Tianjin Factory Galvanized Countersunk Head Self-Drilling Screw

• Material: Carbon Steel
• Type: Countersunk Head
• Groove: Cross
• Connection: Common Bolt
• Head Style: Counter Sunk Bolt
• Standard: DIN
• Grade: 4.8
• Transport Package: Bag, Carton, Box
• Specification: 3.5 3.9 4.2 4.8mm
• Origin: China
• HS Code: 7318140000
• Production Capacity: 30000 Tons

Product Description

Tianjin Factory Galvanized Countersunk Head Self-Drilling Screw
 

Material	Stainless Steel
Diameter	#6(3.5mm),#7(3.9mm),#8(4.2mm),#10(4.8mm)
Length	9-13mm
Surface Treatment	Phosphate, Galvanize, Nickle, Ruspert, etc
Head Mark	As per the customer's request
Packaging	Woven bag 25kg/bag; Bulk in carton; Small box+carton
Delivery Time	Normally 15-30 days

1. Self-tapping screws have various names. They're often called metal screws, sheet metal screws, tapping screws, or tapper screws.

2 Their tips come in different shapes: pointed (like a pencil), blunt, or flat, and they are described as thread-forming, thread-cutting, or thread rolling. If the screw is pointed, it will be thread-cutting - tapping and creating threads in a pre-drilled hole. If the tip is flat, it is thread-rolling - rolling or extruding threads and creating zero clearance between the screw and material.

3. Self-tapping screws for plastic joining is reliable if used properly.

4. They are cheap compared to other means of joining.

5. Easily disassembled.

6. It doesn't require pre-molded threads.

7. Good impact and vibration resistance.

8. No curing time or settling time to achieve full strength.

9. No special tool is required.

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FAQ:
Q: What are your Hot sale products?
A: Drywall screws, Chipboard screws, Wood Screws, Self Tapping Screws, Self Drilling Screws, Gypsum screws, Roofing screws, Truss Head screws, and other Special screws.

Q: How long is your delivery time?
A: Generally it is 10-15 days if the goods are in stock. or it is 4-5 weeks if the goods are not in stock, according to quantity.

Q: Do you provide samples? is it free or extra?
A: We could offer the sample for free, but consumers should pay the freight.

Q: Why choose us?
A: 1) Reply to you within 24 working hours.
    2) Experienced staff would like to answer all your questions in time.
    3) Customized design is available. ODM&OEM are welcome.
    4) Special discounts and protection of sales area provided to our consumers.
    5) As an honest exported seller, We are a professional manufacturer, with quality quotations, good service, and skilled                     technicians to ensure our products are finished in high quality and stable features.