China Cross Flange Self Tapping Screw Suppliers - High-Quality Factory Direct with Fast Delivery
| FOB Price | US $0.5 - 9,999 / Piece |
| Min.Order Quantity | 100 Piece/Pieces |
| Supply Ability | 10000 Piece/Pieces per Month |
Low cost, high strength, surface requires rust prevention treatment, such as galvanizing and Dacromet.
Strong corrosion resistance, suitable for humid or chemical environments.
Lightweight or conductive demand scenarios, but with lower strength.
Divided into electroplating (blue and white zinc, color zinc) and hot-dip galvanizing, generally rust resistant, suitable for indoor environments.
No risk of hydrogen embrittlement, high temperature resistance, corrosion resistance, used in automobiles and outdoors.
Increases lubricity and reduces installation friction.
Insulation, anti loosening, commonly used in electronic devices.
Sheet metal parts, interior panels, and wiring harness fixation must be shock resistant and anti loose.
Circuit board and shell assembly, mainly small size (M2-M4) to avoid conductive interference.
Installation of color steel plates, aluminum alloy doors and windows, and protection of flange surfaces from scratches.
Panels and enclosures fixed to withstand vibration environments.
M2 to M12 (commonly M4-M6).
6mm to 100mm, depending on application requirements.
Usually 2-3 times the diameter of the screw (such as M5 flange surface diameter of about 10-15mm).
GB/T 15856.4 (Pan head cross flange self tapping screws).
DIN 7500 (Technical standard for self tapping screws).
ANSI/ASME B18.6.4, SAE J78 (automotive applications).
Common materials include Carbon steel (low cost, high strength), Stainless steel 304/316 (strong corrosion resistance), and Aluminum alloy/copper (lightweight and conductive).
Available surface treatments are Galvanization (electroplating and hot-dip), Dacromet (zinc chromium coating) for high temperature and outdoor use, Phosphating for lubricity, and Nylon coating for insulation and anti-loosening.
They are widely used in automotive manufacturing (sheet metal and wiring harnesses), electronic appliances (circuit boards), architectural decoration (doors and windows), and mechanical equipment.
The nominal diameter ranges from M2 to M12, with M4-M6 being the most common. The length typically ranges from 6mm to 100mm depending on specific application requirements.
The flange diameter is usually 2 to 3 times the diameter of the screw. For instance, an M5 screw typically features a flange surface diameter of about 10-15mm.
These screws comply with National standard GB/T 15856.4, German standard DIN 7500, and American standards ANSI/ASME B18.6.4 and SAE J78.