Wholesale Stainless Steel 304 & Carbon Steel Hex Head Self Drilling Screws

• Customization: Available
• Material: Stainless Steel
• Type: Hexagon Head
• Groove: Hexagon
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, GB, ANSI, JIS
• Grade: 4.8
• Finish: Zinc Plated
• Surface Treatment: Plain.Black.Zinc Plate. HDG, Stainless Steel
• Thread Type: Standard Thread
• OEM: Availalble
• Usage: Industry
• Transport Package: Bag/Carton+Pallet
• Specification: M3.5-14
• Trademark: Lingke
• Origin: Hebei, China
• HS Code: 7318150000
• Production Capacity: 30000000
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 10.000kg

Product Description

Wholesale Stainless Steel 304 & Carbon Steel Hex Head Self Drilling Screws

Specification

Our premium hex head self-drilling screws with transparent rubber washers provide superior weatherproof sealing for outdoor applications. Featuring:

Color zinc plating for enhanced corrosion resistance
Integrated rubber washer creates permanent watertight seal
Hex washer head for secure power tool driving
Self-drilling point penetrates metal up to 2mm thick
Ideal for: Metal roofing, HVAC systems, outdoor enclosures where moisture protection is critical.

Key Features:

Applications:

100% Waterproof – EPDM rubber compresses to block moisture
Vibration Proof – Steel washer prevents loosening under stress
Faster Installation – No separate washer needed
UV-Resistant Washer – EPDM lasts 5x longer than standard rubber
Wide Compatibility – Steel (0.5-3mm), aluminum, fiberglass

Metal Roofing – Corrugated sheets, standing seam roofs
HVAC Systems – Ductwork sealing joints
Solar Mounting – Waterproof rail attachments
Trailer Manufacturing – Exterior panel fastening
Outdoor Enclosures – Telecom/electric boxes

Company Profile

Hebei Lingke Metal Products Manufacturing co.

Hebei Lingke Metal Products Co., Ltd., founded in 1995 in Handan City, Hebei Province, excels as a manufacturer and exporter of top-tier fasteners. Spanning 11,860 square meters with 60+ skilled technicians, we specialize in bolts, nuts, screws, and washers. Utilizing advanced equipment and rigorous quality control, our products meet ISO, DIN, and ASTM standards, serving the construction, automotive, and machinery sectors globally. Renowned for cost-effectiveness, consistent performance, and OEM/ODM offerings, we export to North America, Europe, and Southeast Asia, building trust with 28+ years of experience. Contact us for reliable fastener solutions!

Other Products

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Certifications

FAQ

Q: What's the lead time for orders?
A: Standard models deliver in 15–30 days; custom units take 30–45 days.
 
Q: Do you provide after-sales service overseas?
A: Yes, we maintain partnered service centers in strategic regions.
 
Q: Can you customize fasteners?
A: Absolutely! We provide OEM/ODM services, including custom sizes, materials, coatings like black oxide and dacromet, head markings, and tailored packaging.
 
Q: What documents do you provide for export?
A: Comprehensive export package including Commercial Invoice, Packing List, Bill of Lading, COC, and more.
 
Q: How can I request a quote?
A: Send us your specifications, including size, material, coating, and quantity, via email for a prompt quote with pricing and terms.