Self-Tapping Screw 8017

One of the most in-demand types of fasteners is the RAL 8017 roofing self-tapping screw for wood or metal, with a diameter from 4.8 to 6.3 mm. This hardware item has a hexagon head (across-flats size 8 mm) on one side and a drill point or auger tip on the other.

The threaded metal shaft, made of C1022 carbon steel, is zinc-plated, and the head is coated with brown paint (the shade matching the RAL color chart). The self-tapping screw comes with a steel washer bonded to a sealing EPDM gasket made of ethylene propylene rubber.

Scope of application

The fasteners are used for installing roofing coverings — metal tile or profiled sheet. The thermocompensating sealing gasket keeps out moisture and withstands both high and low temperatures. Before choosing 8017 self-tapping screws, their intended purpose is determined:

• For fastening sheet up to 1.2 mm thick to metal substrates. Screw length ranges from 16 to 150 mm. Through-mounting is possible with or without pre-drilling (depending on the thickness of the roofing material).
• For wooden substrates. Fastener length ranges from 29 to 80 mm. The reduced drill tip and the sharpening angle allow it to enter wood without special pre-drilling.
• Universal. Length 16–150 mm, with two subtypes: one with an auger-type tip — for metal, and one with a pointed tip — for wood.

A screwdriver (power driver) is used to install the fasteners. A hex bit or a socket wrench with a built-in magnet is used as the attachment.

FLOK supplies RAL 8017 self-tapping screws wholesale and retail.