DRILLER® screws for metal sheet stitching & photovoltaic panels assembling

DRILLER® WKTF are self-tapping screws that ensure stable and solid construction fixing into roof surface. WKTF screws are especially recommended for mounting photovoltaic panels and other installations on roofs with steel sheet cladding. Special thread geometry provides tight connection between materials and enables high load bearing capacity.



The innovative tapered thread minimizes screw slippage on the metal sheet surface and reduces assembly time. The chipless assembly eliminates metal chips, which cause corrosion centres. On request, we deliver screws with steel or stainless EPDM washer assembled. 

APPLICATION

• Enable fast and tight assembly of photovoltaic panels (solar panels)
• Well adapted for fast and chipless longitudinal assembling of trapezoidal sheets 

ADVANTAGES

• Short assembly time
• Sharp screw tip eliminates metal chips during assembling
• Securely protect the fixed construction against strong wind
• Available in two variants: made of carbon steel or bimetallic (combination of INOX A2 stainless steel with hardened carbon steel drilling point)