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Carbon Steel Hex Washer Head Roofing Screw Roof Screw

Basic Info

Model No.:  LKQS

Product Description

Model NO.: LKQS Type: Hexagon Head With Flange Connection: Drilling Standard: DIN, GB, ANSI, JIS Normal Used Material: C1022A Surface Hardness: Hv 560 Min. Market: Global Optional Material: Stainless Steel, Carbon Steel, Alloy Steel, Brass Optional Size: 2.5mm (#6) to 6.3mm (#14), Length to 150mm (6") Specification: DIN, ANSI, ISO, JIS, Non-Standard HS Code: 7318 Material: Carbon Steel Groove: No Recess Head Style: Hexagonal Grade: to Standard Depth of Carbonize: 0.10-0.23mm Core Hardness: 240-425 Hv Sample: Free (If in Store) Optional Finish: Passivated, Zinc, HDG, Magni, Geomet Trademark: LK Origin: China Carbon Steel Hex Washer Head Roofing Screw Roof Screw 
1> Description: Carbon Steel Hex Washer Head Roofing Screw Roof Screw 
2> Material: Carbon Steel 
3> Surface: Zinc Plated in Chromium and RoHS
4> Size: 2.5mm (#6) up to 6.3mm (#14)
5> Length: Up to 200mm (8 Inch)

Lockey Industrial Produce the screw include Self Drilling Screw, Self Tapping Screw(Sheet Metal Screw), Drywall screw, Chipboard screw, Roof screw, Machine Screw, wood screw, plastic screw...

If you are interesting our products, please do not hesitate to contact us, then we could quote our best price as soon as get from you.

Technical Delivery Conditions
Material Steel Stainless steel
General requirements As specified in DIN 267 part 1
Screw thread and thread ends As specified in DIN 7970
Cross recesses As specified in DIN 7962
Metallurgical properties Surface hardness≥560 HV 0.3 A2, A4
Core hardness: 240-560 HV 0.3
Material DIN 17200, DIN17210 A2, A4
Mechanical properties Test As specified in DIN 50133 part 2, DIN50190 part 1
Limit deviations 
geometrical tolerance
Product grade A as specified in ISO 4759 part 1
ISO 4759 Part 1
Surface finish As processed  Bright
DIN267 Part 2 shall apply with regard to surface roughness
DIN267 Part 19 shall apply with regard to permissible surface discontinuities
DIN267 Part 9 shall apply with regard to electropiating
Other type of surface protaction being suject to agreement
Acceptance inspection DIN267 Part 5 shall apply with regard to acceptance inspection


Who is Lockey?
A fastener manufacture founded in 1973. Dragon Iron Group devotes itself to the manufacture and sales of fasteners, hardware parts, forging and machine parts for Auto and other industries. 
Dragon Group has its headquarter, Dragon Iron Enterprise, in A Lien, Taiwan. 
Lockey Industrial Co., Ltd. set up in 2003 in Dongguan City to be the Foreign Sales Department of the group. Our plant was established in Jingjiang City. In that way, we can easily export our products . 
What do Lockey produce?
As a fastener manufacture, we mainly produce including, but not only: 
1. Bolt, studs, and thread rods... 
2. Hex Nut, nylon Nut, flange locknut...
3. Tapping screw, Drilling Screw, wood screw, machine screw, socket cap screw...
4. Plain washer, spring washer, tooth washer...
5. Structural applications, ASTM A325/A490, ASTM F1852/2280, DIN6914/5/6, DIN7990...  
Meanwhile, special fasteners, hardware parts, forging and machine parts for Auto are also in our range. We make parts for Toyota, Honda.
70% of our products are exported.
Why Lockey?
Lockey never stops doing one thing: INNOVATE. Innovation is the permanent power for the development of Lockey. Technology innovation and concept innovation, keep Lockey going well and going further. Meanwhile, Lockey gathered a group of talents who good at management and co-operation. Go and contact with these professional man, you will get a satisfied result.    
We are glad that you choose Lockey as your supplier, but Lockey more than a supplier. We are partner. We do not only sell, we share. Share the newly info of fastener, price trend...we also share profit.
We are friend. We do not only care our sales, but also yours; and the quality in using. 
What do Lockey do to assure the quality?
As a over 40 years experience in fastener manufacture with ISO9001 certificate, we meet difficulties or problems, and we solve them all ways. Lockey set up a quality assurance system according to ISO9001 with the 40 years experience. Criteria were made on factors that may effect the quality. 80% of our staff are skilled, and have worked in Lockey for more than 5 years, employee have to take skill class on/off work for weeks. All of these is to guide our worker how to prevent and handle an issue.
Do Lockey produce non-standard item?
Yes, we do. Send your specification drawings to our sales representative, then you will get a quotation.
Do lockey have a published price list?
We do NOT have a published price list. In our business market conditions are always fluctuating, which makes standard pricing difficult to maintain. We allow our sales staff to be flexible when it comes to quoting on your requirements, which means that you will receive the best pricing available when you need it.
Do Lockey offer a discount?
Of course. we can offer you a discount base on your large quantity. But at the same time, like what we said above, we believe our sales staff have offered you the best price. In that way, you may have a discount, but not a big one. Go and explore for it.
Do Lockey provide samples?
Why not, and stored samples are totally free. What we are going to tell you is that we do NOT have budget for Express. 
What's the delivery time?
It depends on your order quantity. It is about 20-40 days for standard ones, 35-60 days for non-standard ones. Check it with sales representative, he/she will give a accurate date of shipment.   
What is the payment term?
T/T & L/C are the prefer payment term. Also Western-Union is acceptable for low value payment, like samples' Express fee. . 

Contact us if you need more details on Roofing Screw. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Roof Screw、Hex Roofing Screw. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Drilling Screw

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