HINA
Hex
12.9
Hex Head
Stainless Steel
DIN, GB, JIS
100-300mm
Stainless Steel 304 410 316
Building, Machinery, Chemical Indust, Environment
Ruspert /Plain/Dacromet
7-30days
Manufacturer/Factory
OEM;Own Brand;ODM;Others
SS304+410 Self Drilling Bi-Metal Screw
Hexagon Head
Common Bolt
Hexagonal
HINA
20-25kg/Cartons+900kg/Pallets
M2-M10
China
7318159090
Product Description
Bi Metal Roofing Screw SS304+Ss410 Compound Self Drilling Hex Head Bi-Metal Screw
Bi-metal screw, namely bimetallic screw, is a kind of screw made of two different metals, usually combining stainless steel (such as SS300) and heat-treated carbon steel.
Stainless Steel Part: Usually, high-quality stainless steel materials such as 304 and 316 are selected.
Carbon Steel or Alloy Steel Part: The drill tail or tip part is made of high-carbon steel or alloy steel, which has undergone special heat treatment processes, such as quenching and tempering, to improve the hardness and wear resistance of the material.
Construction Industry: In steel structure construction, it is used to fix components such as metal roof panels, wall panels, and purlins. For example, bimetallic composite self-drilling screws can be used.
| Diameter | The diameter of bimetallic hexagon composite self-drilling screws usually ranges from 2.9 mm to 6.3 mm, and common specifications include M2, M2.5, M3, M4, M5, M5.5, M6, M6.3, etc |
| Length | Its length varies according to specific requirements, ranging from several millimeters to hundreds of millimeters. Common length specifications include 10 mm, 12 mm, 16 mm, 20 mm, 25 mm, 32 mm, 50 mm, 75 mm, 90 mm, 110 mm, and 125 mm, etc |
| Hardness | Different parts of the bimetallic screw have different hardness requirements. For example, the drill tip part made of carbon steel or alloy steel has a relatively high hardness after heat treatment, generally reaching about HRC50 - 60, so that it can smoothly drill into the connected materials |
| Tensile Strength | Common tensile strength grades include 4.8, 6.8, 8.8, 10.9, 12.9, etc |
| Surface Treatment |
|
- Excellent Corrosion Resistance
- Outstanding Drilling Ability
- High-Strength Connection Performance
- Diversified Design Options
Construction Industry: In steel structure construction, it is used to fix components such as metal roof panels, wall panels, and purlins. For example, bimetallic composite self-drilling screws can be used.
Mechanical Manufacturing Industry: It is widely used in the assembly and maintenance of mechanical equipment, such as in the manufacturing of machine tools, construction machinery, mining equipment, etc.
Electronic Equipment Industry: It plays an important role in the assembly of electronic equipment housings and the fixation of circuit boards. Its small size specifications and good corrosion resistance can meet the high precision and reliability requirements of fastening elements for electronic equipment, while avoiding potential damage to electronic components caused by rust and corrosion.
New Energy Industry: With the rapid development of the new energy industry, bimetallic screws have also been widely used in fields such as solar photovoltaic and wind power generation.
