Hello!
I wonder what kind of thread the French F1 grenade of 1915 had in the hole where the fuse was screwed in.
During the First World War, many of these grenades were delivered to Russia. And after the war, 1 million grenades were not used.
But the grenade detonators were already faulty after the war. And the russian designer Koveshnikov developed his own model of fuse for the F1 grenade.
In the 1920s, all French F1 grenades in the USSR warehouses were equipped with Koveshnikov fuses.
The Koveshnikov fuse has a strange, non-standard thread - 0.6 inches in diameter with a thread pitch of 13 turns per inch and a thread profile angle of 60 degrees.
I assume that the F1 hand grenade had a metric thread M16x2 in the threaded hole for the fuse.
I assume that, based on the available equipment and tools, designer Koveshnikov simply selected a more or less suitable inch thread (by the way, this could have been the case before the revolution, on his first fuses), and only later,
when making their own grenade bodies, they began to make such a thread in the bodies of these grenades.
Here I have drawn a scale drawing showing how to screw the Koveshnikov fuse into the threaded hole of the F1 grenade with an M16x2 thread.
Can anyone confirm or refute this hypothesis?
Can anyone find documents somewhere on the exact thread of the F1 grenade model 1915?
Can anyone confirm or refute my hypothesis that the F1 hand grenade had a metric thread in the hole for the fuse?
I wonder what kind of thread the French F1 grenade of 1915 had in the hole where the fuse was screwed in.
During the First World War, many of these grenades were delivered to Russia. And after the war, 1 million grenades were not used.
But the grenade detonators were already faulty after the war. And the russian designer Koveshnikov developed his own model of fuse for the F1 grenade.
In the 1920s, all French F1 grenades in the USSR warehouses were equipped with Koveshnikov fuses.
The Koveshnikov fuse has a strange, non-standard thread - 0.6 inches in diameter with a thread pitch of 13 turns per inch and a thread profile angle of 60 degrees.
I assume that the F1 hand grenade had a metric thread M16x2 in the threaded hole for the fuse.
I assume that, based on the available equipment and tools, designer Koveshnikov simply selected a more or less suitable inch thread (by the way, this could have been the case before the revolution, on his first fuses), and only later,
when making their own grenade bodies, they began to make such a thread in the bodies of these grenades.
Here I have drawn a scale drawing showing how to screw the Koveshnikov fuse into the threaded hole of the F1 grenade with an M16x2 thread.
Can anyone confirm or refute this hypothesis?
Can anyone find documents somewhere on the exact thread of the F1 grenade model 1915?
Can anyone confirm or refute my hypothesis that the F1 hand grenade had a metric thread in the hole for the fuse?
