Definitions for "Ice screw"
Keywords:  piton, screw, climbs, bore, ice
A protection device for ice climbing. Looks like a large bolt that can be screwed in hard ice.
Item of protection used on ice climbs. They come in various styles and lengths and can be screwed into ice and then clipped to.
A threaded piton made of aluminum or some other light metal designed to bore into ice securely enough to act as a protective anchor.