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Home / Screws / External Hex Drill Tail Self-Tapping Screws, Flange Self-Drilling Galvanized Color Steel Roofing Nails with Socket and Bird Tail Drill Tip

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Screws
Origin -
Material High-Carbon Steel with Zinc Plating
Head Type External Hex with Integrated Washer
Drive Size 5/16 inch (8mm) Socket
Point Type #3 Bird Tail Self-Drilling Tip
Thread Style Coarse Thread for Metal Roofing
Finish Galvanized Silver
Application Color Steel Roofing and Cladding
Corrosion Resistance Suitable for Outdoor Exposure
Packaging Bulk Box of 500 Units
Compatibility Works with Standard Impact Drivers

6 reviews

A

Anonymous

Mar 30, 2026

Rating: 5/5

Perfect for metal roofing projects

These screws drilled through the color steel sheets like butter. The hex head seated perfectly without stripping, and the built-in washer created a tight seal. Highly recommend for any roofing job.

A

Anonymous

Mar 25, 2026

Rating: 4/5

Great value, minor finish variation

Bought these for a large barn renovation. They perform excellently and save time since no pre-drilling is needed. One box had a few screws with slightly uneven galvanization, but it didn't affect performance.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Professional grade quality

I use these daily on commercial sites. The bird tail tip is sharp and durable, handling thick gauge steel without breaking. The socket fit is precise, preventing cam-out even at high torque.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Excellent corrosion resistance

Installed these on a coastal property six months ago. Despite the salt air, there is no sign of rust yet. The galvanized coating seems very robust compared to other brands I've tried.

A

Anonymous

Mar 03, 2026

Rating: 4/5

Solid fasteners

Good penetration power and the flange distributes pressure well. I deducted one star because the packaging was a bit damaged upon arrival, though the screws inside were fine.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Saved me hours of work

As a homeowner fixing my shed roof, these were a lifesaver. No need to switch bits or pre-drill holes. They went in straight and held tight against strong winds.

5 FAQ

Q: Do these come with EPDM washers for waterproofing?

A: This specific model features an integrated metal flange washer. For enhanced waterproofing, we recommend using a separate sealant or checking our product line for variants that include bonded EPDM rubber washers.

Q: How many screws are included in one standard box?

A: Our standard bulk packaging contains 500 screws per box. We also offer larger pallet quantities for commercial contractors upon request.

Q: What thickness of metal can these screws drill through without a pilot hole?

A: These #3 point self-drilling screws are designed to penetrate up to 6mm (approx. 1/4 inch) of steel without pre-drilling, making them ideal for most color steel roofing applications.

Q: What size socket driver do I need for these?

A: You will need a 5/16 inch (8mm) magnetic socket driver. This size fits the external hex head securely to prevent slipping during installation.

Q: Are these suitable for attaching wood to metal?

A: While they can penetrate wood, these are optimized for metal-to-metal connections. For wood-to-metal, you might prefer a screw with a finer thread pitch to ensure better grip in the timber.

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