from The Century Dictionary and Cyclopedia
- n. A small bolt with a slot in the head for a screw-driver and with a square nut on the screw.
Sorry, no etymologies found.
Its 5/16 stove-bolt will have to be removed, and a 1/4 in. one put in instead.
A stove-bolt axle (See App. 93) is shown, and by using a nut, as explained, bolt magnets may be wound.