12-11x35 CL3 T17 Hex Head Screw (Head: Blue Painted RAL-5017)

Product Overview
The hex flange head blue-painted self-tapping screw is a highly efficient fastening connector designed specifically for outdoor building envelopes, light steel, and timber structures. It combines the fast-installation feature of self-tapping screws, the stable load distribution design of a hex flange head, and the weather-resistant, rust-preventative process of blue baking paint. It can be driven directly into substrates like wood and thin steel plates without pre-tapping or pre-drilling. Widely applied in projects like color steel tile roofing, light steel joist construction, and board splicing, it is a universal fastener that balances installation efficiency, connection strength, and visual consistency.

Product Applications
Fastening color steel tiles and profiled steel sheet roofing.
Constructing light steel joists and log cabin frameworks.
Splicing plates like thin steel sheets and aluminum sheets, as well as installing outdoor facilities.