Roofing Metal Self Drilling Screw Self Tapping Screw

• Material: Carbon Steel
• Type: Hexagon Head
• Groove: Cross
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, GB, ANSI, BSW, JIS, GOST
• Grade: 8.8
• Customized: Available
• OEM: Available
• Transport Package: Plastic Bag/Small Box/Bulk Packing etc.
• Specification: 3.9mm etc
• Trademark: OEM
• Origin: China
• HS Code: 731815
• Production Capacity: 50000pieces/Per Month

Product Description

 

 

 

Product Description

Hardware Hexagon Head screw Roofing Screw Self Drilling Screw Self Tapping Screw Drywall Chipboard Screw Furniture Screw Machine screw with EPDM Washer

Standard	DIN7504K
Inside Diameter	ST3.5-ST6.3
Material	SS304,SS316,SS2205,SS2507,SS410
MOQ	1000 pieces
Surface treatment	Hot Galvanized,Black,Color-zinc,Blue white zinc
Package	Plastic bag, Boxes and cartons, Pallets, Customized
Price terms	EXW, FOB, CIF, etc.
Payment terms	T/T, Paypal, L/C, Western union, etc.
Certifications	ISO 9001:2015
Note	Free samples but freight cost is paid by customers(when sample is in stock)   Sample fee (when samples need to be customized)

We need more detail as follow. This will allow us to give you an accurate quotation. 
Before offer the price,get the quote simply by completing and submitting the form below:
• Product:__                   
• Measure: _______(Inside Diameter) x_______(Outside Diameter)x_______(Thickness)
• Order Quantity: _________________pcs
• Surface treatment: _________________
• Material: _________________
• When do you need it by? __________________
• Where to Shipping: _______________ (Country with postal code please) 
• Email your drawing ( jpeg, png or pdf, word) with minimum 300 dpi resolution for good clarity.

Products Details 

Drawing

Screw Thread		ST2.9	ST3.5	(ST3.9)	ST4.2	ST4.8	ST5.5	ST6.3
d
P	Pitch	1.1	1.3	1.3	1.4	1.6	1.8	1.8
h	min	0.4	0.6	0.6	0.8	0.9	1	1
dc	max	6.3	8.3	8.3	8.8	10.5	11	13.5
	min	5.8	7.6	7.6	8.1	9.8	10	12.2
k	max	2.8	3.4	3.4	4.1	4.3	5.4	5.9
	min	2.5	3	3	3.6	3.8	4.8	5.3
s	max	4	5.5	5.5	7	8	8	10
	min	3.82	5.32	5.32	6.78	7.78	7.78	9.78
dp		2.3	2.8	3.1	3.6	4.1	4.8	5.8
Drilling range(thickness)		0.7~1.9	0.7~2.25	0.7~2.4	1.75~3	1.75~4.4	1.75~5.25	2~6

 

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Installation Instructions

Our Advantages

Advantages

1. Use good quality material to ensure the quality
2. Good plating and well finish
3. Straight, not easy to broken
4. Sharp thread, good drilling
5. Deep hole
6. Fast production time
7.Stable quality
8. Good after-sale service

Package information:

1. We have several sizes of packing dimensions, can be 20kg or 25kg per carton; 

2. For large orders, we can design specific sizes of boxes and cartons; 

3. Normal Packing: 1000pcs/500pcs/250pcs per small box. then small boxes into cartons. 

4. Can provide special packings as middle east clients requests;

Our factory of drywall screws 

The packing of drywall screws 

 

Certifications

Customers

FAQ
1,How to deal with defects?
Before your shipment ,we will inspect carefully and make sure the product is perfect. And we will provide two year warranty so please kindly to purchase.
2,Can you offer OEM &ODM?
Our company accept OEM&ODM, if your need it, please inform us of your specific requirements.
3,What is the MOQ of your product?
a. Furniture hardware, such as hinge, latch, wooden connector and etc. MOQ=5000pcs
b. Construction hardware, such as anchor pole, bracket and etc. : MOQ=1000pcs
c. Fasteners, such as screw, nut, bolt, washer and etc. :MOQ=1ton
d. Gloves, such as safety glove, examination glove and etc. : MOQ=1000pcs
e. Protective products, such as mask, coverall and etc. : MOQ=1000pcs
4,what's your mode of transportation/shipping?
By sea, By air, By DHL, FedEx, UPS, TNT ,EMS EXPRESS etc.
Of course, you can also specify the mode of transportation as well as tell us your specific requirements.
5,Payment Terms
T/T, L/C, Western Union. Paypal . if you need to pay by other ways, please negotiate with us.
6,Delivery time
7-30days after we receive your prepayment or L/C
7,I don't trust your products quality, can you provide samples?
Yes, we can offer you free samples, but you need to pay the freight. after your first order, the sample freight fee will refund to you.
8,Are you a factory or a trade company?
We are both factory and trade company, welcome to visit our factory at any time.
 We will offer what you want, solve the problems what you have,
just don't hesitate to contact us!