Pin-in torx for tamper-proof application, no pre-drilling required, with 8mm stronger shank.

Torx(Star) drive, Pan Head, #3 Tek Point. Made of stainless 410 used to drill metal, stainless steel etc.

Torx(Star) drive, Pan Head, #3 Tek Point. Made of stainless 304 or 316 for soft material like aluminum.

Serrated hex flange head, Sawtooth thread, double bottom thread, Alloy steel or stainless 410 or bi-metal, widely used for blocks, bricks, concrete etc. Reusable

Stainless 304 or 316, Pin-in Torx, Pan Head, Metric, UNC

Stainless 304 or 316, Pin-in Torx, Button Head, Metric, UNC, Black Zinc plated

Stainless 304 or 316, Philips drive, Pan head, metric, UNC, Black Zinc

Stainless 18-8 or 316,  flat head(80°), square drive, type AB, #6，#8