D7504 Self Drilling Screws China Hex Washer Antirust Paint Head Waterproof Corroshield Self Drilling Screw 55mm 150mm

• Customization: Available
• Material: Carbon Steel
• Type: Hexagon Head
• Model NO.: Self Drilling Screws
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, GB
• Grade: 8.8
• Name: Self Drilling Screws with EPDM
• Surface Treatment: Galvanized with Painting Head
• Diameter: 3.5mm - 6.3mm
• Length: 13mm - 220mm
• Thread: Common Thread
• Point: Drill Point
• Color: as Reqeusted
• MOQ: 1 Ton Per Size
• Delivery: 45 Days
• Customized Packing: Acceptable
• Customized Logo: Acceptable
• Application: Roof, Metal
• Transport Package: Box + Carton
• Specification: 6.3x50mm
• Trademark: Spider Screws
• Origin: China
• HS Code: 7318150000
• Production Capacity: 2000/Month

Product Description

Self Drilling Screw Specification

DIN7504 Hex Head Self Drilling Screw
Material	Carbon Steel C1022A.
Application	Metal to metal fastening. Metal to wood fastening. Suitable for roofing, walling and fencing profiles.
Head Type	Hexagonal head. Hex washer head. Hex Flange head.
Surface	Yellow / Blue / Blue white Zinc Plating. Ruspert, Dacoromet. Painting Head or as request.
Point	Drill Point 2# - 5#.
Thread	Full Thread. Half Thread with shank. Thread cutting.
Washer	With or without washer. PVC washer, Steel EPDM bonded washer, Umbrella type washer, Rubber washer or as request.
Packing	Bale Packing (25kgs/bag).
	Box +Carton + Pallet Packing or as request.
Specification
Metric standard Diameters: 3.5mm, 3.9mm,4.2mm, 4.8mm, 5.5mm, 6.3mm. Length: from 13mm to 220mm.			Inch standard Diameters: #6, #7,  #8, #10, #12, #14 Length: from 1/2" to 8-2/3".
Regular sizes
Diameter 4.8mm	Diameter #10 (Inch)	Diameter 5.5mm	Diameter #12 (Inch)	Diameter 6.3mm	Diameter #14 (Inch)
4.8*16	#10*1/2	5.5*20	#12*3/4	6.3*19	#14*3/4
4.8*20	#10*5/8	5.5*25	#12*1	6.3*25	#14*1
4.8*25	#10*3/4	5.5*30	#12*1-1/4	6.3*32	#14*1-1/4
4.8*30	#10*1	5.5*35	#12*1-1/2	6.3*38	#14*1-1/2
4.8*35	#10*1-1/4	5.5*40	#12*1-5/8	6.3*41	#14*1-5/8
4.8*40	#10*1-1/2	5.5*45	#12*2	6.3*51	#14*2
4.8*45	#10*1-3/4	5.5*50	#12*2-1/2	6.3*63	#14*2-1/2
4.8*50	#10*1-5/8	5.5*55	#12*3	6.3*75	#14*3
4.8*55	#10*2	5.5*60	#12*3-1/2	6.3*90	#14*3-1/2
4.8*60	#10*2-1/2	5.5*65	#12*4	6.3*100	#14*4
4.8*65	#10*3	5.5*70	#12*4-1/2	6.3*115	#14-4-1/2
4.8*75	#10*4	5.5*75	#12*5	6.3*125	#14*5
4.8*100	#10*5	5.5*100	#12*5-1/2	6.3*135	#14*5-1/2
4.8*125	#10*6	5.5*125	#12*6	6.3*150	#14*6
4.8*150	#10*6-1/2				#14*7
4.8*165	#10*7				#14*8
4.8*180
**The specifications above are all regular sizes for reference. Please contact us if you have special request.

Features

• Material: Made of carbon steel C1022A to make the Self Drilling Screw have stronger strength. Adopt high-strength rolling arm, small gap, mute, wear-resistant, uniform force. Enable to hold the roofing sheets metal tight.
• Hex head: Could be painted to any color as rust prevention.
• Washer: Help the screws against water penetration.
• Sharp Point: It is usually used in wood structures. Enable the screw the screw in and damage a little.
• Drill Point: Most of the roofing screws are with drill point. It is Commonly used to fasten metal, plastic and fiberglass roofing sheets to metal or wood structures. The drill point enable drilling without creating a pilot hole first. But if it used in extremely hard material, it is advised to use it after creating a pilot hole.
• Surface Treatment: After a zinc coating and heat treated to make the Self Drilling Screws resist corrosion and harder.
• Thread: The screw with full thread ensures that the screw can be better distribute the tension.
• Our Advantage: Adopt high-speed cold heading machine to form one piece, high strength. Self-owned heating treatment producing line, which can promise screws hardness and strength well perform always.Stable drilling speed, not easy to break.

Common Screws Specification                                                               

Material	Carbon Steel 1022A
Head type	Bugle, Countersunk, Double Countersunk, Flat, Flat Chamfered, Truss, Pan, Pan Framing, Wafer, Hexagonal, Round, Binding, Oval, Cheese, or as requested.
Groove	Slotted, Phillips, Phillips Slot, Pozidriv, Torx, Hexagon, Hex Socket, Square, Combined Drive.
Point	Sharp Point, Sharp Point with Type-17, Flat Point, Tapping Point, Drill Point, Spoon Point, Sword Point.
Thread	Coarse Thread, Fine Thread, Chipboard Screw Thread, Saw Thread.
Diameter	3.5mm - 6.3mm (6# -14#), 7.5mm
Length	13mm - 220mm (1/2"- 8-2/3")
Finished	Plain, Phosphated (Black, Grey), Zinc Plated(White Blue Zinc, Yellow Zinc, Clear Zinc), Nickel Plated, Brass Plated, Copper Plated, Hot Dip Galvanized Steel, Dacromet, Ruspert, Black Oxide, Color Painting.
Packing	Bulk: 25kgs per bag/carton. Normal Package: 100/200/500/1000PCS per Box/Small bag+Carton+Pallet Customized: Acceptable.
MOQ	1 ton per size for bulk packing. 10 tons for box+ carton packing.
Customized Product	Acceptable
Customized MOQ	10 Tons

Different types of Screws
Head Type  

Groove Type

Point Type

Thread Type

Surface Treatment                                                              


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Company Profile                                                               
Tianjin Spider hardware factory is subsidiary of Tianjin Spider Impex Co., Ltd and Newspider Tianjin Impex Co., Ltd,. Who is a leading supplier in metal fasteners in Tianjin, we produce and supply Drywall Screws, Chipboard Screws, Self Drilling screw, Self Tapping Screws, Comformat Screws, Spax Screws, Chicago Screws/Binding Post and Book Rings since 2009. Now you will get excellent price and service if you have any related requests.

Our factory covers an area of about 3,500 square meters, there are 150 sets of production equipment, including heading machines, threading machines and so on. Which divided into production workshop and packing workshop with more than 40 employees. The annual production is about 5,000 tons. All the workers are fully experienced in producing. And we have a team to inspect all the process during production.

We have been supplying our products to more than 20 countries. For example, Europe, America, South and Middle America, East and South of Asia. Based on our rich experience of different market, we are sure to be a trusted business partner of our clients.

Our aim is to be you reliable,honest and helpful cooperator.

Production process                                                          
 
Packing & Shipping  
 
                                                     
FAQ                                                                     
Q: What's your Hot sale products?
A: For Screws: Drywall Screws, Drywall Drill Screws, Chipboard Screws with or without Type 17 Point, Spax Screws, Self Tapping decking Screws, Concrete Screws, Self Tapping Screws, Self Drilling Screws, Self Screwing Screws, Roofing Screw, Wafter Truss Head screws and other Special screws.
For Binding Post: Book Ring, Chicago Screws/Book Binding Screws/Male Female Screws, Button Studs, Chicago Rivets.

Q: What is your terms of payment ?
A: Normally is 30%T/T deposit and 70% T/T before the shipment or L/C. 
For small amount order, we have paypal account, also the western union, MoneyGram is ok.

Q: How long is your delivery time?
A: It depends on if we have stock or not, if we have stock goods, we can delivery within 2 days after receive the payment. And normally our production is in 20-30 days for one container (20-26 ton) products.

Q: Do you provide samples? Is it free or extra?
A: Yes, we could offer the sample for free charge but consumer should pay the freight first.

Q: Why choose us?
A:1) Experienced staffs would like to answer all your questions in time.
    2) Customized design is available. ODM&OEM are welcomed.
    3) As an honest exported seller, We are a professional manufacturer,quality quotation, good service, skilled technicians to ensure our products to be finished in high quality and stable feature.