This Bi-Metallic screw is comprised of two metal types – the point is manufactured from heat treated high carbon steel for self-drilling performance and the head is manufactured from corrosion resistant stainless steel (304).

The two metals are fused together along the shaft to form a screw that offers excellent self-drilling properties combined with exceptional corrosion resistance.

The screws are finished with a metallic zinc layer followed by a baked top coat that provides an extra layer of corrosion protection and lubrication. This protective coating has the additional benefit of reducing the electrolytic corrosion potential and has a 1000hr salt spray rating.

The wings clear a hole in the timber to allow the head to sit flush and the ribbing on the underside of the head further aids embedment. The square drive will resist cam out during installation.

These screws are ideal for attaching timber to metal. Ensure that the full tip and a few threads protrude past the metal for full strength. 

BI-FIX SPEC SHEET