Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Screws
Origin	-
Material	Stainless Steel 410
Head Type	External Hex with EPDM Washer
Drive Style	Hex Socket
Point Type	Swallow-Tail Self-Drilling
Available Diameters	4.2mm, 4.8mm, 5.2mm
Surface Finish	Galvanized
Primary Application	Color Steel Roofing Tiles
Corrosion Resistance	High (Suitable for Outdoor Use)
Thread Type	Self-Tapping Coarse Thread
Package Contents	Assorted Box of 500 Pieces

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

No leaks after heavy rain

Installed these three months ago. We have had several heavy storms since then, and the rubber washers on these screws have created a watertight seal. Very impressed with the quality.

Anonymous

Mar 29, 2026

Rating: 4/5

Great value for the price

Bought these for a small fence repair involving metal posts. They work great on thinner gauge steel. Just make sure you use a magnetic bit holder as the hex head can be slippery when wet.

Anonymous

Mar 26, 2026

Rating: 4/5

Good quality, strong hold

Used these for a shed renovation. They are very sharp and penetrate easily. I deducted one star only because the box had a few screws with slightly bent heads, but overall 95% were perfect.

Anonymous

Mar 19, 2026

Rating: 5/5

Professional grade fasteners

I've tried many brands for commercial roofing, and these 410 stainless steel screws hold up well against rust. The hex head provides excellent torque transfer without stripping. Highly recommended for contractors.

Anonymous

Mar 17, 2026

Rating: 5/5

Perfect for metal roofing projects

These screws drilled through the color steel sheets like butter. The swallow-tail point eliminated the need for pre-drilling, saving me hours on my garage roof installation. The EPDM washers sealed tightly with no leaks.

Anonymous

Mar 16, 2026

Rating: 5/5

Saved so much time

The self-drilling feature is a game changer. I was able to finish my carport roof in a single weekend. The galvanized coating looks durable and should last for years.

5 FAQ

Q: Do these screws come with rubber washers included?

A: Yes, each screw features an integrated EPDM rubber washer under the hex head to ensure a watertight seal for roofing applications.

Q: What is the difference between the 4.2mm, 4.8mm, and 5.2mm options?

A: The numbers refer to the screw diameter. Choose 4.2mm for thinner sheet metal, 4.8mm for standard roofing applications, and 5.2mm for heavier gauge steel or higher wind load requirements.

Q: Can these be used on wood frames or just metal?

A: While primarily designed for metal-to-metal or metal-to-wood connections in roofing, they perform best when attaching metal sheets to light gauge steel purlins. They can penetrate wood but are optimized for steel.

Q: Are these suitable for outdoor use in coastal areas?

A: Yes, being made of Stainless Steel 410 with a galvanized finish, they offer high corrosion resistance suitable for most outdoor environments, including coastal regions.

Q: What size drill bit do I need to use with these?

A: No pre-drilling is required. The swallow-tail self-drilling point is designed to penetrate color steel tiles and light gauge steel framing directly.

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