A
Anonymous
Apr 11, 2026
Rating: 5/5
Fast installation
Saved a lot of time on my warehouse project. Highly recommend.
Description
These are hex-head self-drilling screws designed for fastening color steel roofing and metal cladding without the need for pre-drilled pilot holes. Featuring a sharp drill point and swallows-tail thread design, they efficiently penetrate metal sheets and underlying structures to create a secure, vibration-resistant hold. The screws are available in M4.8 and M5.5mm diameters to accommodate various sheet metal thicknesses and load requirements. Their hardened construction ensures durability during installation and long-term performance in exterior applications. Select the specific diameter that matches your project's material gauge and structural needs for optimal fastening results.
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Carbon Steel C1022 |
| Surface Treatment | Zinc Plated |
| Head Style | Hex Washer Head |
| Drive Type | 8mm Hex Socket |
| Point Type | Tail-Point Drill Tip |
| Thread Type | Self-Tapping |
| Diameter | M4.8mm / M5.5mm |
| Washer Material | EPDM Rubber |
| Application | Metal Roofing and Cladding |
| Pack Size | 500 Pieces per Box |
5 reviews
A
Anonymous
Apr 04, 2026
Rating: 5/5
Seals well
The rubber washer creates a tight seal against rain. No leaks.
A
Anonymous
Apr 02, 2026
Rating: 4/5
Durable
Holding up well after six months of exposure. Good quality.
A
Anonymous
Mar 29, 2026
Rating: 5/5
Excellent penetration
Drilled through my steel beams without pre-drilling. Very satisfied.
A
Anonymous
Feb 09, 2026
Rating: 4/5
Good value
Solid screws for the price. One box had a few with minor scratches.
5 FAQ
Q: Is the coating rust-proof?
A: Zinc plated offers good resistance, but not fully rust-proof in marine environments.
Q: Do I need a magnetized driver?
A: A magnetized driver is recommended for easier handling.
Q: What thickness steel can this drill?
A: Recommended for steel up to 3mm thick.
Q: Can this be used on aluminum?
A: Yes, but ensure proper galvanic corrosion protection is used.
Q: Are different lengths available?
A: Yes, please check the variant options for specific lengths.
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