The Hex Flange Self Drilling Screw has hexagonal head and pointed tail, which can be drilled, tapped and locked directly on the material (steel plate), greatly saving the drilling time. It has the following advantages:
①Cold galvanized surface treatment with yellow zinc and white zinc.
②Carburizing and tempering treatment enhance the surface hardness, to ensure the strength.
The carburizing intensity is as follows:
③The rubber /PVC/Composite washer is waterproof and extends its life.
The hex flange self drilling screw is used for fixing the connection of colored steel sheet on angle, channel, I-beam and C.Z purline in steel structure engineering. Also used in the assembly of automobile body, container, shipbuilding and refrigeration equipment.
|Finish||White-blue zinc plated, Yellow zinc plated|
|Head type||Flange Hex Head|
|Packing||1000pcs/800pcs/500pcs /250pcs per box, or 1kg/25kg per bag|
|MOQ||2 Tons for each size|
|Port||Port Tianjin, China|
|Delivery time||Normally in15-30 days|
4. Production process
|1. Raw material||2. Cold upsetting||3. Rolling thread|
|4. Hot treatment||5. Galvanize/Parkerising||6. Packing|
5. Quality control
A) Purchase 1022A materials from famous brand factories in China to ensure the quality.
B) Follow up the production of every procedure, strictly follow the ISO9001 standard.
C) Weigh test
D) Check size
D) Check size
E) Attack speed test
F)Salt spray test more than 72 hours.
6.Packing & Shipment
A) 1kg/small plastic bag, or 25kgs / PP woven bag, then bags or cartons loaded on pallet;
B) 1000pcs / 800pcs / 500pcs / 250pcs per small box, then small boxes into cartons;
C) Support customized packaging.
Shipping: By LCL or FCL Sea Shipment;