Hebei Kappa Metal Products Co., Ltd. is one of the most reliable manufacturers and suppliers of hex flange head self drilling screws with epdm metal bonded washer in China. Welcome to buy bulk high quality hex flange head self drilling screws with epdm metal bonded washer 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 details
Material:Carbon steel 1022awith zinc
Available diameters: 4.2, 4.8, 5.5, and 6.3 mm;
lengths range: from 13 to 200 mm to accommodate diverse fastening needs.
Factory Direct Pricing
As a leading source manufacturer, we supply high-quality hex flange head self-drilling screws with EPDM metal bonded washers at competitive factory-direct prices.
By eliminating intermediaries, we offer exceptional cost efficiency for bulk orders, making us the ideal partner for distributors, contractors, and industrial buyers seeking reliable supply chains without compromising on quality.
Material & Application Advantages
The hex flange head provides a broad bearing surface, ensuring a secure clamp load while preventing over-tightening.
The EPDM metal bonded washer forms a weathertight seal that resists UV radiation, ozone, and extreme temperatures, delivering superior anti-leak performance.
Constructed from high-strength carbon steel or stainless steel with corrosion-resistant coatings, they are ideal for metal roofing, steel framing, HVAC systems, and exterior cladding in both commercial and residential applications.
Custom packaging for your needs
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.
Export Experience
With over a decade of experience exporting to India,North America, Europe, Southeast Asia, the Middle East, and beyond, we possess deep expertise in meeting diverse international quality standards.
What can our factory provide?
Our self-drilling screw lines have the capacity to hold stable lead times-not just for one-time orders, but for repeat and seasonal volume. We keep raw material stock on hand and schedule production against confirmed orders, so the delivery date we quote is a date we can actually meet. If something shifts on our side, we tell you early instead of letting it slide.
- Capacity: dedicated self-drilling screw lines plus in-house EPDM washer bonding. We control the washer fit and cure, not an outside supplier, so output and lead times stay stable.
- Price: integrated production cuts handling, scrap, and outsourced-washer cost. Scale on screws and washers together keeps unit cost competitive without cutting specs.
- Service: one factory contact reviews your panel thickness, purlin gauge, and washer spec before quoting. Samples, packing options, and repeat-order scheduling are handled in the same system.
- Reliability: raw material stock, scheduled production, and QC on drill point, thread, coating, and washer adhesion-so what ships matches what was quoted.
FAQ
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