Bolt

匹

pǐ

(large roll of material)

弩箭

nǔjiàn

(short, stout, blunt-headed arrow)

捲 /卷

juǎn

(standard measure of length of canvas)

螺栓

luóshuān

(metal fastener)

螺栓

luóshuān

(sliding mechanism to chamber and unchamber a cartridge in a firearm)

門栓 /门栓

ménshuān

(sliding pin or bar in a lock)

門栓 /门栓

ménshuān

(bar to prevent a door from being forced open)

閃電 /闪电

shǎndiàn

(lightning spark)