Stainless Steel Hexagon Washer Head Self Drilling Roof Screw Lag Screw

• Material: Stainless Steel
• Type: Countersunk Head
• Groove: Cross
• Connection: Assemble
• Head Style: Round
• Standard: DIN, GB, ANSI, BSW, JIS
• Model NO.: RK-HSD-01
• Grade: A2-70/A4-70
• Customized: Yes
• Stock Products: Available
• Lead Time: 3-10 Days
• Application: General Industry
• Transport Package: Palletized Cartons
• Specification: 5.5-6.3
• Trademark: Rankoo
• Origin: China
• HS Code: 7318150000
• Production Capacity: 300000tons

Product Description

Stainless Steel Hexagon Washer Head Self Drilling Roof Screw Lag Screw

Standard	DIN7504K
Material	SS304+42A
Diameter	5.5-6.3
Head shapes	hex flange Head
Screw thread	Coarse full thread  fine full thread
Screw tip	cone point
Finish	self color
Features	Good anti-corrosion ability
Grade	A2
Length	25-200mm

Product detail




Advantages:
1.Many products: Any type of stainless steel hardware can be supplied.
2.Good Service : We treat clients in great honest and sincere management is our top mission. 
3.Good Quality:We have strict quality control system .Good reputation in the market.
4.OEM Accepted : We can produce as per your drawings or samples.
5.Shortest Delivery: We have large stock,3 days for stock items, 7-15days for production. 
6.Low MOQ: It can meet your business very well.

Sample Charge:
1.Samples charge: According to your request    Sampling time:5-7days
2.Samples charge: Free for Existing Mold    Sampling time:3days
 
Screw knowledge
1. Drilling 
 
The Bi-Metal Screws Can Penetrate Into Cooper Plates in 0-12mm directly by using tapping machine and the length of the alloy 
steel drilling head also can be designed as different requirement 
 
2. Tapping 
The tapping thread lines in the alloy steel will be more easy to fit the new phatnoma while penetrating into the iron or aluminum
board inside after locate special heat treatment. 
 
3. Locking 
A2 or A4 stainless steel series strenthen the thread lines by a cold forging treatment during whole process;maintain special corrosion 
resistant whithout any heat treatment;screwing in alveolar into fasteners smoothly then finish the fastening combination to achieve excellent
efficacy in resistance to pull out and weatherproof by the way that don't destroy the thread lines steadily and tightly. 
 

Packaging & Shipping

Company Profile

Our company is a professional manufacturer and trader of various of  high quality fasteners including bolts, screws, nuts, washers and anchors. Our factory is located in Dainan town, Xinghua City, Jiangsu province which is also called" hometown of stainless steel fasteners".In addition, we have many partners in the industry, we can also supply our customers with carbon steel fasteners with high quality. At the same time. we have advanced production equipment and technology , and are able to customized non-standard fasteners to meet the individual needs of different industries.

FAQ

A: Are you a factory or a trader?
We are manufacturer with factory plant located in Jiangsu province, Dainan City and we are the the branch in Zhongshan city. We are also a trader for the products we don't produce.
B: What is your MOQ?
For stock products, no strict MOQ, but for non-standard products, MOQ is required, depending on the size of the products. 
C: can I have my own headmark and own design products
Yes, we also offer OEM service and can provide non standard products as well.
D: How is your lead time
For standard products, we mostly have product in stock, so we can make fast delivery(usually 1-3 days).  For non-standard products or out of stock products, lead time is usually around 15 days.
E: Do you have convenient chatting method?
Yes, please send message to me and I will add your whatsapp/wechat,
F: do you have a website, where can I see your new products?
Our new products will be updated through made-in-china.com. You can search our company name and check it.