Hexagon Head Flange Drilling Screws with Tail with EPDM Washers

Product Description

Hexagon Head Flange Drilling Tail with EPDM Washer Roofing Swallow Tail Self Drilling Screws

Product Description

 

Self-drilling screw is a screw that can tap its own hole as it is driven into the material. For hard substrates such as metal or hard plastics, the self-drilling ability is often created by cutting a gap in the continuity of the thread on the screw, generating a flute and cutting edge similar to those on a tap. Thus, whereas a regular machine screw cannot tap its own hole in a metal substrate, a self-drilling one can (within reasonable limits of substrate hardness and depth).

 What are self drilling screw, and how do they work?

Self-drilling screws, also known as TEK® screws, are available in a wide variety of head styles and finishes to fit the demands of nearly any application. Tengri manufacture and offers more than 20 different head style self-drilling screws, in both steel and stainless steel. Self-drilling screws enable drilling without first creating a pilot hole. These screws are usually used to join materials like sheet metal.

Head Type	Hex Head, Flat Head, Pan Head, Round Head, Hex Washer Head
Size	ST2.9, ST3.5, ST4.2, ST4.8, ST5.5, ST6.3 (#4 - #14)
Length	10 ~300mm
Ponit No.	#3, #3.5, #4, #5
End Points	Drilling, Tek,Type17, Tapping, Spoon, Wing Tek
Thread	Thread: full thread, half thread, partical thread, AB, A ,C thread
Groove	Philips, pozi, slotted, hex, square, socket, combined
Packing	Small Box+carton+pallet Or customized by client request
Surface	Polish, Plain, Galvanized (Various of color), Paint, Power Coated, Nickel, Ruspert
Material	1.Stainless steel	SUS201,304,316,410
	2.Carbon steel	C1018,C1022,C10B21,C10B33,C1035,C1045,40CrMo,42CrMo
	3. Alloy steel	SCM435,C10B21,C10B33
	Standard	DIN7504k
	Application	Building,Industry,Furniture,Sanitary,Electronics,Traffic.

Detailed Photos

 

Product Parameters

size(mm)	size(mm)	size(mm)
4.2*13	5.5*32	6.3*25
4.2*16	5.5*38	6.3*32
4.2*19	5.5*41	6.3*38
4.2*25	5.5*50	6.3*41
4.2*32	5.5*63	6.3*50
4.2*38	5.5*75	6.3*63
4.8*13	5.5*80	6.3*75
4.8*16	5.5*90	6.3*80
4.8*19	5.5*100	6.3*90
4.8*25	5.5*115	6.3*100
4.8*32	5.5*125	6.3*115
4.8*38	5.5*135	6.3*125
4.8*45	5.5*150	6.3*135
4.8*50	5.5*165	6.3*150
5.5*19	5.5*185	6.3*165
5.5*25	6.3*19	6.3*185

 

Packaging & Shipping

 

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Modified Truss Head Self Tapping Screw

Head type:Truss head/Wafer Head/Buttom head/K-lath head
Material:C1022, C1022A ···
surface treatment:Zinc Plated (White Blue Zinc Plated, Yellow Zinc, White Zinc Plated)
Diameter:3.9mm, 4.2mm, 4.8mm ···
Driver types:Phillips
Rib(Nib):Customized

Pan Framing Head Self Tapping Screw

Head type:Pan Framing Head/Wafer Head
Material:C1022, C1022A ···
surface treatment:Zinc Plated (White Blue Zinc Plated, Yellow Zinc, White Zinc Plated),Phosphated (Black Phosphated, Gray Phosphated)
Diameter:3.5mm, 3.9mm ···
Driver types:Phillips
Rib(Nib):Customized

Company Profile

Tianjin Boya Metal Products Co.,Ltd was began from 2001.Our main products are common nail, jolthead nail, duplex head nail ,concrete nail,U fence staples ,cut masonry nail,roofing nail,clout nail and all kinds of nails,black annealed wire, twisted wire,electrical galvanized wire ,hot dipped galvanized wire wires and wire mesh products used in construction and decoration. We have the advanced wire-drawing, galvanizing and wire mesh weaving equipment. We have 31 sets for producing nails,one production line for black annealed wire ,one line for electricial galvanized and one line for producing the hot dipped galvanised wire .We also supply fence post ,and wire mesh to meet our customer's requirement with lower price and better quality. Our factory covers an area of 20 acres ,15000 square metres. Total employee 70 persons, include excellent sales 8 person. Advanced production equipment and processing technical,the annual production capacity reachs about 50000tons. We have our own wire and nail mills with the independent export and import rights. Our factory located in Binhai,Tianjin, is near to Xingang port and Tianjin airport..The advantages location has ensured punctual delivery time and saved cost. Our products just for exporting, already exported to West Africa, East Africa, Middle East, South America, Southeast Asia etc.So far,we have established the long-term business relationship with Europe clients. And the quality of our products have been appreciated by all clients. We are willing to cooperate with you in near future! Our company principles are fine quality,in-time consignment and reasonable price.We sincerely hope to establish business relationships with friends from around the world and to create a bright future together with your firm.

 

FAQ

Q:What is your minimum order quantity?

A: There's no minimum quantity ,you can buy any quantity. However, few in number, the unit price will be a little higher.

 

Q:How can I get a sample to check your quality?

A: After price is confirmed, you can require samples to check our quality. Free for existing samples ,
    but you need to paid the express freight. For sample making, we will charge a sample fee.
    Sample fee will be confirmed according to the products' craftwork.

 

Q:How can I customize my products? 
A: Attach your drawings with details.(Surface treatment, material, quantity and special requirements etc).

 

Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 50%-70% T/T in advance (depending on different situations.) ,
    balance before shipment.

 

Q.What is the quality of your products guarantee?
A:We have passed ISO9001:2015 Quality Management System Certification, SGS testing report, If the quality doesn't  accord the standard,
    you can exchange the goods for free.

 

Q:What's the delivery time? 
A: For products in stock, we can ship it within 2 working days after receiving your payment. For custom order, within 24 tons,
    production time is 8-20 working days after confirmed every details.

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