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Drill, Tap and Fasten in One Step | No Pre-Drilling Required | SS304/SS316 Corrosion Resistance
The Stainless Steel Self-Drilling Screw is a high-performance fastener designed to drill its own pilot hole, tap its own thread, and clamp materials in a single operation.Built with an integrated drill point and manufactured from premium stainless steel, these screws eliminate the need for pre-drilling and are ideal for fastening metal roofing sheets, steel cladding, gutters, and HVAC ductwork.Each screw is produced at our IATF 16949 certified facility, ensuring consistent hardness, sharp cutting edges, and dependable corrosion resistance for demanding exterior installations.
Integrated Drill Point:
· The self-drilling point cuts a clean pilot hole through sheet steel up to the recommended thickness, eliminating pilot-hole drilling and reducing installation time dramatically.
Hex Washer Head:
· The large bearing surface and hex drive provide maximum torque transfer and a watertight clamping seal with optional EPDM sealing washers.
High-Low Thread Design:
· The alternating high-low thread geometry reduces driving torque and increases pull-out resistance in thin metal sections.
Premium Corrosion Resistance:
· Manufactured from stainless steel with passivated finish, these screws withstand long-term exposure to rain, humidity, and industrial atmospheres.
One-Step Installation:
· Drill, tap, and fasten in one pass with a standard hex driver, increasing site productivity compared to two-step anchor systems.
| Parameter | Details |
| Standard | DIN 7504 / ISO 15481 / Custom |
| Material | Stainless Steel 304 (A2), 316 (A4) |
| Point Style | #1 to #5 drill points (selection per material thickness) |
| Head Style | Hex washer head with optional EPDM sealing washer |
| Drive Type | Hex (8mm), Phillips, Torx |
| Diameter Range | 3.5mm to 6.3mm (No. 6 to No. 14) |
| Length Range | 13mm to 100mm |
| Thread Type | Full thread or partial thread |
SS304 (A2):
· The standard stainless grade for roofing, cladding, and general exterior metal fastening.
SS316 (A4):
· Marine-grade stainless for coastal installations and chemically aggressive environments.
Passivated Finish:
· Removes surface contamination and maximizes the natural corrosion resistance of stainless steel.
Optional Coatings:
· Color-matched heads or clear lacquer available to blend with roofing profiles.
Metal Roofing:
1. Fastening profiled steel sheets to purlins and battens without pre-drilling.
Steel Cladding:
2. Securing wall cladding panels and flashings to structural steel frames.
HVAC Ductwork:
3. Fixing duct supports, hangers, and access panels to sheet steel.
Steel Framing:
4. Connecting light-gauge steel studs, tracks, and brackets.
Guttering & Downpipes:
5. Mounting gutters, brackets, and downpipe clips to fascias.
Fencing & Gates:
6. Attaching metal panels and rails to steel posts in outdoor installations.
| Feature | Customization Range |
| Point Selection | Drill point length and geometry matched to your material thickness. |
| Sealing Washers | EPDM washers in black, white, or matched RAL colors. |
| Head Style | Countersunk and wafer head variants for flush applications. |
| Drive Type | Hex, Phillips, or Torx per your installation tools. |
| Packaging | Bulk cartons, retail boxes, or color-sorted kits. |
Pyramid Hardware Fasteners brings 15+ years of Egyptian manufacturing expertise to the global market. Our IATF 16949 certification reflects our commitment to automotive-grade quality controls in the production of self-drilling fasteners. With a production capacity supported by 50+ specialized machines, we offer 70+ varieties of screws. We serve clients across 30+ countries, boasting a 98.5% OTD record. Our strategic location in Egypt allows for rapid shipping to Europe, the Middle East, and Africa, with factory-direct pricing that saves our partners 15-30% compared to traditional supply chains.
Main Export Ports:
· Alexandria Port, Port Said Port, and Damietta Port.
Incoterms:
· FOB, CIF, CFR, and DDU.
Lead Times:
· Samples in 10-15 days; Bulk orders in 35-45 working days.
MOQ:
· 5000-10000 pieces per size (custom items quoted individually).
Packaging:
· Standard 25kg bulk cartons, small boxes, or palletized for large industrial orders.
Q: Do I need to pre-drill before driving a self-drilling screw?
1. A: No. The integrated drill point cuts its own pilot hole in sheet steel up to the recommended thickness, saving a complete work step on site.
Q: How do I select the right drill point?
2. A: Thin sheets (0.5-2mm) typically use #2 or #3 points, while thicker sections (up to 5mm) require #4 or #5 points. We recommend the correct point for your material.
Q: Are these screws suitable for coastal environments?
3. A: Yes, for coastal or saline atmospheres we recommend the A4 (SS316) grade, which offers superior chloride resistance.
Q: Can you supply color-matched screw heads?
4. A: Yes, we can apply color-matched heads or clear coatings to blend with your roofing and cladding profiles.
Q: Do you provide samples for performance testing?
5. A: Absolutely. We ship samples within 10-15 days so you can verify drilling performance and corrosion resistance in your own materials.
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