Painted-Head Self-Drilling Screws for Roofing & Cladding

Painted-head self drilling screws are widely used for metal roofing, wall cladding and facade projects. Unlike ordinary zinc plated fasteners, their hex heads are finished with durable powder coating, available in dozens of colour options to match different metal panel profiles.

Colour matching is critical for building aesthetics. Project owners want screw heads to blend seamlessly with roof sheets, avoiding obvious exposed fastener spots. The high quality baked paint layer delivers good UV resistance, resisting fading under long-term sunlight exposure outdoors.

The coating process requires strict pre-treatment. Complete phosphating on the screw head guarantees strong paint adhesion, preventing peeling, chipping or flaking during installation. Poor surface treatment will cause the paint layer to fall off when driven by impact drills.

We keep the threaded shank and drill tip unchanged. Only the hex washer head receives the paint finish. The drill point and threads remain fully functional for fast drilling and tapping into steel substrates. The bonded EPDM washer stays intact to secure waterproof sealing after tightening.