bolt head


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bolt head

The enlarged shape which is preformed on one end of a bolt to provide a bearing surface.
References in classic literature ?
I may say that it was with no regret that we bid adieu to Tigerland, as we rechristened the ancient Devon, and, beating out into the Channel, turned the launch's nose southeast, to round Bolt Head and continue up the coast toward the Strait of Dover and the North Sea.
The bolt head catch is in the middle safety position.
A critical (but simple) ground check you did not mention is when examining the through-bolts holding the nosewheel scissors to the airplane, put a wrench on the bolt head and turn it.
The barrel extension pinned to the chamber end contains the interrupted threads that mate with the angled lugs on the bolt head.
Following a brief rundown of the basic action parts (bolt, sleeve, safety, safety spring, extractor, cocking piece, firing pin, handle, bolt head, etc.
Previous Benelli guns required the shooter to drop the bolt with enough force to engage the rotating bolt head and lock the action for firing.
Not only can the headspace be easily set by the owner, due to the barrel being tightened with a lock nut rather than screwed tightly against the front of the action, but the bolt head can be switched to accommodate different cartridges.
The system operates as follows: The bolt mechanism consists of two major components, the bolt head and the bolt carrier (which also carries the firing pin).
A rotating bolt head is the heart of the Blink feeding system that combines a smaller gas piston so you can whiff all three shots in less than a second.
The new license plate has security images that cannot be removed by any known method without damaging the sheeting while the bolt head screw and nuts will have their own serial number.