Tianjin 3.5 X 25mm Black Fine Coarse Thread Hidden Camera Drywall Screws

• Customization: Available
• Material: Carbon Steel
• Type: Bugle Head
• Model NO.: drywall screw
• Groove: Cross
• Connection: Common Bolt
• Head Style: Bugle Head
• Standard: DIN, GB
• Grade: 8.8
• Application: Metal Sheet, Wood. Gypsum Board.
• Surface Treatment: Black/Gary Phosphate, Zinc.
• Drive: Phillips
• Point: Sharp Point/ Drill Point
• Thread: Fine Thread/ Coarse Thread
• Diameter: #6 #7 #8
• Length: 13mm to 220mm
• MOQ: 1 Ton Per Size
• Delivery: 35 Days
• Customized Packing: Available
• Customized Logo: Available
• Customized Specification: Available
• Transport Package: Bale Packing or Box+Carton
• Specification: drywall screw 3.5x25 32 35 38 42
• Trademark: Spider Screws
• Origin: Tianjin
• HS Code: 7318150000
• Production Capacity: 1000/Month

Product Description

 

Drywall Screw Specification

Drywall Screw / Gypsum Screw / Sheetrock Screw
Material	Carbon Steel C1022A.
Application	Plasterboard, Gypsum board, Lightweight walls and ceilings, Metal fastening, Wood stud fastening.
Head Type	Bugle / Countersunk.
Surface	Black/Gray Phosphate. Yellow / Blue / Blue white Zinc Plating. Nickel or as request.
Point	Sharp Point / Drill Point.
Drive	Phillips.
Thread	Fine / Coarse / Buttress Thread.
Packing	Bale Packing (25kgs/bag).
	Box +Carton + Pallet Packing or as request.
Specification
Bugle Head Sharp Point				Bugle Head Drill Point
Metric standard Diameters: 3.5mm, 3.9mm, 4.2mm, 4.8mm. Length: from 13mm to 150mm.		Inch standard Diameters: 6#, 7#, 8#, 10#. Length: from 5/8" to 6".		Metric standard  Diameters: 3.5mm, 3.9mm, 4.2mm, 4.8mm.     Length: 13mm to 75mm.	Inch standard  Diameters: 6#,7#,8#,10#.      Length: from 5/8" to 3".
Regular sizes				Regular sizes
Size (mm)	Size (mm)	Size (Inch)	Size (inch)	Size (mm)	Size (Inch)
3.5*13	3.9*45	#6*1/2	#7*2	3.5*19	#6*3/4"
3.5*16	3.9*50	#6*5/8	#7*2-1/8	3.5*25	#6*1"
3.5*19	3.9*55	#6*3/4	#7*2-1/2	3.5*32	#6*1-1/4"
3.5*25	3.9*65	#6*1	#7*3	3.5*35	#6*1-3/8"
3.5*29	3.9*70	#6*1-1/8	#8*3/4	3.5*38	#6*1-1/2"
3.5*32	3.9*75	#6*1-1/4	#8*1	3.5*40	#6*1-9/16"
3.5*35	4.2*19	#6*1-3/8	#8*1-1/4	3.5*42	#6*1-5/8"
3.5*38	4.2*25	#6*1-1/2	#8*1-1/2	3.5*45	#6*1-3/4"
3.5*42	4.2*32	#6*1-5/8	#8*2	3.5*51	#6*2"
3.5*45	4.2*35	#6*1-3/4	#8*2-1/2	3.9*51	#7*2"
3.5*50	4.2*38	#6*2	#8*3	3.9*55	#7*2-3/16"
3.5*55	4.2*41	#6*2-1/8	#8*4	3.9*60	#7*2-3/8"
3.5*65	4.2*45	#6*2-1/4		3.9*65	#7*2-9/16"
3.5*70	4.2*50	#6*2-1/2		4.2*25	#8*1"
3.5*75	4.2*55	#6*3		4.2*38	#8*1-1/2"
3.9*20	4.2*65	#7*1-1/8		4.2*65	#8*2-9/16"
3.9*25	4.2*70	#7*1-1/4		4.2*75	#8*3"
3.9*30	4.2*75	#7*1-1/2
3.9*35	4.2*90	#7*1-5/8
3.9*38	4.2*100	#7*1-3/4
3.9*40		#7*1-7/8
**The specifications above are all regular sizes for both fine and coarse thread Drywall Screws. Please contact us if you have special request.

Features

• Material: Made of carbon steel C1022A to make the Drywall Screw have stronger strength. Adopt high-strength rolling arm, small gap, mute, wear-resistant, uniform force
• Bugle head: It is the most obvious character of the Drywall Screws. Most of the Drywall Screw's head are in this shape. So Drywall Screws are called "bugle screws" or "Phillips bugle head screws" as well refer to the shape of the screw's head. It helps the screw stay in place without tearing all the way through the outer paper layer. The Phillips groove helps not slip when use the screw gun.  
• Groove: Most of the Drywall Screws use the Plillips's groove. The cross groove does not slip.
• Sharp Point: Some of the Drywall Screws with sharp point which make them easier to stab the screw into drywall. Some of the Drywall Screws with drill point which make them have stronger strength.
• Drill Point: Drywall Screw with drilling point is also called tek screw, which could be used in sheet metal fixing or other hard material fixing.
• Surface Treatment: After a phosphate coating and heat treated to make the Drywall Screws resist corrosion and harder.
• Coarse Thread: is known as W-type Screws. They are work best for fastening gypsum to wood studs. The wide and deeper threads mesh with the wood grain and provide more gripping area than fine thread Drywall screws. Since there are wider threads on the coarse thread sharp screws, it is more easily cut fingers when use them, so it is best to wear gloves when working with coarse thread wood screws, plasterboard screws and drywall screws.
• Fine Thread: is known as S-type screws. Their threads are closer than the Coarse thread. They are used primarily when attaching gypsum to metal studs. The sharp threads surrounding the screw mean less surface area to grip metal. Are able to efficiently cut their own secure path into the metal material, which is much harder than wood grain. So the Fine threaded screws are work well with metal because they have sharp points and are self-threading.
• 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.

Similar Products for Reference

 

 

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 + pallet packing.
Customized Product	Acceptable
Customized MOQ	10 Tons

Different types of Screws
Head Type  

Groove Type

Point Type

Thread Type

Surface Treatment  

Product Advantages

1.The cross groove does not slip
2.Stable drilling speed, not easy to break
3.Adopt high-strength rolling arm, small gap, mute, wear-resistant, uniform force
4.Adopt high-speed cold heading machine to form one piece, high strength
5.Self-owned heating treatment producing line,which can promise screws hardness and strength well perform always
Company Profile
Tianjin Spider hardware factory is subsidiary of Tianjin Spider Impex,which produce and supply drywall screws ,chipboard screws and self drilling screws since 2009 .

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,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 and we have a team to inspect all the process during production.
We have been supplying our products to Europe, America, South and Middle America,  East and South of Asia which more than 20 countries.Rich experience of different market can help customers to stand out  in the competitive market .

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

Product Packaging

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, 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.