Looking for reliable self-drilling screws for metal, sheet metal, or steel profiles? WADFOW and RAMOX self-drilling screws skip an entire step in your work — no need to pre-drill a pilot hole, the screw drills and threads in one motion. Our price list includes a range of heads, lengths and diameters priced between ₪46 and ₪599 incl. VAT. This guide covers how to pick the right screw, how to install it correctly the first time, and common mistakes to avoid.
Quick Summary
✅ WADFOW Z-head self-drilling screw 4.2mm — ₪46 incl. VAT
💪 High durability for sheet metal and steel profile work
⚡ Saves time — no pre-drilling needed
🛠️ Wide range of heads, lengths and diameters for every job
🇮🇱 Built for Israeli weather conditions and common construction work
What Is a Self-Drilling Screw and Why Is It Different? ⚙️
A self-drilling screw has a drill point at its tip, letting it drill and thread in a single continuous motion — no pre-drilled pilot hole needed like with a standard screw. This saves significant time on sheet metal, framing and steel profile jobs. Pay attention to the screw's diameter and length relative to the material thickness, and to the head type (Z, Phillips, hex) that matches your driver.
The most common mistake is choosing a screw that's too short or the wrong diameter for the metal thickness — this causes a loose connection that won't hold over time. Another mistake is running the drill at too high a speed, which overheats the drill point and dulls it quickly.
In Israel, for roofing and corrugated sheet metal work, choose screws with corrosion-resistant coating and a quality rubber washer, due to sun and winter rain exposure. WADFOW and RAMOX offer models with and without a washer, depending on your needs.
💡 Pro Tip
Before drilling a whole row of screws, test the drill speed and pressure on a scrap piece of metal first. A drill point that overheats loses its sharpness within seconds.
How to Install a Self-Drilling Screw Step by Step 🔧
Prep: Make sure your driver is set to 'drill' mode, not just 'drive', and use a bit matching the screw head. Clean the work area of dirt or rust for a good grip.
Installation: Position the screw at exactly 90 degrees to the material, apply steady, moderate pressure, and let the screw do the work — don't push too hard, as this wears down the drill point faster. Once it penetrates, continue until the head sits flush without digging into the surface.
Maintenance & safety: Always wear safety glasses — metal shavings can fly. Periodically check that screws haven't loosened over time, especially in areas exposed to wind and vibration.
WADFOW Self-Drilling Screws Price List 🛒
| Image | Product | Price (incl. VAT) | Stock | Buy |
|---|---|---|---|---|
 | WADFOW Z-Head Self-Drilling Screw – 4.2mm diameter, 13 / 19mm length | **₪46** incl. VAT | ✅ In stock | 🛒 Buy |
 | WADFOW Self-Drilling Screw for Sheet Metal, No Washer | **₪57** incl. VAT | ✅ In stock | 🛒 Buy |
 | White Z-Head Self-Drilling Screw – High Quality, Taiwan | **₪101** incl. VAT | ✅ In stock | 🛒 Buy |
 | VERO Self-Drilling Screw for Sheet Metal, No Washer – High Quality, Taiwan | **₪599** incl. VAT | ✅ In stock | 🛒 Buy |
Our Recommended Products ⭐
WADFOW Z Drill Screw – 4.2mm Diameter in 13mm and 19mm Lengths
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WADFOW Self-Drilling Screw – High Durability and Easy Use
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Z Drill Screw White – High Quality from Taiwan
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Self-drilling roofing screw with VERO washer #14 (6.3 mm) – various lengths from 3/4″ to 6″ – high quality from Taiwan
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View productFrequently Asked Questions ❓
What's the difference between a self-drilling screw and a regular screw?
A self-drilling screw has a drill point that lets it drill its own hole while threading, while a regular screw requires a pre-drilled pilot hole.
What screw diameter is right for a corrugated metal roof?
Most sheet metal roofing work uses a 4.2–4.8mm diameter screw with a rubber washer, depending on the metal thickness and water exposure.
Do self-drilling screws need a washer?
Yes, for outdoor and roofing work a rubber-washered screw is recommended to prevent water intrusion. For indoor work, a screw without a washer is often sufficient.
How much do self-drilling screws cost at ramo.co.il?
Our price list ranges from ₪46 to ₪599 incl. VAT, depending on the model, brand and pack size.
Conclusion
Quality self-drilling screws save time and hassle on any metalwork job. Stock is limited, so order now before your preferred size runs out.