Bi-Metal Roofing Screws
for Roof & Wall Applications
Built for metal roofing, corrugated sheets, wall cladding and steel purlin fixing. Available with DP#3 and DP#5 drilling options, sealing washer solutions, corrosion-resistant coating support, and bulk supply service for distributors, wholesalers and project buyers.
MOQ 30,000+
Free Samples
7 / 25
Days
OEM Packing
Why buyers choose this product category
This page is designed for buyers who need more than a generic screw. The focus is on drilling performance, corrosion resistance and sealing reliability for roofing and wall systems.
Designed for roof &
wall fixing
Suitable for common metal roofing and wall cladding applications where drilling capability, secure fastening and weather resistance are critical.
DP#3 / DP#5
options
Different drilling point options help buyers match the right screw to different steel thickness ranges and installation conditions.
Sealing + coating support
Washer and coating options can be matched to project requirements for outdoor use, depending on environment and specification.
Choose the right model for your project
Use these two modules as the main selling logic in Google Ads. Generic keywords land on this page. DP#3 and DP#5 keywords can jump directly to the matching section.
DP#3 Bi-Metal Roofing Screws
Recommended when the project is within the lighter steel thickness range and requires a balanced combination of drilling efficiency, fastening performance and sealing support.
Typical use
Steel thickness range
Washer options
Supply note
Metal roofing, wall cladding, corrugated sheet, general roofing installation
Commonly used for lighter steel sections; final selection should match project detail
Sealing washer solutions available based on application requirement
Suitable for buyers who want a mainstream roofing screw option for repeated supply
Better fit for common roofing applications
Useful when buyers need a cost-effective mainstream model
Good starting point for distributors stocking common sizes
DP#5 Bi-Metal Roofing Screws
Recommended when the project involves thicker steel sections and requires stronger drilling capability for more demanding installation conditions.
Typical use
Steel thickness range
Washer options
Supply note
Heavier-duty metal roofing, structural fixing scenarios, thicker substrate conditions
Commonly used for thicker steel sections; final selection should match project detail
Sealing washer solutions available based on environment and assembly design
Suitable for buyers who need a stronger model for thicker metal substrate applications
Better fit for thicker steel drilling requirements
Useful when end users need stronger installation performance
Good option for customers serving industrial roofing projects
Core product highlights
Keep this section practical. Buyers do not need slogans.
They need clear reasons to send specs and quantity.
Bi-metal design for drilling performance and corrosion resistance positioning
Roof & wall focused applications instead of generic "all screws" messaging
DP#3 and DP#5 model options for different project conditions
Sealing washer support for roofing and weather-exposed installations
Coating options can be matched to requirement and test standard
Bulk order supply for importers, distributors and wholesalers
Free samples available with freight collected by customer
Packaging customization available upon request
Applications we recommend highlighting
These are the application groups most suitable for ad copy, product cards and inquiry segmentation.
Metal Roofing
For standard roofing sheet fixing where drilling, fastening and sealing are all important.
Wall Cladding
For wall systems that require stable outdoor fastening and weather-oriented assembly support.
Corrugated Sheet
Suitable for corrugated profile installations when washer performance and fit matter.
Steel Purlin Fixing
Use the right DP model to match thickness and installation requirement.
Supply and order support
This is the commercial section that filters out low-quality inquiries and attracts buyers who match your real business model.
MOQ
30,000 pcs and above for standard export orders
Samples
Free samples available, freight to be covered by buyer
Lead Time
About 7 days for stock items, about 25 days for custom orders
Packing
Small boxes + export carton, customized packing available with cost review
Quality, testing and document support
Do not overclaim. Keep the message professional and quote-friendly.
Coating options
Surface treatment and coating solutions can be matched to project requirements, specification and test standard.
Reports on request
Standard test reports and related documents can be shared according to product type and order requirement.
Special testing support
Special testing can be arranged when needed. Extra cost may apply depending on requirement and method.
Frequently asked questions
What is the difference between DP#3 and DP#5?
They are used for different drilling conditions and steel thickness ranges. If you are not sure which one fits your project, send us the application detail, substrate thickness and required quantity.
Can I get free samples before placing an order?
Yes. Free samples are available. Freight is covered by the buyer.
What is your minimum order quantity?
Our standard MOQ starts from 30,000 pcs, depending on specification and order structure.
How long is the lead time?
Stock items are usually around 7 days. Custom orders are usually around 25 days, subject to final specification and quantity.
Can you customize the packaging?
Yes. Standard export packing is available, and customized packing can be arranged with additional cost review.
Can you provide test reports?
Yes. Standard reports can be provided on request. Special testing can also be arranged with additional cost if required.
What information should I send for a quotation?
Please share application, screw type, drilling condition, size/specification, quantity, coating requirement, packing requirement and target market if available.
Do you support OEM or neutral supply?
Yes. Neutral supply and packaging customization can be discussed based on order requirement.
Send your inquiry for pricing, samples or model selection
This section should feel like a B2B RFQ area, not a generic contact form. The clearer the input, the better the quote.
Recommended inquiry details
- Application: roofing, wall cladding, corrugated sheet, steel purlin or other
- Model preference: DP#3, DP#5 or need recommendation
- Required size, head type, washer requirement and coating request
- Quantity and target market
- Any drawings, photos or installation notes
