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An instrument by means of which the bolt of a lock is shot or drawn; usually, a removable metal instrument fitted to the mechanism of a particular lock and operated by turning in its place.

quarters; depending on the relative positions of the sun and moon. -- Lag screw, an iron bolt with a square head, a sharp-edged thread, and a sharp point, adapted for screwing into wood; a screw for fastening lags.

To throw, as a lance; to let fly; to launch. See Whose arm can lanch the surer bolt. Dryden & Lee.

A kind of shot formerly used at sea for tearing sails and rigging. It consisted of bolts, nails, and other pieces of iron fastened together or inclosed in a canister.

cavity; specifically, the catch which holds a door or gate when closed, though it be not bolted.

ugh blocks on the yards, to haul the leeches by. Totten. -- Leech rope, that part of the boltrope to which the side of a sail is sewed.

n such a position (indicated by a particular combination of the letters) as to permit the bolt to be withdrawn. A strange lock that opens with AMEN. Beau. & Fl. -- Letter paper, paper for writing letters on; especially, a size of paper intermediate between note paper and foolscap. See Paper. -- Letter punch, a steel p…

Lightning. [Obs.] Spenser. Levin brand, a thunderbolt. [Obs.] Spenser.

cifically, a fastening, as for a door, a lid, a trunk, a drawer, and the like, in which a bolt is moved by a key so as to hold or to release the thing fastened.

rod, is attached, or against which anything, as a wedge or key, bears, or through which a bolt passes, etc.

machine. See under Infernal. -- Machine gun.See under Gun. -- Machine screw, a screw or bolt adapted for screwing into metal, in distinction from one which is designed especially to be screwed into wood. -- Machine shop, a workshop where machines are made, or where metal is shaped by cutting, filing, turning, etc.…

State of being maimed. Bolton.

A kingbolt.

A round-bottomed glass flask having a long neck; a bolthead.

Grain (esp. maize, rye, or oats) that is coarsely ground and unbolted; also, a kind of flour made from beans, pease, etc.; sometimes, any flour, esp. if coarse.

r parts of ground wheat the finest bran, separated from the fine flour and coarse bran in bolting; -- formerly regarded as valuable only for feed; but now, after separation of the bran, used for making the best quality of flour. Middlings contain a large proportion of gluten.

A bolter from the Republican party in the national election of 1884; an Independent. [Political Cant, U.S.]

uarter, or the sixteenth of a yard. Nail ball (Ordnance), a round projectile with an iron bolt protruding to prevent it from turning in the gun. -- Nail plate, iron in plates from which cut nails are made. -- On the nail, in hand; on the spot; immediately; without delay or time of credit; as, to pay money on the nail…

ally a small piece of metal), provided with an internal or female screw thread, used on a bolt, or screw, for tightening or holding something, or for transmitting motion. See Illust. of lst Bolt.

inted or pivoted at one end so that it can be opened, the other end being fastened by the bolt, -- used for fastening by passing the bow through a staple over a hasp or through the links of a chain, etc.