Hex flange-head self-drilling screws combine a hex washer head with an integral drill point to permit one-step drilling and fastening without pre-drilled holes. The flange provides a bearing surface that spreads clamp load across the connected parts.

The integrated flange reduces local compression and helps limit surface abrasion on panels and brackets. Use with metal sheets and thin structural members where self-drilling fasteners are appropriate.

Typical applications include metal roofing, solar mounting brackets, and general metal-sheet connections. Various sizes, thread forms, and surface treatments are available; confirm specific dimensions, thread type and finish before ordering.