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Wholesale metal stainless steel tek screws for roof 5/16 m8 galvanised hex head self drilling roofing screws with rubber washer

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Quick Details

Port: Shenzhen
Payment Terms: L/C,Western Union,T/T
Supply Ability: 1000000 Piece/Pieces per Month
Place of Origin: Guangdong China
Size: 5/16 m8,custom
Standard: DIN,BS,ANSI,JIS,Nonstandard,DIN
Head type: Hex head,flange hex head,custom
Material: stainless steel, carbon steel,brass,titanium,etc.,Stainless Steel
Model Number: roofing screw
Brand Name: Chuanghe
Type: self drilling tapping screw
Advantage: high quality,waterproof,custom
Product name: roofing screw with washer rubber
Surface Treatment: Galvanization,Nickel-plated,Black oxide,Dacromet
Key words: metal roofing screws
Head Style: HEX
Finish: galvanized
Application: roof,solar mounting,frame screws
Packaging Detail: plastic bag / Small box+Carton+Pallet. Wholesale metal stainless steel tek screws for roof 5/16 m8 galvanised hex head self drilling roofing screws with rubber washer
Package Preview: https://sc04.alicdn.com/kf/H2d632172e24a41a7a94abec4f2804946y.jpg_640x640.jpg
Chuanghe Fastener Co., Ltd.
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Wholesale metal stainless steel tek screws for roof 5/16 m8 galvanised hex head self drilling roofing screws with rubber washer

Product Description
Product name

hex head drilling roofing screws with rubber washer

5/16 m8,As per your request



4.8/ 6.8/ 8.8/ 10.9/ 12.9

Available Material
All carbon steel,Stainless steel 201/301/304, alloy steel,aluminum,copper,etc.

Surface Treatment

galvanised,Zn- Plated,Ni-plated,Black Anodize,etc.

OEM / ODM / customized service provided
Quality control

ISO standard,100% Whole range inspection through the production

Certificate ISO9001,ISO14001, IATF16949,ROHS
After-sales Service We will follow up every customer and solve all your problems satisfied after sales
Detailed Images

roofing screw-1.jpgroofing screw-size.jpgroofing screw- (3).jpgroofing screw1.jpg

roofing screw use-1.jpg
Do you need a pilot hole for self drilling screws?
 While self-tapping screws will tap a hole into a soft material, self-drilling screws are capable of drilling a hole into anything from metal to wood. This key difference is self-drilling screws have a tip like a drill bit, so they do not need a pilot hole.


What is the difference between self drilling and self tapping screws?
Self-drilling screws eliminate the need for a pilot hole, but can tap as well. Self-tapping screws tap their own threads, but cannot drill through metal and require a pilot hole. These screws are not interchangeable, and mixing up the two can cause many headaches or possible failures in the field.

Drilling&tapping screw.jpg

drilling screw.jpg

 Click here to get more information

Related products:

Hex flange drilling screw.jpg -01.jpg 04.jpg
Roofing screw used for iron roof,solar bracket,water proof roof screws patch,water proof tide,coloured roofing screws.
Roofing nail with screw washer.Roof screw usually have coloured roofing screws,showroom/big mushroom head roofing screw,hanger roofing screw,polycarbonate construction roofing screws. Self-drilling screws are available in stainless steel for weather-exposed areas and in zinc-plated steel for unweathered areas. These steel screws have a head encapsulated by chemical-resistant stainless steel. A rubber-bonded washer compresses to form a watertight seal. 
Company Information

about us advatange









Q1: Why choose Chuanghe?
To provide our customers with first-class services in the supply of quality self drilling roofing screws minimizing costs.


Q2: How is quality ensured?
All our processes strictly adhere to ISO9001 procedures. We have strict quality control from producing to delivery. Our company had strong technology support, 80% of our colleagues are master or bachelor's degree. We have cultivated a group of managers who are familiar with product quality , good at modern concept of management.


Q3: Can You Strictly Follow The Tolerance on The Drawing And Meet The High Precision?
Yes, we can, we can provide high precision parts and make the parts as your drawing.


Q4: How should I order and make payment?
By T/T, for samples 100% with the order; for production, 30% paid for deposit by T/T before production arrangement, the balance to be paid before shipment. negotiation accepted.

Q5: What’s your Delivery Time?
Standard parts: 7-20days
Non-standard parts: 15-25days
We will make the delivery as soon as possible with the guarantee quality


Q6:How to Custom-made (OEM/ODM)?
If you have a new product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.

Q7:Which mode of transport would be better?
In general, the product are heavy, we advice to make delivery by sea, Also we respect your views of other transportation as well.


Contact Us

How to order
Please provide the product you need parameters:  
1. You need the product name
2. You need the amount of products 
3. You need the material of products
4. You need the product specifications 
Because it is convenient we can more quickly to give you a quotation. Thanks!

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