PNG SVG PSD EPS MORE
Signs
Flat
Weapons
miscellaneous, Biohazard, Toxic
DarkSlateGray
512x512
Bomb, explosive, miscellaneous
PNG ICO MORE
Maki
danger
24x24
PNG MORE
36x36
PNG ICO ICNS MORE
48x48
Halloween
Photorealistic
Desktop Halloween
Holiday, problem, warning
256x256
Business & finance
Glyph
48x48 Free Time Icons
war, Military, danger
Pixel
24x24 Free Pixel Icons
weapon, Caution, Bomb
24x24 Free Application Icons
Attack, Error, Alert
Network & communications
16x16 Free Application Icons
Caution, warning, danger
16x16
Sports & awards
32px Rounded
32x32
Signs & symbols
Smooth
32px Rounded icons
Radioactive, danger