Nail Grenade by the Jolly Roger

Effective fragmentation grenades can be made from a block of tnt or

other blasting explosive and nails.


Material Required:



Block of TNT or other blasting explosive


Non-electric (military or improvised) blasting cap

Fuse Cord

Tape, string, wire, or glue





1) If an explosive charge other than a standard TNT block is used, make a

hole in the center of the charge for inserting the blasting cap. TNT can

be drilled with relative safety. With plastic explosives, a hole can be

made by pressing a round stick into the center of the charge. The hole

should be deep enough that the blasting cap is totally within the


2) Tape, tie, or glue one or two rows of closely packed nails to the

sides of the explosive block. Nails should completely cover the four

surfaces of the block.

3) Place blasting cap on one end of the fuse cord and crimp with pliers.


NOTE: To find out how long the fuse cord should be, check the time it

takes a known length to burn. If 12 inches (30 cm) burns for 30 seconds,

a 10 second delay will require a 4 inch (10 cm) fuse.


4) Insert the blasting cap in the hole in the block of explosive. Tape or

tie fuse cord securly in place so that it will not fall out when the

grenade is thrown.


Alternate Use:



An effective directional anti-personnel mine can be made by placing nails

on only one side of the explosive block. For this case, an electric

blasting cap can be used.


Revised in '94. -= Exodus =-