The grenade body contains 6.5 ounces of high explosive. Each grenade is fitted with a fuse that activates the explosive charge. (6) Capabilities -- can be thrown 40 meters by average soldier. The effective casualty-producing radius is 15 meters.
Steel fragments (not to be confused with shrapnel) are provided by the grenade body and produce an injury radius of 15 metres (49 ft), with a fatality radius of 5 metres (16 ft), though some fragments can disperse as far out as 250 metres (820 ft).
Grenades have about a 4-5 second fuse on them. There were a couple of instances to 'cook-off' a grenade. Usually when assaulting a room. You release the spoon, count "One thousand, Two thousand" and throw the grenade in.
When detonated, the fuse/grenade body assembly remains intact. The body is a tube with holes along the sides that emit the light and sound of the explosion. The explosion does not cause shrapnel injury, but can still burn.
So 10 grenades.... You died, you idiot.