choose a variety of coatings easy. At present, the company's
products to zinc-based, according to user requirements plating
single metal coating, multi-metal coating.
6. save costs. The price of mechanical plating is much cheaper than
ordinary zinc-nickel alloy plating.
|Main products||self drilling Screws|
|Size Range||Diameter:M2---M64 Length:5mm---400mm(Customized is acceptable)|
Diameter:6#---2inch, Length:1/2inch---30inch(Customized is
|Grade||4.8, 5.8, 8.8 grade|
|Surface||color painted with zinc plated or hot dip galvanized|
|Others||Non-standard/standard/OEM/ODM/Customized service are provided.|
|Phillips pan head self drilling screw||C1022A,SUS304,SUS316,SUS410||DIN7504N,ISO15481|
|Phillips flat head self drilling screw||C1022A,SUS304,SUS316,SUS410||DIN7504P,ISO15482|
|Phillips oval head self drilling screw||C1022A,SUS304,SUS316,SUS410||ISO15438|
|Hex head with washer self drilling screw||C1022A,SUS304,SUS316,SUS410||DIN7504K,ISO15480|
|Hex head with flange self drilling screw||C1022A,SUS304,SUS316,SUS410||GB/T1586.4|
- For the fastening process in steel, they are used on steel frame
construction or fastening other materials on steel.
- For the fastening process in wood, they are used for applications
in wood structures or industrial lightweight constructions, such as
roof deck, flooring.
- For the fastening process in aluminum, they are used for special
industrial applications, construction and manufacturing of windows.
1.The Special technology treatment of the surface makes the product
anti-corrosion , antirust and durable.
2.Exact forging standard of knife edge and high hardness of surface
make it easy to drill.
3.Using the advanced technology to control the core hardness,
avoiding rupture effectivity,
4. Quick self drilling , drilling , tapping, locking the oncce, and
combining with the strength.
5. Save contruction time, improve working efficency.
6. Technology, professional manufacturing , quality assurance.
Advantages of mechanical galvanizing
In the automotive industry has been used for 25 years
Industry standards are recognized by many industry standards, in
line with the global technical standards of various industries: BS:
7371, ASTM B695, Ford S437, GM 3044, VW TL155 etc.
Mechanical coating thickness is very uniform, so in line with the
minimum thickness of the customer requirements of zinc metal is
4. Corrosion resistance
The mechanical coating as a cathode and anodic coating shows
excellent protection performance. If the coating thickness is
appropriate, it can exceed 1500 hours of neutral salt spray test.
5. Simple operation and control, most of the process can be
6.Environmental protection process, no pollution to the environment
8.High product quality, excellent combination of strength and
uniformity, up to 8 or more
5. More pictures