Ruspert External Hex Drive Washer Head Roofing Screws

Surface treatment

Ruspert screw: Ruspert coating (also called ceramic coating) is a high-grade protective coating to prevent metals from corrosion in various pollutive and atmospheric conditions. The surface is usually in silver color but can come in range of colors depending on the application. Ruspert coating consists of three layers:

• The 1st layer: Metallic zinc layer
• The 2nd layer: Special chemical conversion coating layer
• The 3rd layer: Rustproof layer (Baked ceramic surface coating layer)

Ruspert coating self-drilling universal point screw with a EPDM sealing washer (Neo) for fastening metal roof sheet to thin metal battens, steel purlins, and timber battens, making this screw ideal for steel roof construction. Universal self drilling point enables the tip to drill through light gauge mild steel and timber alike. The flanged hex head lends to high pull-out strength and a Class 4 galvanised coating results in strong corrosion resistance. Top grip thread ensures a secure hold on sheeting and prevents dimpling. Roof Stars also come with upper shank protection that creates a clearance hole that protects the EPDM washer, and helps protect the galvanised coating on the upper thread. Class 4 galvanised coating leaves little swarf for a quicker clean-up and high corrosion resistance.

Features

11 TPI for fast and easy installation

Upper shank protection creates clearance hole that protects the EPDM washer, and helps protect the coating on the upper thread

Universal point for fastening into steel or timber

EPDM sealing washer (Neo)

Also available in Ruspert coating surface treatment.

High pull-out loads

No pre-drilling (please see material thickness for drilling capacities)

Applications

Ideal for fastening metal roof sheets to metal battens, steel purlins, or timber battens

Perfect for steel roofing construction and external applications