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How many types of roofing screws

Release Time:

Mar 07,2023

As the Roofing Screws are commonly used to join the metal panel to the wood substrate or the steel beam, the Metal Roofing Screw can be self-tapping type or self-drilling type.

As the Roofing Screws are commonly used to join the metal panel to the wood substrate or the steel beam, the Metal Roofing Screw can be self-tapping type or self-drilling type. The Self Drilling Hex Head Screw is also known as Tek Screw for Roofing.

Types of Head: The Roofing Sheet Screw is featured by a hexagonal head that can be inserted using a socket; this roof sheet screw may also have a slot on the head and can be driven with a flat blade driver.

Types of Thread: The Roofing Screw is usually fully-threaded and can be either fine threaded or coarse threaded. Our Fine Threaded Hex Head Self Drilling Screw is very popular in the Southeast Asian market.

Types of Surface Treatment: As the Corrugated Roofing Screw is mainly used for outside work, a high corrosion resistance is essential for the screw. And we offer different types of surface treatment to deal with this problem, which mainly are the following:
Zinc Plating: It’s also known as galvanized plating and is the most common form of corrosion protection for metal screws. The main process is to immerse the screw in a molten zinc solution at high temperature and thus, the zinc layer is applied to the surface of the metal roofing screw.
The zinc plating has good adhesion, but the coating is very thin and is suitable for a low corrosive environment.

Dacromet: Dacromet is a binder of overlapping zinc and aluminum flakes. It has a longer salt spray time than regular galvanizing (from 500 to 1500 hours). It gives the roof sheet screw a long-term corrosion resistance for outside applications.

Ruspert: The Ruspert coating provides the roofing sheet screw 500-1500 hours of rust resistance in neutral salt spray testing. Compare with Dacromet Roofing Screw, the Ruspert Roofing Screw resists longer the corrosive agent. Besides, the Ruspert coatings come in a range of colors.

Washer types: As we mentioned before, the washer helps the metal roof screw improve its resistance to the weather, especially to the water penetration.
Single EPDM Washer: The Roofing Screw with Hex Flange Head usually comes with a single EPDM washer.

EPDM Bonded Washer: The Metal Roofing Screw with Hex Washer Head comes with a bonded EPDM washer.

PVC Washer: The Roofing Sheet Screw with Hex Flange Head also comes with a single PVC washer. Our Roofing Screw with coarse thread and PVC washer is a star product in Southeast Asia.

Key words：

Roofing Screw

What is Metal Roofing Screw

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What are the applications of the Roofing Screws