Hebei Kappa Metal Products Co., Ltd. is one of the most reliable manufacturers and suppliers of pan head self tapping screw with zinc coating in China. Welcome to buy bulk high quality pan head self tapping screw with zinc coating made in China here from our factory. If you have any enquiry about cooperation, please feel free to email us.
Drywall screws are not priced by quantity alone. Weight per piece has a direct effect on cost, especially for large orders. A small difference in screw weight can change the total tonnage and the final price.
Send us the details, drawing on my factory-floor experience, we can analyze your specific market conditions and store requirements to help you determine the most precise and appropriate pricing.e-no guesswork on weight.
Please specify:
01
- Diameter × length
- Head type (bugle head, countersunk, etc.)
02
- Thread type (fine or coarse)
- Coating (black phosphate, gray phosphate, zinc, etc.)
03
- Target weight per piece (g/pc)
- Order quantity
04
- Packaging (dimensions of the box/outer carton, package weight, and whether the logo style or color can be customized)
Product Specifications
Material: Carbon steel with zinc coating for enhanced corrosion resistance
Size: Diameter M3–M6, length 8–50mm (custom sizes available upon request)
|
Specification |
Thread Diameter |
Head Thickness |
Head Diameter |
Thread Length |
|
M4 |
4 |
2.9 |
7.5 |
10, 12, 16, 20, 25, 30, 35, 40, 50 |
|
M5 |
5 |
3.5 |
9.3 |
12, 16, 20, 25, 30, 35, 40, 50 |
|
M6 |
6 |
4.5 |
11.8 |
16, 20, 25, 30, 35, 40, 50 |
Why Choose Our Pan Head Self-Tapping Screws?
- Capacity fits your selling season. We plan production around your peak months and repeat sizes, so lead times hold when your market demand picks up-not just on the first order.
- Price fits your shelf. Integrated screw and EPDM washer production keeps unit cost at a level that supports your target wholesale price and margin, without downgrading the washer or coating.
- Service fits your market requirements. We adjust packing, labels, sizes, and washer specs to your local roofing practice and climate-so the product lands ready to sell, not needing rework.
- Proof before price. Free samples before mass production let you confirm the product matches your market plan-then we talk price on a product you know fits.
In short: we don't quote our factory's strengths in general-we align capacity, cost, and service with the market you sell into.
Aligned with Customer Needs – Factory Strengths
Our manufacturing facility spans 12,000 square meters and operates 8 high-speed cold heading production lines, 6 automatic thread rolling machines, and 4 advanced heat treatment lines, supported by a dedicated in-house laboratory for material and coating testing. With an annual output exceeding 8,000 tons, we maintain consistent inventory and short lead times.
With in-house production, we offer competitive pricing, consistent quality, and flexible lead times-ideal for both bulk orders and just-in-time supply chains.
Quality Control & Certifications
We operate under ISO 9001:2015 certified quality management systems. Each batch undergoes strict inspection-from raw material analysis to dimensional checks, salt spray testing for coating durability, and mechanical performance validation. Our factory spans over 5,000 square meters with automated production lines, ensuring high output capacity without compromising precision.
Customization Services
We support custom diameters, lengths, head styles, and thread types. Whether you require specific plating thickness, packaging, or non-standard dimensions, our engineering team can adapt quickly to meet your application requirements.
Custom Packaging&Private Label Available
Choose from bulk cartons, poly bags with branded labels, or retail-ready packaging. Minimum order quantities can be adjusted to support both small contractors and large-scale procurement needs.
We offer custom box/bags printing and labeling services to help you build your own product line.
Ater-Sales Process
We provide full traceability and responsive after-sales support. Any quality-related issues are addressed within 24 hours, with replacement or credit arrangements made promptly to minimize downtime for your operations.
FAQ
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